subject:(Brazing)

Oregon State University

1. Tolle, Michael C. Ductile facture of metals under high triaxial stress states.

Degree: PhD, Mechanical Engineering, 1994, Oregon State University

URL: http://hdl.handle.net/1957/35695

Subjects/Keywords: Brazing alloys

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tolle, M. C. (1994). Ductile facture of metals under high triaxial stress states. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/35695

Chicago Manual of Style (16^th Edition):

Tolle, Michael C. “Ductile facture of metals under high triaxial stress states.” 1994. Doctoral Dissertation, Oregon State University. Accessed December 08, 2019. http://hdl.handle.net/1957/35695.

MLA Handbook (7^th Edition):

Tolle, Michael C. “Ductile facture of metals under high triaxial stress states.” 1994. Web. 08 Dec 2019.

Vancouver:

Tolle MC. Ductile facture of metals under high triaxial stress states. [Internet] [Doctoral dissertation]. Oregon State University; 1994. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/1957/35695.

Council of Science Editors:

Tolle MC. Ductile facture of metals under high triaxial stress states. [Doctoral Dissertation]. Oregon State University; 1994. Available from: http://hdl.handle.net/1957/35695

University of Waterloo

2. Trivedi, Viren Pravin. An Investigation of the Soldering and Brazing Behaviour of Mg-Mg Joints using Sn, Zn and Mg containing Filler Metals.

Degree: 2012, University of Waterloo

URL: http://hdl.handle.net/10012/6719

► In order to evaluate the feasibility of forming Pure Mg – Pure Mg and Mg Alloy – Mg Alloy joints using soldering and brazing, four… (more)

▼ In order to evaluate the feasibility of forming Pure Mg – Pure Mg and Mg Alloy – Mg Alloy joints using soldering and brazing, four filler metals (Sn, Sn-9Zn, Sn-9Zn+X wt%Mg and Mg:Zn:X(Sn-9Zn)) were used at peak heating temperatures of ~250°C, 350°C and 450°C. Differential Scanning Calorimetry (DSC) and microstructure characterization were used to evaluate the successful joints. When using Sn as a filler metal, a joint forms, at temperatures as low as 235°C, which consists of a Mg-Sn eutectic filler layer and a continuous Mg2Sn intermetallic layer at the filler metal/Mg interface. This joint microstructure persists up to peak temperatures of 350°C and 450°C. The main effect of increasing the peak temperature causes an increase in the thickness of the Mg2Sn layer. Joints formed using Sn-9Zn prealloyed filler metal, developed a filler metal composition according to a Sn rich Mg-Sn-Zn ternary microstructure. A continuous Mg2Sn layer still formed in the joint. Ternary phase diagram predictions support the development of a number of MgxZny intermetallic compounds. However, only isolated experimental evidence of Mg-Zn liquid formation was present at peak heating temperature of 350°C and no evidence of MgxZny intermetallic layers was observed for both base metal systems using Sn-9Zn filler metal at 250°C and 350°C. Upon further heating above 350°C, a Mg7Zn3 layer forms which eventually leads to a Mg-Zn eutectic liquid formation as 450°C is reached. Wide gap Transient Liquid Phase Bonding (TLPB) was carried out by adding Mg to Sn-9Zn filler metal. Decrease in liquid volume fraction during solidification was noted with increase in Mg wt% as well as an increase in heating temperatures. Complete consumption of the filler metal was observed at 30wt% Mg and 450°C. Microstructural events were noted to be similar to Mg-Mg couples using Sn-9Zn filler metal. Mg-Zn, 50:50 wt% filler metal was thus used to evaluate joints without Mg2Sn intermetallic formation. Mg-Zn binary liquid phase formation was found to correspond to 342°C upon initial heating and presence of solid Mg7Zn3 in microstructure was found in samples heated to 350°C. Increase in diffusional solidification of Zn into the unreacted Mg powder and Mg base metal was noticed upon further heating to 450°C. Significant influence on the microstructure was noticed with addition of prealloyed Sn-9Zn powder to Mg-Zn filler metal mixture. Sn-9Zn was observed to be consumed in solid state during initial heating while alloying and dissolution of Pure Mg particles was seen to be accelerated. All Pure Mg powder was consumed indicating a large volume fraction present at 450°C in the case of filler containing 10% Sn-9Zn. The primary cellular grains of (Mg) grow from the Mg base metal substrate and Mg7Zn3 solidifies in the intercellular region. In the original filler metal portion of the diffusion couple, a mixture of (Mg), Mg7Zn3 and eutectic appears with a more dispersed character indicative of an equiaxed growth process. Promising results from 45Mg:45Zn:10(Sn-9Zn) wt% and peak…

Subjects/Keywords: Magnesium; Zinc; Tin; Brazing; Joining

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Trivedi, V. P. (2012). An Investigation of the Soldering and Brazing Behaviour of Mg-Mg Joints using Sn, Zn and Mg containing Filler Metals. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/6719

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Trivedi, Viren Pravin. “An Investigation of the Soldering and Brazing Behaviour of Mg-Mg Joints using Sn, Zn and Mg containing Filler Metals.” 2012. Thesis, University of Waterloo. Accessed December 08, 2019. http://hdl.handle.net/10012/6719.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Trivedi, Viren Pravin. “An Investigation of the Soldering and Brazing Behaviour of Mg-Mg Joints using Sn, Zn and Mg containing Filler Metals.” 2012. Web. 08 Dec 2019.

Vancouver:

Trivedi VP. An Investigation of the Soldering and Brazing Behaviour of Mg-Mg Joints using Sn, Zn and Mg containing Filler Metals. [Internet] [Thesis]. University of Waterloo; 2012. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/10012/6719.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Trivedi VP. An Investigation of the Soldering and Brazing Behaviour of Mg-Mg Joints using Sn, Zn and Mg containing Filler Metals. [Thesis]. University of Waterloo; 2012. Available from: http://hdl.handle.net/10012/6719

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manitoba

3. Esmaeili, Niyousha. Analysis of brazing effects on hot corrosion behavior of an aerospace superalloy.

Degree: Mechanical Engineering, 2017, University of Manitoba

URL: http://hdl.handle.net/1993/32240

► Hot corrosion is a predominant type of degradation that takes place in gas turbine engine components. Wide-gap brazing is a commonly used method for joining… (more)

Subjects/Keywords: Brazing; Hot corrosion; Superalloy

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Esmaeili, N. (2017). Analysis of brazing effects on hot corrosion behavior of an aerospace superalloy. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/32240

Chicago Manual of Style (16^th Edition):

Esmaeili, Niyousha. “Analysis of brazing effects on hot corrosion behavior of an aerospace superalloy.” 2017. Masters Thesis, University of Manitoba. Accessed December 08, 2019. http://hdl.handle.net/1993/32240.

MLA Handbook (7^th Edition):

Esmaeili, Niyousha. “Analysis of brazing effects on hot corrosion behavior of an aerospace superalloy.” 2017. Web. 08 Dec 2019.

Vancouver:

Esmaeili N. Analysis of brazing effects on hot corrosion behavior of an aerospace superalloy. [Internet] [Masters thesis]. University of Manitoba; 2017. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/1993/32240.

Council of Science Editors:

Esmaeili N. Analysis of brazing effects on hot corrosion behavior of an aerospace superalloy. [Masters Thesis]. University of Manitoba; 2017. Available from: http://hdl.handle.net/1993/32240

Oregon State University

4. Tiwari, Santosh K. Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications.

Degree: PhD, Industrial Engineering, 2010, Oregon State University

URL: http://hdl.handle.net/1957/14996

► Transient liquid-phase diffusion brazing is used in precision, hermetic joining applications as a replacement for diffusion bonding to reduce cycle times, reduce bonding pressure and… (more)

▼ Transient liquid-phase diffusion brazing is used in precision, hermetic joining applications as a replacement for diffusion bonding to reduce cycle times, reduce bonding pressure and improve yields. Studies showed that the interlayer used in diffusion brazing can be detrimental due to the use of melting point depressants (MPDs). The goal of this study was to investigate the role of nanoparticles and their size distribution in reducing bonding temperature of stainless steel surfaces for Microfluidic applications, as nanoparticles have inherently lower melting point and higher diffusivity than that of their bulk counterpart. The conventional interlayer has been replaced by a nickel nanoparticle (NiNP) film without any MPDs for diffusion brazing of stainless steel 316L laminae. Brazing was carried out in a uni-axial vacuum hot press at temperatures 750°C, 800°C, 900°C and 1000°C; at a bonding pressure of 10 MPa; at a heating rate of 10°C/min and dwell times of 1 and 2 hrs at each temperature. Comparison among the conventionally diffusion bonded, diffusion brazed and NiNP diffusion brazed samples is made with regard to microstructural evolution, diffusional profile and bond strength. Taken together, the results show that NiNP-assisted diffusion brazed samples have continuous bond line with low void fraction and high shear strength compared to conventionally diffusion bonded and brazed samples. Also, comparing within the NiNP diffusion brazed group, the samples brazed at 900°C have the best results. Effect of particle size on diffusion brazing of stainless steel 316 was also studied with the help of two different sets of nanoparticles (N1: average particle size of 46.7±6.2 nm and N2: average particle size 8.8±0.9 nm. Results showed that the sample brazed with 8.8 nm particles indicated better results with a more homogeneous bondline structure. The findings of this work have positive implications for the economics of NP-assisted diffusion brazing. Advisors/Committee Members: Paul, Brian K. (advisor), Haapala, Karl (committee member).

Subjects/Keywords: Stainless steel 316; Stainless steel – Brazing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tiwari, S. K. (2010). Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/14996

Chicago Manual of Style (16^th Edition):

Tiwari, Santosh K. “Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications.” 2010. Doctoral Dissertation, Oregon State University. Accessed December 08, 2019. http://hdl.handle.net/1957/14996.

MLA Handbook (7^th Edition):

Tiwari, Santosh K. “Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications.” 2010. Web. 08 Dec 2019.

Vancouver:

Tiwari SK. Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications. [Internet] [Doctoral dissertation]. Oregon State University; 2010. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/1957/14996.

Council of Science Editors:

Tiwari SK. Nickel nanoparticles-assisted diffusion brazing of stainless steel 316 for microfluidic applications. [Doctoral Dissertation]. Oregon State University; 2010. Available from: http://hdl.handle.net/1957/14996

University of Kentucky

5. Yu, Cheng-Nien. JOINT FORMATION UNDER SEVERELY ALTERED BACKGROUND ATMOSPHERE IN CONTROLLED ATMOSPHERE BRAZING OF ALUMINUM.

Degree: 2015, University of Kentucky

URL: http://uknowledge.uky.edu/me_etds/67

► Adverse changes of background atmosphere in a brazing chamber cause qualitative and quantitative deterioration of joint formation in an aluminum brazing process. This study offers… (more)

Subjects/Keywords: Joint Formation; Atmospheric Impact; Controlled Atmosphere Brazing; Brazeability; Aluminum Brazing; Manufacturing; Mechanical Engineering

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yu, C. (2015). JOINT FORMATION UNDER SEVERELY ALTERED BACKGROUND ATMOSPHERE IN CONTROLLED ATMOSPHERE BRAZING OF ALUMINUM. (Masters Thesis). University of Kentucky. Retrieved from http://uknowledge.uky.edu/me_etds/67

Chicago Manual of Style (16^th Edition):

Yu, Cheng-Nien. “JOINT FORMATION UNDER SEVERELY ALTERED BACKGROUND ATMOSPHERE IN CONTROLLED ATMOSPHERE BRAZING OF ALUMINUM.” 2015. Masters Thesis, University of Kentucky. Accessed December 08, 2019. http://uknowledge.uky.edu/me_etds/67.

MLA Handbook (7^th Edition):

Yu, Cheng-Nien. “JOINT FORMATION UNDER SEVERELY ALTERED BACKGROUND ATMOSPHERE IN CONTROLLED ATMOSPHERE BRAZING OF ALUMINUM.” 2015. Web. 08 Dec 2019.

Vancouver:

Yu C. JOINT FORMATION UNDER SEVERELY ALTERED BACKGROUND ATMOSPHERE IN CONTROLLED ATMOSPHERE BRAZING OF ALUMINUM. [Internet] [Masters thesis]. University of Kentucky; 2015. [cited 2019 Dec 08]. Available from: http://uknowledge.uky.edu/me_etds/67.

Council of Science Editors:

Yu C. JOINT FORMATION UNDER SEVERELY ALTERED BACKGROUND ATMOSPHERE IN CONTROLLED ATMOSPHERE BRAZING OF ALUMINUM. [Masters Thesis]. University of Kentucky; 2015. Available from: http://uknowledge.uky.edu/me_etds/67

KTH

6. ALLVAR, MARIE. MIG/MAG brazing with Cold Metal Transfer.

Degree: Machine Design (Dept.), 2012, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148077

►

In the automotive industry a commonly used material is thin steel sheets coated with a thin layer of zinc for corrosion resistance purposes. Welding… (more)

▼

In the automotive industry a commonly used material is thin steel sheets coated with a thin layer of zinc for corrosion resistance purposes. Welding of this material, with the high temperatures involved, causes problems with zinc burn-off leading to reduced corrosion resistance. The zinc evaporation also causes arc disturbances leading to spatter formation, pores and difficulties achieving good visual weld quality. The joints are in many cases visible or semi-visible (e.g. visible after opening a door) and “A-grade” quality is demanded, meaning no visible discontinuities are allowed. It also implies a smooth and generally appealing appearance of the joint.An alternative to welding is brazing, and laser brazing meets the requirements but the process is associated with high costs. In the national project “LEX-B”, funded by Vinnova, the possibilities of using arc brazing, in particular one MIG/MAG brazing and two TIG brazing processes, for some automotive applications are investigated. This master thesis is connected to the first part of the project and aims at compiling data for making a selection of the most promising process to investigate and optimise further. LEX-B is conducted in cooperation between Swerea KIMAB, Volvo Trucks, Scania CV and University West. The joint of interest is a lap joint between bottom and upper sheets of 1.2 mm and 0.8 mm respectively that represents a joint on the side of a truck cabin. The requirements are visual A-grade quality and tensile shear strength of 300 MPa.In the project the MIG/MAG process Cold Metal Transfer (CMT) was compared to the TIG processes forceTIG and Plasmatron. CMT was experimentally investigated while the results for the other two processes were obtained partly from a previous study and partly from Volvo Trucks where tests were performed simultaneously. A system for measuring data for the process was developed, test specimens were brazed and examined visually and mechanical destructive testing was performed to ensure the tensile shear strength. Parameter studies were done for further process optimisation.

Inom fordonsindustrin är ett ofta använt material stål i tunna ark belagda med zink p.g.a. zinkets korrossionsskyddande egenskaper. Vid svetsning av detta material uppstår problem med zink som förångas vilket leder till minskad korrosionsbeständighet. Förångningen av zink orsakar också störningar av ljusbågen vilket leder till sprut, porer och svårighet att uppnå god visuell svetskvalitet. Fogarna är i många fall synliga eller delvis synliga (t.ex. synlig efter att ha öppnat en dörr) och "A-kvalitet" efterfrågas, vilket innebär att inga synliga diskontinuiteter tillåts. Fogen ska upplevas jämn och tilltalande.Lödning är ett alternativ till svetsning, och laserlödning är en process som uppfyller kraven men är förknippad med höga kostnader. I det nationella projektet "LEX-B", som finansieras av Vinnova, undersöks möjligheterna att använda båglödning, specifikt en MIG/MAG-process och två TIG-processer, för dessa applikationer. Detta examensarbete är…

Subjects/Keywords: CMT; Cold Metal Transfer; forceTIG; Plasmatron; brazing; arc brazing; laser brazing; automotive; zinc coated; galvanised; lap joint; CMT; Cold Metal Transfer; forceTIG; Plasmatron; lödning; båglödning; laserlödning; fordonsindustri; förzinkad; överlappsfog

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

ALLVAR, M. (2012). MIG/MAG brazing with Cold Metal Transfer. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148077

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

ALLVAR, MARIE. “MIG/MAG brazing with Cold Metal Transfer.” 2012. Thesis, KTH. Accessed December 08, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148077.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

ALLVAR, MARIE. “MIG/MAG brazing with Cold Metal Transfer.” 2012. Web. 08 Dec 2019.

Vancouver:

ALLVAR M. MIG/MAG brazing with Cold Metal Transfer. [Internet] [Thesis]. KTH; 2012. [cited 2019 Dec 08]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148077.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

ALLVAR M. MIG/MAG brazing with Cold Metal Transfer. [Thesis]. KTH; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148077

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

7. Filliard, Guillaume. Contribution à la qualification du procédé industriel de soudo-brasage laser acier-aluminium à grande vitesse : Contribution to the qualification of the industrial steel-aluminium laser brazing process at high brazing speed.

Degree: Docteur es, Mécanique-matériaux, 2016, Paris, ENSAM

URL: http://www.theses.fr/2016ENAM0049

►

L’allégement des véhicules est un objectif incontournable dans l’industrie automobile. Parmi les voies exploitées par les constructeurs, le déploiement d’alliages d’aluminium pour le pavillon permet… (more)

▼

L’allégement des véhicules est un objectif incontournable dans l’industrie automobile. Parmi les voies exploitées par les constructeurs, le déploiement d’alliages d’aluminium pour le pavillon permet un allégement de plusieurs kilogrammes. C’est pourquoi, le procédé de soudo-brasage laser occupe une place de choix pour l’assemblage hétérogène pavillon aluminium/caisse acier. Cependant, en plus des problèmes liés à l’hétérogénéité du joint soudé (formation de composés intermétalliques par exemple), des difficultés inhérentes à la production en grande série émergent : un environnement avec de fortes contraintes industrielles, un niveau de conformité élevé et robuste ainsi qu’une cadence de production imposant des grandes vitesses de soudo-brasage comprises entre 4 et 6 m/min et adaptée à des configurations exploitables industriellement. L’objectif de ce travail de thèse est de conduire une analyse physique et technologique du process de soudo-brasage laser pour un assemblage hétérogène allégé pavillon/caisse. Dans un premier temps, un ensemble d’hypothèses sur l’influence de la physique du procédé, des variables process et de l’environnement d’étude sur la conformité et la reproductibilité de ces assemblages furent établies. Leur validation ensuite a été réalisée par des essais à l’échelle 1 sur une installation laser de production industrielle, prolongée par des analyses de la métallurgie et de la microstructure des assemblages ainsi que d’une simulation numérique du procédé. La physique du procédé en lien avec les paramètres du process de soudo-brasage laser acier/aluminium à haute vitesse a été identifiée. Les variables énergétiques ont montrées un fort impact sur le niveau de conformité atteint ainsi que sur la dispersion des résultats. Celles-ci tendent à influencer fortement les phénomènes physiques mises en jeu et notamment la thermique à l’interface acier/aluminium, impactant directement la formation des composés intermétalliques et leurs microstructures. Différentes tailles de grains ont été observés en fonction des paramètres process, contrôlant ainsi la tenue mécanique des assemblages soudo-brasés. La modulation in fine du cycle thermique de soudo-brasage, piloté par la physique activée du process, permet de discriminer les configurations les plus optimales pour une application industrielle du procédé.

Weight reduction of vehicles is a key objective in the automotive industry. Particularly, the use of aluminum alloys for the roof is one of the most promising path studied by manufacturers to save several kilograms. Therefore, the laser brazing process has a place of choice for assembling heterogeneous aluminum roof / steel body-side. However, in addition to issues related to the heterogeneity of the welded joint (formation of intermetallic compounds, for example), issues related to the mass production emerge: an environment with strong industrial constraints, high and robust levels of compliance, a production rate involving high brazing speeds between 4 and 6 m / min and fitting with industrial…

Advisors/Committee Members: El Mansori, Mohamed (thesis director), Mezghani, Sabeur (thesis director).

Subjects/Keywords: Soudo-Brasage laser; Vitesse de soudo-Brassage; Conformité; Paramètres process; Laser weld-Brazing process; Brazing speed; Compliance; Process parameters

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Filliard, G. (2016). Contribution à la qualification du procédé industriel de soudo-brasage laser acier-aluminium à grande vitesse : Contribution to the qualification of the industrial steel-aluminium laser brazing process at high brazing speed. (Doctoral Dissertation). Paris, ENSAM. Retrieved from http://www.theses.fr/2016ENAM0049

Chicago Manual of Style (16^th Edition):

Filliard, Guillaume. “Contribution à la qualification du procédé industriel de soudo-brasage laser acier-aluminium à grande vitesse : Contribution to the qualification of the industrial steel-aluminium laser brazing process at high brazing speed.” 2016. Doctoral Dissertation, Paris, ENSAM. Accessed December 08, 2019. http://www.theses.fr/2016ENAM0049.

MLA Handbook (7^th Edition):

Filliard, Guillaume. “Contribution à la qualification du procédé industriel de soudo-brasage laser acier-aluminium à grande vitesse : Contribution to the qualification of the industrial steel-aluminium laser brazing process at high brazing speed.” 2016. Web. 08 Dec 2019.

Vancouver:

Filliard G. Contribution à la qualification du procédé industriel de soudo-brasage laser acier-aluminium à grande vitesse : Contribution to the qualification of the industrial steel-aluminium laser brazing process at high brazing speed. [Internet] [Doctoral dissertation]. Paris, ENSAM; 2016. [cited 2019 Dec 08]. Available from: http://www.theses.fr/2016ENAM0049.

Council of Science Editors:

Filliard G. Contribution à la qualification du procédé industriel de soudo-brasage laser acier-aluminium à grande vitesse : Contribution to the qualification of the industrial steel-aluminium laser brazing process at high brazing speed. [Doctoral Dissertation]. Paris, ENSAM; 2016. Available from: http://www.theses.fr/2016ENAM0049

McMaster University

8. Shaker, Mohammed. INVESTIGATION OF MECHANICAL PERFORMANCE AND FORMABILITY OF WELDED AND BRAZED SHEET MATERIALS.

Degree: PhD, 2017, McMaster University

URL: http://hdl.handle.net/11375/22098

► In the last two decades or so, hybrid structures from dissimilar materials and/or sheet gauges have been developed to achieve weight reduction while maintaining or… (more)

▼ In the last two decades or so, hybrid structures from dissimilar materials and/or sheet gauges have been developed to achieve weight reduction while maintaining or even improving structural performance such as stiffness, crash and impact behavior. In particular, welded and brazed sheet materials in the form of tailor blanks (TBs) are being increasingly used or considered for future applications in different applications such as automotive, aerospace and marine constructions as they offer attractive combination of strength and performance in applications where weight reduction is desirable. However, technical problems are often encountered during forming of TBs from dissimilar base sheet materials with different thickness and/or strength. These include weld line movement and non-uniform deformation. Additionally, there are premature weld failures due to the presence of softening zone (as in TBs made from advanced high strength steels), and brazed interface failure due to insufficient bonding and wetting (as in TBs made from steel and aluminum). These areas of forming of TBs need to be scientifically studied to advance the use of dissimilar materials. The current research involves an understanding of deformation and forming behavior of steel-to-steel tailor welded blanks (TWBs) made from advanced high strength steel (AHSS) such as dual phase (DP780) steel. The research also involves a study of deformation behavior of steel-to-aluminum tailor brazed blanks (TBBs). TWBs have been successfully joined using a relatively new welding techniques such as defocused fiber laser welding. TBBs, on the other hand, have been successfully produced by fiber Laser/MIG hybrid brazing and Cold Metal Transfer brazing (CMT). In addition, the formability of TWBs of different gauges and/or strengths was tested by using a new, simple and reproducible method of formability testing using a double-layer blank method. This method was devised and assessed for testing various steel combinations in different strain paths such that the weld line stayed in position with respect to forming tools and is subjected to the same stress and strain state as the parent material in the weld and its vicinity. Moreover, results from conventional stretch forming tests, single-layer blank, and the double-layer method were compared at the macroscopic level (such as weld line movement, forming limit etc.) as well as at the microscopic level (such as failure location within the weld and failure mode) to isolate the advantages of the proposed double-layer method. With regard to TBBs made by fiber Laser/MIG and CMT brazing methods, a fundamental knowledge and understanding of the local deformation behavior and material plastic ow in and around the brazed steel-aluminum interfaces were obtained by conducting miniature tensile mechanical tests that focus on continuous observation of the brazed region under a high magnification optical microscope to assess the ductility of the brazed joint and its capacity to carry the load during a material shaping… Advisors/Committee Members: Jain, Mukesh, Chen, James, Mechanical Engineering.

Subjects/Keywords: laser welding; hybrid brazing; CMT brazing; DP steel; steel/aluminum; TWBs; TBBs; double-layer; formability; miniature tensile

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Shaker, M. (2017). INVESTIGATION OF MECHANICAL PERFORMANCE AND FORMABILITY OF WELDED AND BRAZED SHEET MATERIALS. (Doctoral Dissertation). McMaster University. Retrieved from http://hdl.handle.net/11375/22098

Chicago Manual of Style (16^th Edition):

Shaker, Mohammed. “INVESTIGATION OF MECHANICAL PERFORMANCE AND FORMABILITY OF WELDED AND BRAZED SHEET MATERIALS.” 2017. Doctoral Dissertation, McMaster University. Accessed December 08, 2019. http://hdl.handle.net/11375/22098.

MLA Handbook (7^th Edition):

Shaker, Mohammed. “INVESTIGATION OF MECHANICAL PERFORMANCE AND FORMABILITY OF WELDED AND BRAZED SHEET MATERIALS.” 2017. Web. 08 Dec 2019.

Vancouver:

Shaker M. INVESTIGATION OF MECHANICAL PERFORMANCE AND FORMABILITY OF WELDED AND BRAZED SHEET MATERIALS. [Internet] [Doctoral dissertation]. McMaster University; 2017. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/11375/22098.

Council of Science Editors:

Shaker M. INVESTIGATION OF MECHANICAL PERFORMANCE AND FORMABILITY OF WELDED AND BRAZED SHEET MATERIALS. [Doctoral Dissertation]. McMaster University; 2017. Available from: http://hdl.handle.net/11375/22098

University of Cambridge

9. Ali, Majed. Active metal brazing of alumina to Kovar® using Ag-Cu-Ti-based alloys.

Degree: PhD, 2017, University of Cambridge

URL: https://www.repository.cam.ac.uk/handle/1810/291971 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.774845

► The fundamental chemical processes leading to the formation of braze joints between alumina of ≥95 wt.% Al2O3 and Kovar® (Fe-29Ni-17Co wt.%) using Ag-Cu-Ti-based active braze… (more)

▼ The fundamental chemical processes leading to the formation of braze joints between alumina of ≥95 wt.% Al2O3 and Kovar® (Fe-29Ni-17Co wt.%) using Ag-Cu-Ti-based active braze alloys (ABAs) have been clarified in this work. In addition, the effects on the resultant microstructure of altering the peak brazing temperature (Tp), time at Tp and the purity of the alumina with up to ~5 wt.% silica have been determined. Two commercially available Ag-Cu-Ti-based ABAs containing 1.8 and 4.5 wt.% Ti commonly used for the brazing of alumina were used in this work. Initially, alumina/Ag-Cu-Ti/alumina joints were prepared to eliminate metal dissolution from the Kovar® into the ABA so that the chemical interaction between the ABA and the alumina was undisturbed and could be studied separately. Conditions simulating those of a commercial process result in a bi-layered structure at the ABA/Al2O3 interface that is mostly comprised of Ti3Cu3O, which is in contact with the ABA, alongside a thin γ-TiO layer on the Al2O3. Brazing experiments using single crystal Al2O3 revealed that the titanium in the ABA first reacts with the Al2O3 to form a transient Ti2O layer, which then enables the ABA to wet the Al2O3. The Ti2O layer breaks down quickly to support the growth of Ti3Cu3O particles that nucleate behind it and are in contact with the ABA. Particles of γ-TiO are shown to be the last interfacial phase to form in the joint by a reaction between Al2O3 and titanium which has diffused through the Ti3Cu3O. The addition of Kovar® next to the ABA does not change the intrinsic chemical reactions occurring at the ABA/Al2O3 interface. However, the extent to which the Ti3Cu3O and γ-TiO layers grow is limited as a consequence of the reactions occurring at the ABA/Kovar® interface. Intergranular silica in the alumina is required to establish a chemical bond between the alumina and ABA using typical brazing conditions. The formation of a Fe2Ti layer on the Kovar® and its growth, along with adjacent Ni3Ti particles in the ABA, dominate the microstructural developments at the ABA/Kovar® interface. Joints with uniform microstructures containing continuous reaction layers indicative of good chemical bonding at each interface were only produced by brazing for short periods of time using a Tp very close to the ABA liquidus temperature. This was also the case for brazing with the high melting temperature ABA Copper ABA® (Cu-3.0Si-2.3Ti-2.0Al wt.%).

Subjects/Keywords: Alumina; Active metal brazing; Kovar; CusilABA; Ticusil; Joining; Ceramics; Brazing; TEM; EELS; SEM; EDS; EDX; Al2O3; AgCuTi

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ali, M. (2017). Active metal brazing of alumina to Kovar® using Ag-Cu-Ti-based alloys. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/291971 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.774845

Chicago Manual of Style (16^th Edition):

Ali, Majed. “Active metal brazing of alumina to Kovar® using Ag-Cu-Ti-based alloys.” 2017. Doctoral Dissertation, University of Cambridge. Accessed December 08, 2019. https://www.repository.cam.ac.uk/handle/1810/291971 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.774845.

MLA Handbook (7^th Edition):

Ali, Majed. “Active metal brazing of alumina to Kovar® using Ag-Cu-Ti-based alloys.” 2017. Web. 08 Dec 2019.

Vancouver:

Ali M. Active metal brazing of alumina to Kovar® using Ag-Cu-Ti-based alloys. [Internet] [Doctoral dissertation]. University of Cambridge; 2017. [cited 2019 Dec 08]. Available from: https://www.repository.cam.ac.uk/handle/1810/291971 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.774845.

Council of Science Editors:

Ali M. Active metal brazing of alumina to Kovar® using Ag-Cu-Ti-based alloys. [Doctoral Dissertation]. University of Cambridge; 2017. Available from: https://www.repository.cam.ac.uk/handle/1810/291971 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.774845

10. Andrade Centeno, Dany Michell. Análise microestrutural de junta brasada de aço inoxidável duplex UNS S32101, UNS S32304, UNS S32750 e UNS S32707 com metal de adição a base de níquel.

Degree: Mestrado, Engenharia Metalúrgica e de Materiais, 2013, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3133/tde-19092014-111340/ ;

►

Os aços inoxidáveis duplex (AID) caracterizam-se pela sua microestrutura composta por austenita numa matriz ferrítica, com fração volumétrica média de 50% para cada fase. A… (more)

▼

Os aços inoxidáveis duplex (AID) caracterizam-se pela sua microestrutura composta por austenita numa matriz ferrítica, com fração volumétrica média de 50% para cada fase. A combinação destas características confere-lhes excelente resistência mecânica e à corrosão. A soldagem/junção destes aços é frequentemente uma operação crítica, já que, ao sofrer ciclos térmicos, estes aços têm suas propriedades alteradas. Portanto, processos de junção com ausência de gradientes de temperatura, como a brasagem, mostram-se uma solução prática para a junção destes aços. No entanto, o adequado desenvolvimento do processo de brasagem em AID envolve considerações importantes a respeito da escolha dos parâmetros de processamento e metal de adição em conjunto com os ciclos térmicos de aquecimento e resfriamento. O presente estudo pretende avaliar a brasabilidade dos AID UNS S32101(baixa liga), UNS S32304 (baixa liga), UNS S32507 (superduplex) e UNS S32707(hiperduplex), mediante a caracterização da junta brasada. Estes aços foram brasados em forno continuo com metal de adição BNi-7 (Ni-Cr-P), na temperatura de 1100 °C, por tempos de 32 min e 12 min, seguidos de resfriamento em forno, utilizando-se folgas de 0,5, 0,3 e 0,0 mm. A junta brasada foi caracterizada utilizando-se microscopia ótica e microscopia eletrônica de varredura (MEV). A identificação microestrutural foi realizada via Microanálise Química de Energia Dispersiva de Raios-X (EDS) e difração de Raios-X. Foi identificada na junta brasada dos diferentes AID a fase rica em níquel, assim como fases prejudiciais compostas por fosfetos de níquel e cromo. A fase rica em níquel, que usualmente é denominada de -Ni, apresenta-se preferencialmente em toda a região da junta, sem a presença de fase intermetálica contínua no centro da junta. No caso dos aços inoxidáveis super e hiperduplex esses apresentaram a formação de fase sigma na região da interface da junta, do lado do metal de base, devido aos ciclos térmicos de brasagem

The duplex stainless steels (DSS) are characterized by its microstructure consisting of austenite in a ferritic matrix with mean volumetric fraction of 50% for each phase. The combination of these features gives them excellent mechanical strength and corrosion resistance. The welding / joining of these steels are often considered as a critical operation, since, subjected to thermal cycles, they have their microstructures changed and, consequently, their properties. Therefore, joining processes without temperature gradients, like brazing, are shown as a practical solution for joining these steels. However, the proper development of brazing process of DSS involves important issues concerning the choice of processing parameters and the brazing filler metal together with heating and cooling brazing thermal cycles. This study aims at evaluating the brazeability of DSS UNS S32101 (lean duplex), UNS S32304 (lean duplex), UNS S32507 (superduplex) and UNS S32707 (hyperduplex) by characterizing the brazed joint. These steels were brazed in a furnace with filler metal BNi-7…

Advisors/Committee Members: Brandi, Sérgio Duarte.

Subjects/Keywords: Aço inoxidável duplex; Brasagem; Brazing; Duplex stainless steel; Soldagem; Welding

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Andrade Centeno, D. M. (2013). Análise microestrutural de junta brasada de aço inoxidável duplex UNS S32101, UNS S32304, UNS S32750 e UNS S32707 com metal de adição a base de níquel. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3133/tde-19092014-111340/ ;

Chicago Manual of Style (16^th Edition):

Andrade Centeno, Dany Michell. “Análise microestrutural de junta brasada de aço inoxidável duplex UNS S32101, UNS S32304, UNS S32750 e UNS S32707 com metal de adição a base de níquel.” 2013. Masters Thesis, University of São Paulo. Accessed December 08, 2019. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-19092014-111340/ ;.

MLA Handbook (7^th Edition):

Andrade Centeno, Dany Michell. “Análise microestrutural de junta brasada de aço inoxidável duplex UNS S32101, UNS S32304, UNS S32750 e UNS S32707 com metal de adição a base de níquel.” 2013. Web. 08 Dec 2019.

Vancouver:

Andrade Centeno DM. Análise microestrutural de junta brasada de aço inoxidável duplex UNS S32101, UNS S32304, UNS S32750 e UNS S32707 com metal de adição a base de níquel. [Internet] [Masters thesis]. University of São Paulo; 2013. [cited 2019 Dec 08]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3133/tde-19092014-111340/ ;.

Council of Science Editors:

Andrade Centeno DM. Análise microestrutural de junta brasada de aço inoxidável duplex UNS S32101, UNS S32304, UNS S32750 e UNS S32707 com metal de adição a base de níquel. [Masters Thesis]. University of São Paulo; 2013. Available from: http://www.teses.usp.br/teses/disponiveis/3/3133/tde-19092014-111340/ ;

Texas A&M University

11. Velamati, Manasa. Micro Joining of Aluminum Graphite Composites.

Degree: 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9375

► Advanced aluminum graphite composites have unique thermal properties due to opposing coefficients of thermal expansion of aluminum and graphite. The thermal and mechanical properties of… (more)

Subjects/Keywords: Metal matrix composites; aluminum; graphite; welding; brazing; joining

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Velamati, M. (2012). Micro Joining of Aluminum Graphite Composites. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9375

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Velamati, Manasa. “Micro Joining of Aluminum Graphite Composites.” 2012. Thesis, Texas A&M University. Accessed December 08, 2019. http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9375.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Velamati, Manasa. “Micro Joining of Aluminum Graphite Composites.” 2012. Web. 08 Dec 2019.

Vancouver:

Velamati M. Micro Joining of Aluminum Graphite Composites. [Internet] [Thesis]. Texas A&M University; 2012. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9375.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Velamati M. Micro Joining of Aluminum Graphite Composites. [Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9375

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Pretoria

12. Miglietti, Warren Martin Andre. High strength, ductile wide gap braze joints for stationary turbine component repairs.

Degree: Materials Science and Metallurgical Engineering, 2008, University of Pretoria

URL: http://hdl.handle.net/2263/29403

► Wide cracks in land-based Ni- or Co-base superalloy turbine components are difficult to repair successfully using conventional welding or brazing techniques. This project examined the… (more)

Subjects/Keywords: Turbine components; Liquid phase diffusion brazing; Braze joints; UCTD

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Miglietti, W. M. (2008). High strength, ductile wide gap braze joints for stationary turbine component repairs. (Doctoral Dissertation). University of Pretoria. Retrieved from http://hdl.handle.net/2263/29403

Chicago Manual of Style (16^th Edition):

Miglietti, Warren Martin. “High strength, ductile wide gap braze joints for stationary turbine component repairs.” 2008. Doctoral Dissertation, University of Pretoria. Accessed December 08, 2019. http://hdl.handle.net/2263/29403.

MLA Handbook (7^th Edition):

Miglietti, Warren Martin. “High strength, ductile wide gap braze joints for stationary turbine component repairs.” 2008. Web. 08 Dec 2019.

Vancouver:

Miglietti WM. High strength, ductile wide gap braze joints for stationary turbine component repairs. [Internet] [Doctoral dissertation]. University of Pretoria; 2008. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/2263/29403.

Council of Science Editors:

Miglietti WM. High strength, ductile wide gap braze joints for stationary turbine component repairs. [Doctoral Dissertation]. University of Pretoria; 2008. Available from: http://hdl.handle.net/2263/29403

Université de Bordeaux I

13. Jacques, Elodie. Assemblage de composites SiCf/SiC de fine épaisseur : recherche d’une composition de joint et d’un procédé associé : Joining of thin SiC/SiC composites for high temperature applications : development of a joint composition and an associated elaboration process.

Degree: Docteur es, Physico-Chimie de la Matière Condensée, 2012, Université de Bordeaux I

URL: http://www.theses.fr/2012BOR14620

►

Les composites à matrice céramique (CMC) SiCf/SiC sont des matériaux envisagés pour le gainage du combustible des futurs réacteurs à neutrons rapides. Une des problématiques… (more)

▼

Les composites à matrice céramique (CMC) SiCf/SiC sont des matériaux envisagés pour le gainage du combustible des futurs réacteurs à neutrons rapides. Une des problématiques de mise en oeuvre concerne leur assemblage et notamment la fermeture de ces gaines contenant le combustible. A l'heure actuelle, aucune composition de joint d'assemblage suffisamment réfractaire n'est mentionnée dans la littérature. Les objectifs de cette étude sont : (1) la recherche d'un matériau d'assemblage et du procédé associé répondant aux contraintes de mise en oeuvre et de fonctionnement, (2) la validation d'un procédé "nucléarisable" de chauffage localisé et rapide afin de ne pas dégrader le composite lors de l'assemblage et (3) la définition de tests mécaniques pour caractériser ces assemblages. Après une étude bibliographique approfondie des systèmes d'assemblage potentiels et la sélection d'une composition à travers des travaux expérimentaux exploratoires par frittage flash, la solution proposée est de réaliser un brasage à partir d'une composition mixte de disiliciure métallique (MSi2) et de carbure de silicium (SiC). Le choix du brasage a nécessité une étude de mouillabilité et de cinétique d'étalement de la brasure en prenant en compte les aspects réactifs de celle-ci sur le carbure de silicium. Différents procédés de chauffage localisé de la brasure tels que le laser CO2, les micro-ondes ou le chauffage inductif haute fréquence ont été testés. La faisabilité de différents procédés d'élaboration du joint a été montrée, notamment par dépôt physique en phase vapeur (PVD), par projection plasma et par enduction de suspensions de poudres. Un essai de flexion 4-points a également été défini afin d'évaluer la résistance mécanique des assemblage.

The present work is part of the Fourth Generation Fast Reactors program. One of the key issues is the joining of the SiCf/SiC ceramic matrix composites (CMC) to seal the combustible cladding. At the present time, no chemical composition as a joint is refractive enough to face the expected operating temperatures. The aimes of this study are the following : (1) the identification of a joining composition and its associated elaboration process answering the specifications, (2) the validation of a local and fast heating process and (3) the definition of mechanical tests to caracterise these joinings. We describe the methodology and the results for joining SiC and SiCf/SiC substrates at solid and liquid state using metallic silicides. Joint integrity and joint strength can be improved by adding small SiC particles to the silicides powders. Chemical reactivity, wettability tests and thermo-mechanical properties analysis have been carried out on the joints. Cross sections of the assembly were prepared to study the joint/substrate chemical bonding, the cracking and the crack deflection in the vicinity of the interface. Also, one of the challenge consists in using a local heating at a high temperature (around 1800°C) for a short time to avoid the degradation of the composite structure. The assemblies…

Advisors/Committee Members: Le Petitcorps, Yann (thesis director), Maillé, Laurence (thesis director).

Subjects/Keywords: SiC; Brasage; Chauffage localisé; SiC; Brazing; Local heating

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jacques, E. (2012). Assemblage de composites SiCf/SiC de fine épaisseur : recherche d’une composition de joint et d’un procédé associé : Joining of thin SiC/SiC composites for high temperature applications : development of a joint composition and an associated elaboration process. (Doctoral Dissertation). Université de Bordeaux I. Retrieved from http://www.theses.fr/2012BOR14620

Chicago Manual of Style (16^th Edition):

Jacques, Elodie. “Assemblage de composites SiCf/SiC de fine épaisseur : recherche d’une composition de joint et d’un procédé associé : Joining of thin SiC/SiC composites for high temperature applications : development of a joint composition and an associated elaboration process.” 2012. Doctoral Dissertation, Université de Bordeaux I. Accessed December 08, 2019. http://www.theses.fr/2012BOR14620.

MLA Handbook (7^th Edition):

Jacques, Elodie. “Assemblage de composites SiCf/SiC de fine épaisseur : recherche d’une composition de joint et d’un procédé associé : Joining of thin SiC/SiC composites for high temperature applications : development of a joint composition and an associated elaboration process.” 2012. Web. 08 Dec 2019.

Vancouver:

Jacques E. Assemblage de composites SiCf/SiC de fine épaisseur : recherche d’une composition de joint et d’un procédé associé : Joining of thin SiC/SiC composites for high temperature applications : development of a joint composition and an associated elaboration process. [Internet] [Doctoral dissertation]. Université de Bordeaux I; 2012. [cited 2019 Dec 08]. Available from: http://www.theses.fr/2012BOR14620.

Council of Science Editors:

Jacques E. Assemblage de composites SiCf/SiC de fine épaisseur : recherche d’une composition de joint et d’un procédé associé : Joining of thin SiC/SiC composites for high temperature applications : development of a joint composition and an associated elaboration process. [Doctoral Dissertation]. Université de Bordeaux I; 2012. Available from: http://www.theses.fr/2012BOR14620

University of Pretoria

14. [No author]. High strength, ductile wide gap braze joints for stationary turbine component repairs .

Degree: 2008, University of Pretoria

URL: http://upetd.up.ac.za/thesis/available/etd-11112008-094325/

► Wide cracks in land-based Ni- or Co-base superalloy turbine components are difficult to repair successfully using conventional welding or brazing techniques. This project examined the… (more)

Subjects/Keywords: Turbine components; Liquid phase diffusion brazing; Braze joints; UCTD

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

author], [. (2008). High strength, ductile wide gap braze joints for stationary turbine component repairs . (Doctoral Dissertation). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-11112008-094325/

Chicago Manual of Style (16^th Edition):

author], [No. “High strength, ductile wide gap braze joints for stationary turbine component repairs .” 2008. Doctoral Dissertation, University of Pretoria. Accessed December 08, 2019. http://upetd.up.ac.za/thesis/available/etd-11112008-094325/.

MLA Handbook (7^th Edition):

author], [No. “High strength, ductile wide gap braze joints for stationary turbine component repairs .” 2008. Web. 08 Dec 2019.

Vancouver:

author] [. High strength, ductile wide gap braze joints for stationary turbine component repairs . [Internet] [Doctoral dissertation]. University of Pretoria; 2008. [cited 2019 Dec 08]. Available from: http://upetd.up.ac.za/thesis/available/etd-11112008-094325/.

Council of Science Editors:

author] [. High strength, ductile wide gap braze joints for stationary turbine component repairs . [Doctoral Dissertation]. University of Pretoria; 2008. Available from: http://upetd.up.ac.za/thesis/available/etd-11112008-094325/

15. Le Coadou, Cécile. Caractérisation de films de zircone yttriée et développement d’un procédé de brasage avec du TA6V pour des applications biomédicales : Characterization of yttria-stabilized zirconia foils and development of a brazing process with TA6V for biomedical applications.

Degree: Docteur es, Matériaux, mécanique, génie civil, électrochimie, 2015, Grenoble Alpes

URL: http://www.theses.fr/2015GREAI041

►

Les maladies neurodégénératives sont en forte progression dans nos sociétés, mais elles sont également mieux connues et mieux soignées. Par exemple, la stimulation cérébrale profonde… (more)

▼

Les maladies neurodégénératives sont en forte progression dans nos sociétés, mais elles sont également mieux connues et mieux soignées. Par exemple, la stimulation cérébrale profonde est de nos jours utilisée pour lutter contre des maladies comme la maladie de Parkinson. Pour cela, un boitier semblable à celui d'un pacemaker, placé sous la clavicule, est habituellement utilisé pour délivrer des impulsions électriques dans des zones spécifiques du cerveau grâce à des électrodes. Afin d'éviter certaines complications, un boitier ultrafin a été imaginé. Il peut être placé directement au niveau du crâne, au plus proche de la zone à traiter. Les matériaux composant ce boitier doivent présenter certaines caractéristiques. Nous avons choisi de travailler avec des feuilles de TA6V et de zircone yttriée et avons réalisé un assemblage hermétique par l'obtention d'une brasure fine en Ti2Ni.Les feuilles de zircone yttriée présentent des propriétés remarquables mais elles sont notoirement dégradées par un vieillissement hydrothermal. Une étude en vieillissement accéléré a été réalisée sur les feuilles de zircone telles que reçues mais également dans des conditions proches de l'utilisation. Le vieillissement mesuré est suffisamment limité pour envisager une utilisation in vivo, avec cependant une réserve concernant les zircones sous-stœchiométriques. Enfin, le profil de vieillissement et sa vitesse de progression ont pu être précisés.L'assemblage TA6V-zircone a été réalisé par brasage réactif in situ via l'apport initial en nickel pur et la création d'un joint de brasage en Ti2Ni. Le système TA6V-Ni-ZrO2 met en jeu plusieurs phénomènes, que nous avons cherché à déconvoluer : diffusion (solide et liquide), formation et croissance d'intermétalliques et réactions d'oxydo-réduction. La croissance des intermétalliques à partir du couple TA6V-Ni a été particulièrement étudiée. Cela a permis de relier certains événements à la température et de préciser les vitesses de croissance du Ti2Ni (selon son état physique). Grâce à l'ensemble des résultats, un procédé de brasage métal-céramique adapté aux matériaux ultrafins a été d'identifié et réalisé sur système avec succès.

Neurodegenerative diseases are increasingly present in our society but they are also better known and treated. For example, deep brain stimulation is nowadays used to treat diseases such as Parkinson disease. For this purpose, a pacemaker-like device localized in the infraclavicular region is commonly used to deliver electrical pulses in concerned area of the brain thanks to electrodes. In order to avoid some complications, an ultrathin housing was designed. It could be directly implanted under the scalp, close to the area to be treated. Materials of the housing have to be display some features. TA6V, yttria-stabilized zirconia sheets and a hermetic brazing with a Ti2Ni joint were selected to develop this housing.Yttria-stabilized zirconia sheets have remarkable properties but they undergo a degradation caused by hydrothermal aging. An accelerated aging study was done on…

Advisors/Committee Members: Simonato, Jean-Pierre (thesis director).

Subjects/Keywords: Zircone; Brasage; Biocompatibilité; Herméticité; Diffusion; Zirconia; Brazing; Biocompatibility; Hermeticity; Diffusion; 620

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Le Coadou, C. (2015). Caractérisation de films de zircone yttriée et développement d’un procédé de brasage avec du TA6V pour des applications biomédicales : Characterization of yttria-stabilized zirconia foils and development of a brazing process with TA6V for biomedical applications. (Doctoral Dissertation). Grenoble Alpes. Retrieved from http://www.theses.fr/2015GREAI041

Chicago Manual of Style (16^th Edition):

Le Coadou, Cécile. “Caractérisation de films de zircone yttriée et développement d’un procédé de brasage avec du TA6V pour des applications biomédicales : Characterization of yttria-stabilized zirconia foils and development of a brazing process with TA6V for biomedical applications.” 2015. Doctoral Dissertation, Grenoble Alpes. Accessed December 08, 2019. http://www.theses.fr/2015GREAI041.

MLA Handbook (7^th Edition):

Le Coadou, Cécile. “Caractérisation de films de zircone yttriée et développement d’un procédé de brasage avec du TA6V pour des applications biomédicales : Characterization of yttria-stabilized zirconia foils and development of a brazing process with TA6V for biomedical applications.” 2015. Web. 08 Dec 2019.

Vancouver:

Le Coadou C. Caractérisation de films de zircone yttriée et développement d’un procédé de brasage avec du TA6V pour des applications biomédicales : Characterization of yttria-stabilized zirconia foils and development of a brazing process with TA6V for biomedical applications. [Internet] [Doctoral dissertation]. Grenoble Alpes; 2015. [cited 2019 Dec 08]. Available from: http://www.theses.fr/2015GREAI041.

Council of Science Editors:

Le Coadou C. Caractérisation de films de zircone yttriée et développement d’un procédé de brasage avec du TA6V pour des applications biomédicales : Characterization of yttria-stabilized zirconia foils and development of a brazing process with TA6V for biomedical applications. [Doctoral Dissertation]. Grenoble Alpes; 2015. Available from: http://www.theses.fr/2015GREAI041

Mississippi State University

16. Puzz, Travis Earl. DEVELOPMENT OF A TUNGSTEN CARBIDE-NICKEL BRAZE ALLOY HARDFACE COATING.

Degree: MS, Mechanical Engineering, 2008, Mississippi State University

URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-11082007-141548/ ;

► If an expensive part such a turbine blade or high quality tool needed to be refurbished instead of discarded, the part would have be coated… (more)

Subjects/Keywords: infiltration; carbide; Hardfacing; brazing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Puzz, T. E. (2008). DEVELOPMENT OF A TUNGSTEN CARBIDE-NICKEL BRAZE ALLOY HARDFACE COATING. (Masters Thesis). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-11082007-141548/ ;

Chicago Manual of Style (16^th Edition):

Puzz, Travis Earl. “DEVELOPMENT OF A TUNGSTEN CARBIDE-NICKEL BRAZE ALLOY HARDFACE COATING.” 2008. Masters Thesis, Mississippi State University. Accessed December 08, 2019. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11082007-141548/ ;.

MLA Handbook (7^th Edition):

Puzz, Travis Earl. “DEVELOPMENT OF A TUNGSTEN CARBIDE-NICKEL BRAZE ALLOY HARDFACE COATING.” 2008. Web. 08 Dec 2019.

Vancouver:

Puzz TE. DEVELOPMENT OF A TUNGSTEN CARBIDE-NICKEL BRAZE ALLOY HARDFACE COATING. [Internet] [Masters thesis]. Mississippi State University; 2008. [cited 2019 Dec 08]. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-11082007-141548/ ;.

Council of Science Editors:

Puzz TE. DEVELOPMENT OF A TUNGSTEN CARBIDE-NICKEL BRAZE ALLOY HARDFACE COATING. [Masters Thesis]. Mississippi State University; 2008. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-11082007-141548/ ;

Colorado School of Mines

17. Gao, Minrui. Development of new high entropy alloys for brazing of Ni-base superalloys.

Degree: MS(M.S.), Metallurgical and Materials Engineering, 2017, Colorado School of Mines

URL: http://hdl.handle.net/11124/171240

► High entropy alloys (HEAs), also called multi-principal component alloys, are novel alloys containing at least five elements with an atomic percent ranging between 5% and… (more)

▼ High entropy alloys (HEAs), also called multi-principal component alloys, are novel alloys containing at least five elements with an atomic percent ranging between 5% and 35%. HEAs have attracted attention due to their unique properties such as high strength, good ductility, and high resistance to corrosion and wear. However, applications of HEAs still need to be explored. In this study, a new HEA filler metal (Fe5Co20Ni20Mn35Cu20) was designed for brazing of Inconel 600 alloy. Thermodynamic simulation, using Thermo-Calc software, was performed to design the composition of the HEA. A face-centered cubic (FCC) crystal structure was achieved that balanced strength, ductility and a melting range lower than the solidus temperature of Inconel 600. Differential thermal analysis (DTA) confirmed that the as-cast HEA had a solidus temperature of 1080 °C and a liquidus temperature of 1150 °C, which were in good agreement with the melting range predicted by Thermo-Calc using the newly published “HEA 1.0” database. Only a 10 °C discrepancy was identified. Through wetting angle tests at various temperatures, the optimum brazing temperature for this HEA was determined to be 1200 °C. The as-cast HEA button was cold rolled into foils with different thickness ranging from 50 to 300 µm for brazing tests. The brazing time was varied from 15 to 120 min. Effect of brazing time and foil thickness on the shear strength of the brazed joint were evaluated. A maximum shear strength of 530 MPa was achieved with a brazing time of 90 min and a foil thickness of 300 µm. With a fixed brazing time of 90 min, the shear strength reduced continuously to a minimum value of 302 MPa with decreasing foil thickness. Microscale digital image correlation (DIC) was used to map localized strain distribution at the brazed joints during the shear test. Moreover, metallurgical characterizations including optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) were carried out at the interface to explain the observed mechanical behaviors. In addition, interface reactions between as-cast, oxidized FeCoNi(AlSi)0.2 HEA and aluminum melt at 700 °C were investigated to evaluate the alloy’s potential for use as mold material for casting of aluminum alloys. It was found that, compared with Fe, the as-cast and oxidized HEA have a thinner reaction products layer. Oxidized HEA had the thinnest layer. Pre-oxidation treatment of HEA is an effective and economical way to improve the mold material’s resistance to aluminum melt attack. Advisors/Committee Members: Yu, Zhenzhen (advisor), Liu, Stephen (committee member), Kaufman, Michael J. (committee member).

Subjects/Keywords: DIC; Ni-base superalloy; Brazing; Shear strength; High entropy alloy

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gao, M. (2017). Development of new high entropy alloys for brazing of Ni-base superalloys. (Masters Thesis). Colorado School of Mines. Retrieved from http://hdl.handle.net/11124/171240

Chicago Manual of Style (16^th Edition):

Gao, Minrui. “Development of new high entropy alloys for brazing of Ni-base superalloys.” 2017. Masters Thesis, Colorado School of Mines. Accessed December 08, 2019. http://hdl.handle.net/11124/171240.

MLA Handbook (7^th Edition):

Gao, Minrui. “Development of new high entropy alloys for brazing of Ni-base superalloys.” 2017. Web. 08 Dec 2019.

Vancouver:

Gao M. Development of new high entropy alloys for brazing of Ni-base superalloys. [Internet] [Masters thesis]. Colorado School of Mines; 2017. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/11124/171240.

Council of Science Editors:

Gao M. Development of new high entropy alloys for brazing of Ni-base superalloys. [Masters Thesis]. Colorado School of Mines; 2017. Available from: http://hdl.handle.net/11124/171240

University of Waterloo

18. Han, Kyu Bin. A Component-Level Study on the Effect of Warm Forming on Formability and Springback of Aluminum Alloy Brazing Sheet.

Degree: 2018, University of Waterloo

URL: http://hdl.handle.net/10012/12937

► This thesis investigates the effect of warm forming (up to 350⁰C) on the formability and springback behavior of AA3003/AA4045 brazing sheet (0.2 mm gauge) for… (more)

▼ This thesis investigates the effect of warm forming (up to 350⁰C) on the formability and springback behavior of AA3003/AA4045 brazing sheet (0.2 mm gauge) for three temper conditions: O-, H22- and H24-tempers. The geometry under study is referred as a surrogate heat-exchanger component (SHC) and contains complex features found on commercial automotive thermal management systems. The hardening behavior of the material was modeled with the well-known extended Nadai phenomenological model, which captured the thermal softening, strain rate sensitivity and negative hardening behavior at elevated temperatures. Tensile simulations were performed and compared to the experimental results, demonstrating good agreement. Four tooling configurations that consider different die designs, blank geometries, and forming method were developed to improve the formability and wrinkling behavior associated with the aggressive geometries found in the SHC. Finite element models were used to predict the results of the tooling configurations in the development process. The tooling configuration with the best formability, wrinkling behavior and process efficiency was selected. Formability improvement was not clearly observed with the warm forming process. However, preliminary observations show that the reduction in springback using warm forming was very effective. With the selected tooling configuration, more in-depth springback characterization was completed for a wide range of forming process parameters such as: temperature, punch load, sheet direction, and holding time. At room temperature, H22- and H24-tempers exhibited significantly higher springback compared to O-temper, which can be attributed to the higher strength of the harder tempers. The effect of warm forming on springback was negligible for the O-temper but significant for harder tempers. For H24, a springback reduction up to 88% was observed at 325⁰C relative to room temperature at high punch load condition. Numerical simulations were performed to predict the springback and were compared to the experiments. The simulations considered several different factors that affect springback behavior such as through-thickness compression, thermal expansion and bi-metallic strength gradient. The simulation results qualitatively captured the effect of temperature on springback in the experiments with moderate quantitative agreement. The largest discrepancy was associated with an inability of the model to accurately predict the effect of punch load on springback. Overall, this study has served to characterize warm forming technology for a potential commercial application in the automotive heat exchanger industry. It was shown that the warm forming process did not offer significant benefit in terms of formability and wrinkling behavior; tooling optimization was more effective for formability and wrinkle control. However, warm forming was very beneficial in reducing springback, thus adoption of this technology should be very useful in applications where part dimensional accuracy…

Subjects/Keywords: Springback; Warm Forming; Aluminum Alloy; Brazing Sheet; Formability

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Han, K. B. (2018). A Component-Level Study on the Effect of Warm Forming on Formability and Springback of Aluminum Alloy Brazing Sheet. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/12937

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Han, Kyu Bin. “A Component-Level Study on the Effect of Warm Forming on Formability and Springback of Aluminum Alloy Brazing Sheet.” 2018. Thesis, University of Waterloo. Accessed December 08, 2019. http://hdl.handle.net/10012/12937.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Han, Kyu Bin. “A Component-Level Study on the Effect of Warm Forming on Formability and Springback of Aluminum Alloy Brazing Sheet.” 2018. Web. 08 Dec 2019.

Vancouver:

Han KB. A Component-Level Study on the Effect of Warm Forming on Formability and Springback of Aluminum Alloy Brazing Sheet. [Internet] [Thesis]. University of Waterloo; 2018. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/10012/12937.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Han KB. A Component-Level Study on the Effect of Warm Forming on Formability and Springback of Aluminum Alloy Brazing Sheet. [Thesis]. University of Waterloo; 2018. Available from: http://hdl.handle.net/10012/12937

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo

19. Tadgell, Colin. Investigation of Plating Process Variability and Mechanism for Oxide Disruption in a Ni-Modified Fluxless Brazing Process for Aluminum Alloys.

Degree: 2015, University of Waterloo

URL: http://hdl.handle.net/10012/9072

► The effect of surface oxides and the presence of ternary constituents were examined using differential scanning calorimetry (DSC) along with SEM, EDX, and TEM studies… (more)

Subjects/Keywords: Aluminum Alloy; Brazing; Nickel; Thermal Analysis; Differential Scanning Calorimetry; Aluminum Oxide

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tadgell, C. (2015). Investigation of Plating Process Variability and Mechanism for Oxide Disruption in a Ni-Modified Fluxless Brazing Process for Aluminum Alloys. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/9072

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tadgell, Colin. “Investigation of Plating Process Variability and Mechanism for Oxide Disruption in a Ni-Modified Fluxless Brazing Process for Aluminum Alloys.” 2015. Thesis, University of Waterloo. Accessed December 08, 2019. http://hdl.handle.net/10012/9072.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tadgell, Colin. “Investigation of Plating Process Variability and Mechanism for Oxide Disruption in a Ni-Modified Fluxless Brazing Process for Aluminum Alloys.” 2015. Web. 08 Dec 2019.

Vancouver:

Tadgell C. Investigation of Plating Process Variability and Mechanism for Oxide Disruption in a Ni-Modified Fluxless Brazing Process for Aluminum Alloys. [Internet] [Thesis]. University of Waterloo; 2015. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/10012/9072.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tadgell C. Investigation of Plating Process Variability and Mechanism for Oxide Disruption in a Ni-Modified Fluxless Brazing Process for Aluminum Alloys. [Thesis]. University of Waterloo; 2015. Available from: http://hdl.handle.net/10012/9072

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

20. Akdeniz, Mahmut Vedat. Rapid solidification of zinc based alloys.

Degree: PhD, 1989, Open University

URL: http://oro.open.ac.uk/57270/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329102

► This work presents an investigation into two areas : the development of zinc based brazing alloys for the joining of copper produced by the rapid… (more)

▼ This work presents an investigation into two areas : the development of zinc based brazing alloys for the joining of copper produced by the rapid solidification technique; the study of the development of microstructures in rapidly solidified dilute zinc alloys. A new model has been proposed, based on the present experimental results and the available data from the literature, to account for the ribbon formation mechanism. Within this model ribbon formation in melt spinning is mainly determined by the behaviour of the viscosity in undercooled melts. It has been shown that, contrary to previous studies, the present model can be used to predict the ribbon thickness of both crystalline and amorphous alloys, and the agreement with the measured values is excellent. The development of microstructures in dilute zinc alloys during rapid solidification has been studied by the deliberate addition of impurity elements. Significant differences in structures are observed between the dilute zinc alloys and high purity zinc. The high purity zinc exhibits a strong preferred orientation with the basal plane parallel to the ribbon surface. The severity of this texture markedly reduces with the formation of cellular substructures in dilute zinc alloys. The morphology of the cells depends on the type of impurity elements present. The presence of impurity elements which expand on solidification leads to the development of an eutectic-like structure consisting of regular lamellae. This requires reorientation of the basal plane and instability of the solid liquid interface during solidification. The instability conditions of the planar solid liquid interface during rapid solidification of these alloys have been examined by using the morphological stability criterion. A possible mechanism which accounts for the formation of unusual structures observed in rapidly solidified dilute zinc alloys has been proposed. The observed variety of microstructures of binary Zn-Mg alloys, and the structural transitions across the ribbon thickness have been reported. Comparisons are made between as-cast and rapidly solidified materials and the resulting structures have been described using a growth rate composition map. Rapidly solidified eutectic and hypereutectic alloys show a tendency to form an amorphous phase. A total of more than 50 zinc based alloys have been investigated for the development of brazing filler metal. Alloys have been examined, and their compositions optimized, in terms of their spreading and wetting abilities and brazing performances to obtain a suitable candidate. Based on the experimental results it has been suggested that Zn-Mg alloys could be used for the joining of copper. They exhibit a lower surface tension, a lower density and comparable mechanical properties to high temperature high strength silver based brazing alloys.

Subjects/Keywords: 669; Brazing alloysJoining of copper

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Akdeniz, M. V. (1989). Rapid solidification of zinc based alloys. (Doctoral Dissertation). Open University. Retrieved from http://oro.open.ac.uk/57270/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329102

Chicago Manual of Style (16^th Edition):

Akdeniz, Mahmut Vedat. “Rapid solidification of zinc based alloys.” 1989. Doctoral Dissertation, Open University. Accessed December 08, 2019. http://oro.open.ac.uk/57270/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329102.

MLA Handbook (7^th Edition):

Akdeniz, Mahmut Vedat. “Rapid solidification of zinc based alloys.” 1989. Web. 08 Dec 2019.

Vancouver:

Akdeniz MV. Rapid solidification of zinc based alloys. [Internet] [Doctoral dissertation]. Open University; 1989. [cited 2019 Dec 08]. Available from: http://oro.open.ac.uk/57270/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329102.

Council of Science Editors:

Akdeniz MV. Rapid solidification of zinc based alloys. [Doctoral Dissertation]. Open University; 1989. Available from: http://oro.open.ac.uk/57270/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329102

Brno University of Technology

21. Rimko, Marcel. Studium vlastností tenkých kovových spojů korundové keramiky a korozivzdorné oceli .

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/81943

► Táto bakalárska práca pojednáva o spojoch medzi kovom a keramikou so zameraním na spájkovanie. Teoretická časť sa venuje základom spájkovania kovu a keramiky. Experimentálna časť… (more)

Subjects/Keywords: Aktívna spájka; spájanie; kov; keramika; Active braze; brazing; metal; ceramics

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rimko, M. (2018). Studium vlastností tenkých kovových spojů korundové keramiky a korozivzdorné oceli . (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/81943

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rimko, Marcel. “Studium vlastností tenkých kovových spojů korundové keramiky a korozivzdorné oceli .” 2018. Thesis, Brno University of Technology. Accessed December 08, 2019. http://hdl.handle.net/11012/81943.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rimko, Marcel. “Studium vlastností tenkých kovových spojů korundové keramiky a korozivzdorné oceli .” 2018. Web. 08 Dec 2019.

Vancouver:

Rimko M. Studium vlastností tenkých kovových spojů korundové keramiky a korozivzdorné oceli . [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/11012/81943.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rimko M. Studium vlastností tenkých kovových spojů korundové keramiky a korozivzdorné oceli . [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/81943

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

22. Podstavek, Michal. Laserové pájení v automobilním průmyslu .

Degree: 2014, Brno University of Technology

URL: http://hdl.handle.net/11012/31913

► Projekt vypracovaný v rámci inženýrského studia oboru M-STG Strojírenská technologie popisuje základní metody spojování v automobilovém průmyslu. Dále se zabývá optimalizací pájecího procesu na zadním… (more)

Subjects/Keywords: svařování; pájení; zadní víko; karoserie; welding; brazing; back cover; car body

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Podstavek, M. (2014). Laserové pájení v automobilním průmyslu . (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/31913

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Podstavek, Michal. “Laserové pájení v automobilním průmyslu .” 2014. Thesis, Brno University of Technology. Accessed December 08, 2019. http://hdl.handle.net/11012/31913.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Podstavek, Michal. “Laserové pájení v automobilním průmyslu .” 2014. Web. 08 Dec 2019.

Vancouver:

Podstavek M. Laserové pájení v automobilním průmyslu . [Internet] [Thesis]. Brno University of Technology; 2014. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/11012/31913.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Podstavek M. Laserové pájení v automobilním průmyslu . [Thesis]. Brno University of Technology; 2014. Available from: http://hdl.handle.net/11012/31913

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

23. Janda, Ondřej. Využití pájek s vyšší teplotou tavení u hybridních integrovaných obvodů .

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/81592

► Bakalářská práce seznamuje s problematikou pájení, vysvětluje základní děje a principy ovlivňující tvrdé pájení a poukazuje na jejich pozitivní i negativní projevy. Současně se snaží… (more)

Subjects/Keywords: Tlustá vrstva; tvrdé pájení; odsmáčení tlusté vrstvy; Thick film; brazing; leaching

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Janda, O. (2018). Využití pájek s vyšší teplotou tavení u hybridních integrovaných obvodů . (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/81592

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Janda, Ondřej. “Využití pájek s vyšší teplotou tavení u hybridních integrovaných obvodů .” 2018. Thesis, Brno University of Technology. Accessed December 08, 2019. http://hdl.handle.net/11012/81592.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Janda, Ondřej. “Využití pájek s vyšší teplotou tavení u hybridních integrovaných obvodů .” 2018. Web. 08 Dec 2019.

Vancouver:

Janda O. Využití pájek s vyšší teplotou tavení u hybridních integrovaných obvodů . [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/11012/81592.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Janda O. Využití pájek s vyšší teplotou tavení u hybridních integrovaných obvodů . [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/81592

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Beaubier, Benoit. Étude physique et modélisation numérique de procédés d'assemblage par soudo-brasage de sous-ensembles en carrosserie automobile : Physical study and numerical simulation of welding brazing processes in the automotive industry.

Degree: Docteur es, Mécanique Génie mécanique Génie civil, 2014, Université Pierre et Marie Curie – Paris VI

URL: http://www.theses.fr/2014PA066060

►

Cette thèse traite de la prise en compte de l'impact des procédés d'assemblage thermomécanique sur la géométrie de la caisse en blanc lors de la… (more)

▼

Cette thèse traite de la prise en compte de l'impact des procédés d'assemblage thermomécanique sur la géométrie de la caisse en blanc lors de la phase de conception d'un véhicule, chez PSA Peugeot-Citroën. Pour cela, on souhaite développer un outil de prévision des déformations induites par les procédés de soudo-brage - plasmatron et laser - lors de l'assemblage du pavillon sur le côté de la caisse. Les pièces - de dimensions métriques - sont composées de tôles fines d'épaisseur 0,67 mm en acier XES. Afin de réaliser une simulation numérique du procédé, il est nécessaire d'identifier un certain nombre de modèles, objets de cette thèse. Dans un premier temps des essais de soudo-brasage en laboratoire ont été réalisés afin de définir les domaines de validité de l'étude, d'identifier des modèles de sources de chaleur, et de déterminer les coefficients d'échange thermique avec l'extérieur. Une étude spécifique d'identification des lois de comportement des matériaux mis en jeu, sur toute la gamme de température, a également été réalisée. Pour cela, une méthode de mesure de champs par corrélation d'images numériques à haute température a été développée, qui a permis d'identifier complètement les paramètres de la loi de comportement de l'acier XES. Pour finir, de façon à réaliser la validation de la simulation numérique, ces travaux de thèse ont été l'occasion de développer une nouvelle méthode de calibration pour la stéréocorrélation d'images basée sur la connaissance a priori de la géométrie de l'objet observé, en considérant sa forme théorique via son modèle CAO. Cette méthode est tout particulièrement adaptée aux dimensions des structures étudiées ici.

This study is about the impact of thermo-mechanical assembly processes of metal sheets, in the automotive industry context. The aim is to predict thermally induced deformations by using a numerical tool. We are particularly interested in Plasmatron and laser brazing processes that are used to assemble an automotive roof and the body side of the vehicle. Parts are made from 0,67 mm thickness XES thin metal sheet of about one meter length. To validate such complex non-linear numerical simulations with experimental observations, it is necessary to develop well-controlled and highly instrumented tests. In a first step, experimental welding brazing tests are carried out in order to identify validity domains, heat source model and thermal coefficients of exchange. In a second step, high temperature tension tests are performed to identify the behaviour of each material. These tests are instrumented with a new DIC protocol in order to measure displacement fields from 20°C to 1000°C. Finally, in order to validate the thermo-mechanical simulation, in-situ 3D Digital Image Correlation (stereo-correlation) measurements were performed during the welding-brazing assembly. For this purpose and due to the geometry of the involved parts, a new calibration method, based on the CAD part geometry has been developed.

Advisors/Committee Members: Billardon, René (thesis director), Laverhne-Taillard, Karine (thesis director).

Subjects/Keywords: Identification des propriétés à chaud; Soudo-brasage laser; Soudo-brasage Plasmatron; Acier XES; Corrélation d'images numériques à chaud; Stéréocorrélation d'images; Laser brazing process; Plasmatron brazing process; 629.222

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Beaubier, B. (2014). Étude physique et modélisation numérique de procédés d'assemblage par soudo-brasage de sous-ensembles en carrosserie automobile : Physical study and numerical simulation of welding brazing processes in the automotive industry. (Doctoral Dissertation). Université Pierre et Marie Curie – Paris VI. Retrieved from http://www.theses.fr/2014PA066060

Chicago Manual of Style (16^th Edition):

Beaubier, Benoit. “Étude physique et modélisation numérique de procédés d'assemblage par soudo-brasage de sous-ensembles en carrosserie automobile : Physical study and numerical simulation of welding brazing processes in the automotive industry.” 2014. Doctoral Dissertation, Université Pierre et Marie Curie – Paris VI. Accessed December 08, 2019. http://www.theses.fr/2014PA066060.

MLA Handbook (7^th Edition):

Beaubier, Benoit. “Étude physique et modélisation numérique de procédés d'assemblage par soudo-brasage de sous-ensembles en carrosserie automobile : Physical study and numerical simulation of welding brazing processes in the automotive industry.” 2014. Web. 08 Dec 2019.

Vancouver:

Beaubier B. Étude physique et modélisation numérique de procédés d'assemblage par soudo-brasage de sous-ensembles en carrosserie automobile : Physical study and numerical simulation of welding brazing processes in the automotive industry. [Internet] [Doctoral dissertation]. Université Pierre et Marie Curie – Paris VI; 2014. [cited 2019 Dec 08]. Available from: http://www.theses.fr/2014PA066060.

Council of Science Editors:

Beaubier B. Étude physique et modélisation numérique de procédés d'assemblage par soudo-brasage de sous-ensembles en carrosserie automobile : Physical study and numerical simulation of welding brazing processes in the automotive industry. [Doctoral Dissertation]. Université Pierre et Marie Curie – Paris VI; 2014. Available from: http://www.theses.fr/2014PA066060

AUT University

25. Pearce, Benjamin. The Design of a Magnetic Component for Induction Brazing .

Degree: AUT University

URL: http://hdl.handle.net/10292/12598

► Within the mining industry, jaws are used for drilling in large quantities. Slots are milled in each jaw, into which tungsten-carbide teeth are fitted and… (more)

Subjects/Keywords: Induction Brazing; Brazing; Induction Heating; Magnetic Component; Magnetic Field Concentration

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pearce, B. (n.d.). The Design of a Magnetic Component for Induction Brazing . (Thesis). AUT University. Retrieved from http://hdl.handle.net/10292/12598

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pearce, Benjamin. “The Design of a Magnetic Component for Induction Brazing .” Thesis, AUT University. Accessed December 08, 2019. http://hdl.handle.net/10292/12598.

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pearce, Benjamin. “The Design of a Magnetic Component for Induction Brazing .” Web. 08 Dec 2019.

Note: this citation may be lacking information needed for this citation format:
No year of publication.

Vancouver:

Pearce B. The Design of a Magnetic Component for Induction Brazing . [Internet] [Thesis]. AUT University; [cited 2019 Dec 08]. Available from: http://hdl.handle.net/10292/12598.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

Council of Science Editors:

Pearce B. The Design of a Magnetic Component for Induction Brazing . [Thesis]. AUT University; Available from: http://hdl.handle.net/10292/12598

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

University of Kentucky

26. Dong, Fangxiao. KINETICS OF WEDGE-TEE JOINT FORMATION DURING BRAZING OF AN ALUMINUM ALLOY UNDER CONTROLLED ATMOSPHERE.

Degree: 2013, University of Kentucky

URL: http://uknowledge.uky.edu/me_etds/23

► This work involves investigation of the kinetics data of a joint formation during aluminum alloy brazing. Data was generated by several groups of experiments conducted… (more)

Subjects/Keywords: Aluminum Brazing; Kinetics; T-Joint; Background Atmosphere; Capillary Flow; Manufacturing; Other Mechanical Engineering

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dong, F. (2013). KINETICS OF WEDGE-TEE JOINT FORMATION DURING BRAZING OF AN ALUMINUM ALLOY UNDER CONTROLLED ATMOSPHERE. (Masters Thesis). University of Kentucky. Retrieved from http://uknowledge.uky.edu/me_etds/23

Chicago Manual of Style (16^th Edition):

Dong, Fangxiao. “KINETICS OF WEDGE-TEE JOINT FORMATION DURING BRAZING OF AN ALUMINUM ALLOY UNDER CONTROLLED ATMOSPHERE.” 2013. Masters Thesis, University of Kentucky. Accessed December 08, 2019. http://uknowledge.uky.edu/me_etds/23.

MLA Handbook (7^th Edition):

Dong, Fangxiao. “KINETICS OF WEDGE-TEE JOINT FORMATION DURING BRAZING OF AN ALUMINUM ALLOY UNDER CONTROLLED ATMOSPHERE.” 2013. Web. 08 Dec 2019.

Vancouver:

Dong F. KINETICS OF WEDGE-TEE JOINT FORMATION DURING BRAZING OF AN ALUMINUM ALLOY UNDER CONTROLLED ATMOSPHERE. [Internet] [Masters thesis]. University of Kentucky; 2013. [cited 2019 Dec 08]. Available from: http://uknowledge.uky.edu/me_etds/23.

Council of Science Editors:

Dong F. KINETICS OF WEDGE-TEE JOINT FORMATION DURING BRAZING OF AN ALUMINUM ALLOY UNDER CONTROLLED ATMOSPHERE. [Masters Thesis]. University of Kentucky; 2013. Available from: http://uknowledge.uky.edu/me_etds/23

27. Valdemir Alves de Oliveira. Avaliação da confiabilidade dos evaporadores automotivos submetidos ao processo de rebrasagem.

Degree: 2011, Universidade de Taubaté

URL: http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=267

►

Esta avaliação buscou validar a técnica de retrabalho utilizada no processo de fabricação de evaporadores automotivos, onde a falha na operação de brasagem e tratamento… (more)

▼

Esta avaliação buscou validar a técnica de retrabalho utilizada no processo de fabricação de evaporadores automotivos, onde a falha na operação de brasagem e tratamento térmico é um dos principais motivos para o alto índice de sucata. A técnica de retrabalho consiste em refazer a operação de brasagem e tratamento térmico nos evaporadores que apresentaram falhas no teste de estanqueidade. Os evaporadores foram submetidos ao processo de rebrasagem em forno de brasagem NOCOLOK e o tratamento superficial em forno de tratamento térmico e avaliados por meio de teste de estanqueidade, utilizando-se gás Hélio (He) à pressão de 16bar e ensaio metalográfico comparativo entre peças produzidas com o ciclo normal de brasagem e tratamento térmico e com o ciclo de rebrasagem, avaliando as modificações nas juntas brasadas. Os resultados obtidos nos 05 experimentos demonstraram que houve modificações significativas nas juntas brasadas após os evaporadores terem sidos submetidos ao processo normal de brasagem, seguido de mais 04 ciclos de rebrasagem e tratamento térmico. Portanto, para a fabricação dos evaporadores automotivos fica recomendado a execução de brasagem e no máximo uma rebrasagem, eliminando a possibilidade de execução de novas rebrasagens.

This evaluation sought the validation of the rework technique used in automotive evaporators manufacturing, where this failure on brazing operation is a main reason to high level of scrap. The rework technique consists in redoing the brazing operation and thermal treatment on evaporators which fail the leak test. The evaporators were subjected to rebrazing process in NOCOLOK furnace and surface treatment in thermal treatment furnace and evaluated through leak test device, using Helium (He) at 16bar of pressure and metallographic test to compare normally produced parts with rebrazing ones, evaluating the structural changes of the material. The results got from 05 experiments made showed that there were significant changes in the brazing joint, after the evaporators being subjected to the normal brazing process, followed by 04 more rebrazing cycles and thermal treatment. Therefore, for the automotive evaporators manufacturing the brazing execution is recommended and at the most a rebrazing, eliminating the possibility of execution of new rebrazing.

Advisors/Committee Members: Carlos Alberto Chaves, José Rubens de Camargo, Cristina de Carvalho Ares Elisei.

Subjects/Keywords: brasagem; retrabalho; estanqueidade; evaporadores; alumínio; brazing; rework; leak; evaporators; aluminum; ENGENHARIA DE MATERIAIS E METALURGICA

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Oliveira, V. A. d. (2011). Avaliação da confiabilidade dos evaporadores automotivos submetidos ao processo de rebrasagem. (Thesis). Universidade de Taubaté. Retrieved from http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=267

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Oliveira, Valdemir Alves de. “Avaliação da confiabilidade dos evaporadores automotivos submetidos ao processo de rebrasagem.” 2011. Thesis, Universidade de Taubaté. Accessed December 08, 2019. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=267.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Oliveira, Valdemir Alves de. “Avaliação da confiabilidade dos evaporadores automotivos submetidos ao processo de rebrasagem.” 2011. Web. 08 Dec 2019.

Vancouver:

Oliveira VAd. Avaliação da confiabilidade dos evaporadores automotivos submetidos ao processo de rebrasagem. [Internet] [Thesis]. Universidade de Taubaté; 2011. [cited 2019 Dec 08]. Available from: http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=267.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Oliveira VAd. Avaliação da confiabilidade dos evaporadores automotivos submetidos ao processo de rebrasagem. [Thesis]. Universidade de Taubaté; 2011. Available from: http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=267

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

28. Silva, João Moreno Vilas Boas de Souza. Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo .

Degree: 2011, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/15581

► Metal/ceramic interfaces using zirconia have dominated the industrial applications in the last decade, due to the high mechanical strength and fracture toughness of zirconia, especially… (more)

Subjects/Keywords: Brasagem; Zircônia; Metalização mecânica; União metal; Cerâmica; Brazing; Zirconia; Mechanical metallization; Metal; Ceramic joining

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Silva, J. M. V. B. d. S. (2011). Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo . (Doctoral Dissertation). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/15581

Chicago Manual of Style (16^th Edition):

Silva, João Moreno Vilas Boas de Souza. “Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo .” 2011. Doctoral Dissertation, Universidade do Rio Grande do Norte. Accessed December 08, 2019. http://repositorio.ufrn.br/handle/123456789/15581.

MLA Handbook (7^th Edition):

Silva, João Moreno Vilas Boas de Souza. “Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo .” 2011. Web. 08 Dec 2019.

Vancouver:

Silva JMVBdS. Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo . [Internet] [Doctoral dissertation]. Universidade do Rio Grande do Norte; 2011. [cited 2019 Dec 08]. Available from: http://repositorio.ufrn.br/handle/123456789/15581.

Council of Science Editors:

Silva JMVBdS. Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo . [Doctoral Dissertation]. Universidade do Rio Grande do Norte; 2011. Available from: http://repositorio.ufrn.br/handle/123456789/15581

Universidade do Rio Grande do Norte

29. Silva, João Moreno Vilas Boas de Souza. Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo .

Degree: 2011, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/15581

► Metal/ceramic interfaces using zirconia have dominated the industrial applications in the last decade, due to the high mechanical strength and fracture toughness of zirconia, especially… (more)

Subjects/Keywords: Brasagem; Zircônia; Metalização mecânica; União metal; Cerâmica; Brazing; Zirconia; Mechanical metallization; Metal; Ceramic joining

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Silva, J. M. V. B. d. S. (2011). Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/15581

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Silva, João Moreno Vilas Boas de Souza. “Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo .” 2011. Thesis, Universidade do Rio Grande do Norte. Accessed December 08, 2019. http://repositorio.ufrn.br/handle/123456789/15581.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Silva, João Moreno Vilas Boas de Souza. “Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo .” 2011. Web. 08 Dec 2019.

Vancouver:

Silva JMVBdS. Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2011. [cited 2019 Dec 08]. Available from: http://repositorio.ufrn.br/handle/123456789/15581.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Silva JMVBdS. Metalização mecânica de ZrO2 com Ti para brasagem ZrO2/Aço com ligas de adição sem metal ativo . [Thesis]. Universidade do Rio Grande do Norte; 2011. Available from: http://repositorio.ufrn.br/handle/123456789/15581

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

30. Ntasi, Argyro-Aikaterini. Development of experimental Ag-based brazing alloys for orthodontic applications.

Degree: 2014, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)

URL: http://hdl.handle.net/10442/hedi/34650

►

Ag based soldering alloys are widely used in the fabrication of orthodontic appliances and always concerned the literature for their potential to release Cu and… (more)

▼

Ag based soldering alloys are widely used in the fabrication of orthodontic appliances and always concerned the literature for their potential to release Cu and Zn through corrosion and/or wear mechanisms. Aim: The development of experimental Ag based brazing alloys free of Cu and Zn.Materials and Methods: Four commercially alloys were selected: Dentaurum Universal silver Soldering, Leone Orthodontic Solder, Nobil Metal Solder and Orthotechnology Silver Solder. The experimental alloys Ag12Ga, Ag10Ga5Sn, Ag20In and Ag7Sn were fabricated in an induction melting machine. 14 disk shape specimens were prepared for each alloy by melting each material in a reducing flame and after metallographic preparation SEM-EDX and XRD analysis was preformed. The hardness was measured employing Vickers testing. The electrochemical properties were evaluated by OCP, PDS, CP and EIS in a NaCl 0.9% and a Ringer’s electrolyte solution with the use of a mini cell system. Immersion testing was performed in the same solutions and the extracts of 4, 7 and 10 weeks were imposed to ICP analysis for the evaluation of ions concentrations. Hardness, OCP, Icorr and Ecorr were statistically analyzed by one way ANOVA and Holm-Sidak multiple comparison procedure (a=0.05). The results of the ICP were statistically analyzed using two way ANOVA and Holm-Sidak multiple comparison procedure (a= 0.05).Results: Commercially alloys belong to the Ag-Zn-Cu ternary system and are consisted of a Ag rich and a Cu rich FCC phase. AgGa and AgGaSn are two phase alloys whereas AgIn and AgSn single phase. All alloys demonstrated similar melting temperature range. The commercially alloys demonstrated higher hardness values. The OCP and Ecorr values were higher for the experimental alloys showing greater resistance to oxidation, whereas the Icorr magnitudes were lower indicating lower reaction kinetics. All alloys tested formed oxides and chlorides, though in the case of the commercially alloys a steady surface layer could not be formed and any salt depositions were vulnerable to pitting corrosion phenomena. Immersion testing revealed the release of Cu and Zn ions from the commercially alloys and Ga ions from AgGa and AgGaSn.Conclusions: The commercially alloys demonstrate an inferior behavior compared to the experimental ones. From the experimental alloys AgIn and AgSn showed a promising behavior as they did not release any ions in vitro and expressed low corrosion vulnerability.

Οι κολλήσεις Ag χρησιμοποιούνται ευρύτατα για τη παρασκευή ορθοδοντικών μηχανημάτων αν και μπορούν να απελευθερώσουν Cu και Zn στο στοματικό περιβάλλον μέσω μηχανισμών διάβρωσης.Σκοπός: Η παρασκευή πειραματικών κραμάτων Ag που δε περιέχουν Cu και Zn.Μέθοδος – Υλικά: Χρησιμοποιήθηκαν 4 εμπορικά σκευάσματα: Dentaurum Universal silver Soldering, Leone Orthodontic Solder, Nobil Metal Solder και Orthotechnology Silver Solder και παρακευάστηκαν 4 πειραματικά κράματα: Ag12Ga, Ag10Ga5Sn, Ag20In and Ag7Sn. 14 δίσκοι από κάθε υλικό παρασκευάστηκαν λιώνοντας κατάλληλη ποσότητα σε αναγωική φλόγα και…

Subjects/Keywords: Ορθοδοντικα μηχανήματα; Κραματα συγκόλλησης Ag; Διάβρωση; Orthodontic appliances; Ag based brazing alloys; Corrosion

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ntasi, A. (2014). Development of experimental Ag-based brazing alloys for orthodontic applications. (Thesis). National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Retrieved from http://hdl.handle.net/10442/hedi/34650

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ntasi, Argyro-Aikaterini. “Development of experimental Ag-based brazing alloys for orthodontic applications.” 2014. Thesis, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Accessed December 08, 2019. http://hdl.handle.net/10442/hedi/34650.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ntasi, Argyro-Aikaterini. “Development of experimental Ag-based brazing alloys for orthodontic applications.” 2014. Web. 08 Dec 2019.

Vancouver:

Ntasi A. Development of experimental Ag-based brazing alloys for orthodontic applications. [Internet] [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2014. [cited 2019 Dec 08]. Available from: http://hdl.handle.net/10442/hedi/34650.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ntasi A. Development of experimental Ag-based brazing alloys for orthodontic applications. [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2014. Available from: http://hdl.handle.net/10442/hedi/34650

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

		in
And / Or
		in
And / Or
		in
And / Or
		in

Open Access Theses and Dissertations