subject:(Alloys Stress corrosion)

University of Alberta

1. Yu, Liang. The Studies of Thiosulfate and Lead-induced Stress Corrosion Cracking of Alloy 800.

Degree: MS, Department of Chemical and Materials Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/p8418p212

► Scratch test and scanning electrochemical microscopy (SECM) were applied to study the effects of thiosulfate on stress corrosion cracking (SCC) of Alloy 800 in simulated… (more)

Subjects/Keywords: Alloys – Stress corrosion; Heat resistant alloys; Stress corrosion; Metals – Stress corrosion

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APA (6^th Edition):

Yu, L. (2011). The Studies of Thiosulfate and Lead-induced Stress Corrosion Cracking of Alloy 800. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/p8418p212

Chicago Manual of Style (16^th Edition):

Yu, Liang. “The Studies of Thiosulfate and Lead-induced Stress Corrosion Cracking of Alloy 800.” 2011. Masters Thesis, University of Alberta. Accessed April 19, 2021. https://era.library.ualberta.ca/files/p8418p212.

MLA Handbook (7^th Edition):

Yu, Liang. “The Studies of Thiosulfate and Lead-induced Stress Corrosion Cracking of Alloy 800.” 2011. Web. 19 Apr 2021.

Vancouver:

Yu L. The Studies of Thiosulfate and Lead-induced Stress Corrosion Cracking of Alloy 800. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Apr 19]. Available from: https://era.library.ualberta.ca/files/p8418p212.

Council of Science Editors:

Yu L. The Studies of Thiosulfate and Lead-induced Stress Corrosion Cracking of Alloy 800. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/p8418p212

Florida Atlantic University

2. Miglis, Yohann. Some corrosion problems associated with underwater turbines.

Degree: M.S.C.S., 2012, Florida Atlantic University

URL: http://purl.flvc.org/FAU/3342238

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Summary: This thesis deals with corrosion problems of underwater turbines in marine environment. The effect of a tensile stress on the uniform corrosion rate of… (more)

Subjects/Keywords: Turbines – Stress corrosion – Testing; Computational fluid dynamics; Stress corrosion; Fracture mechanics – Measurement; Alloys – Stress corrosion – Testing; Alloys – Corrosion fatigue – Testing

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APA (6^th Edition):

Miglis, Y. (2012). Some corrosion problems associated with underwater turbines. (Masters Thesis). Florida Atlantic University. Retrieved from http://purl.flvc.org/FAU/3342238

Chicago Manual of Style (16^th Edition):

Miglis, Yohann. “Some corrosion problems associated with underwater turbines.” 2012. Masters Thesis, Florida Atlantic University. Accessed April 19, 2021. http://purl.flvc.org/FAU/3342238.

MLA Handbook (7^th Edition):

Miglis, Yohann. “Some corrosion problems associated with underwater turbines.” 2012. Web. 19 Apr 2021.

Vancouver:

Miglis Y. Some corrosion problems associated with underwater turbines. [Internet] [Masters thesis]. Florida Atlantic University; 2012. [cited 2021 Apr 19]. Available from: http://purl.flvc.org/FAU/3342238.

Council of Science Editors:

Miglis Y. Some corrosion problems associated with underwater turbines. [Masters Thesis]. Florida Atlantic University; 2012. Available from: http://purl.flvc.org/FAU/3342238

University of Alberta

3. Behnamian, Yashar. Corrosion and Cracking Susceptibility of Austenitic Alloys in Supercritical Water.

Degree: PhD, Department of Chemical and Materials Engineering, 2015, University of Alberta

URL: https://era.library.ualberta.ca/files/c1r66j1257

► The present research has been done with the intent of evaluating the corrosion resistance and cracking susceptibility of some commercial candidate alloys that can be… (more)

▼ The present research has been done with the intent of evaluating the corrosion resistance and cracking susceptibility of some commercial candidate alloys that can be potentially used in Gen-IV supercritical water reactor (SCWR). The mechanism of the crack initiation in austenitic alloys exposed to SCW is not entirely understood and experimental data for performance in long-term exposure and upside down situation are not available yet. Fundamentally, austenitic and nickel-base alloys have always attracted a significant attention in power generation industry. However, using these materials for such purposes is limited due to their susceptibility to stress corrosion cracking (SCC). With this in mind, this study was focused on investigation of oxidation of several grades of austenitic stainless steels, and nickel-based alloy exposed to the supercritical water (SCW) at 800 °C for 12 h. Morphology, microstructure, and chemical composition of oxide films formed on stainless steels (SS) 347H, 316L, and 310S, and alloys 625, 214, C2000, and 800H upon SCW exposure were studied using the weight measurement, X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). It was found that alloying elements can substantially influence the oxidation of austenitic alloys exposed to SCW at high temperature (800 °C) for around 12 h. Results confirmed the presence of a duplex oxide layer consisting of Fe-Cr and Cr-Ni spinel/Cr2O3 on the substrate surface. In addition, the corrosion behavior of SS 316L capsules was investigated after 20,000 h SCW exposure at the temperature of 500 °C. Specimens were analyzed by electron microscopy, energy dispersive spectroscopy, electron energy loss spectroscopy, and X-ray diffraction technique. The film of the corrosion products was composed of an outer layer of magnetite and an inner layer of spinel structure. By increasing the exposure time, a rougher surface and thicker oxide film was approached, which were identified as Fe3O4 + spinel/Cr2O3/Ni-enrichment + SS 316L from the outer to the inner layer. Microcrack initiation was evident around the oxidized grain boundaries. The possible oxidation mechanism was studied and discussed as well. Furthermore, the oxidation behavior of capsules which were made of SS 310S was investigated after 20,000 h exposure to SCW at 500 °C. Later on, samples were analyzed using scanning electron microscopy, energy-dispersive X-rays, Auger electron spectroscopy (AES), and X-ray diffraction analysis. Results revealed that two distinct oxide layers including an outer layer of magnetite and an inner layer of spinel had been formed on the inner surface of the SS 310S capsules. Long exposure to SCW resulted in formation a rougher surface and thicker oxide scale, identified as Fe3O4 + spinel/Cr2O3/Ni-enrichment + SS 310S alloy from the outer to the inner layer. The most probable oxidation and microcrack susceptibility mechanism were proposed and discussed. By employing the complementary characterization techniques, such as…

Subjects/Keywords: Stress Corrosion Cracking; Austenitic Alloys; Corrosion; Supercritical water; Crack Susceptibility

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APA (6^th Edition):

Behnamian, Y. (2015). Corrosion and Cracking Susceptibility of Austenitic Alloys in Supercritical Water. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/c1r66j1257

Chicago Manual of Style (16^th Edition):

Behnamian, Yashar. “Corrosion and Cracking Susceptibility of Austenitic Alloys in Supercritical Water.” 2015. Doctoral Dissertation, University of Alberta. Accessed April 19, 2021. https://era.library.ualberta.ca/files/c1r66j1257.

MLA Handbook (7^th Edition):

Behnamian, Yashar. “Corrosion and Cracking Susceptibility of Austenitic Alloys in Supercritical Water.” 2015. Web. 19 Apr 2021.

Vancouver:

Behnamian Y. Corrosion and Cracking Susceptibility of Austenitic Alloys in Supercritical Water. [Internet] [Doctoral dissertation]. University of Alberta; 2015. [cited 2021 Apr 19]. Available from: https://era.library.ualberta.ca/files/c1r66j1257.

Council of Science Editors:

Behnamian Y. Corrosion and Cracking Susceptibility of Austenitic Alloys in Supercritical Water. [Doctoral Dissertation]. University of Alberta; 2015. Available from: https://era.library.ualberta.ca/files/c1r66j1257

University of British Columbia

4. Pathania, Rajeshwar Singh. Stress corrosion cracking of aluminum alloys.

Degree: PhD, Metals and Materials Engineering, 1970, University of British Columbia

URL: http://hdl.handle.net/2429/35240

► The stress corrosion behaviour of precipitation hardened Al-9Mg, Al-22Zn and Al-3Mg-6Zn alloys has been studied in aqueous environments and ethanol. The stress corrosion susceptibility defined… (more)

▼ The stress corrosion behaviour of precipitation hardened Al-9Mg, Al-22Zn and Al-3Mg-6Zn alloys has been studied in aqueous environments and ethanol. The stress corrosion susceptibility defined as the reciprocal of failure time has been investigated as a function of alloy-environment system, isothermal aging treatment, microstructure, applied tensile stress, and temperature using smooth and notched specimens. Constant load tests, load-relaxation tests and tensile tests in different environments have been used to evaluate the stress corrosion characteristics of aluminum alloys. A limited study of Mg-9Al has also been carried out in aqueous environments. The process of stress corrosion generally consisted of three parts: 1) A slow initiation stage 2) a rapid propagation stage 3) mechanical fracture due to tensile overload. With a few exceptions, the initiation time was greater than the propagation time. The crack initiation and propagation rates were stress and thermally activated and could be expressed by a general equation of the form Rate = [formula omitted] where α is the applied tensile stress, Q is the apparent activation energy of the rate controlling process and A(0) and n are constants for a given alloy-environment system. The apparent activation energy of the rate controlling process was different in the two environments. It also changed between initiation and propagation stages. The aluminum alloys when ranked in order of increasing susceptibility were: 1) Al-3Mg-6Zn, 2) Al-9Mg, 3) Al-22Zn. The alloys which were given heat treatments correlating to the presence of coherent or partially coherent phases, were found to be most prone to stress corrosion cracking. The environments placed in an order of increasing aggressiveness were dessicant-dried air, double distilled water, ethanol, ambient air, deionized water and NaCl/K₂CrO₄solution. The ductility of susceptible aluminum alloys was found to be significantly decreased by NaCl/K₂CrO₄and deionized water at low strain rates and enhanced by dessicant-dried air. Fractography showed the cracking to be intergranular in aluminum alloys and transgranular in the Mg-Al alloy. The stress corrosion surface was characterised by a rough or corroded appearance while the mechanically fractured surface exhibited slip steps and dimples caused by void formation. The hydrogen mechanism of cracking was examined in light of hydrogen charging experiments and other evidence and was found to be unsatisfactory. Models involving either dissolution or deformation alone were also inadequate in explaining the present results. Therefore a new model was postulated which involves the generation of a continuous path of chemical heterogeneity by shearing and link up of coherent precipitates followed by their dissolution. The rate controlling step in the deformation process is believed to change during the transition from initiation to propagation. The postulated model is consistent with the present results but its further development must await better knowledge of the kinetics of…

Subjects/Keywords: Aluminum alloys – Corrosion; Stress corrosion

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APA (6^th Edition):

Pathania, R. S. (1970). Stress corrosion cracking of aluminum alloys. (Doctoral Dissertation). University of British Columbia. Retrieved from http://hdl.handle.net/2429/35240

Chicago Manual of Style (16^th Edition):

Pathania, Rajeshwar Singh. “Stress corrosion cracking of aluminum alloys.” 1970. Doctoral Dissertation, University of British Columbia. Accessed April 19, 2021. http://hdl.handle.net/2429/35240.

MLA Handbook (7^th Edition):

Pathania, Rajeshwar Singh. “Stress corrosion cracking of aluminum alloys.” 1970. Web. 19 Apr 2021.

Vancouver:

Pathania RS. Stress corrosion cracking of aluminum alloys. [Internet] [Doctoral dissertation]. University of British Columbia; 1970. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/2429/35240.

Council of Science Editors:

Pathania RS. Stress corrosion cracking of aluminum alloys. [Doctoral Dissertation]. University of British Columbia; 1970. Available from: http://hdl.handle.net/2429/35240

University of British Columbia

5. Rechberger, Johann. The transition from stress corrosion cracking to corrosion fatigue in AA-7075 and AA-8090.

Degree: PhD, Materials Engineering, 1990, University of British Columbia

URL: http://hdl.handle.net/2429/30779

► The effect of crack tip strain rate (CTSR) on environmentally assisted cracking was studied for alloys AA-7075 (Al-Zn-Mg-Cu) and AA-8090 (Al-Li-Cu-Mg) in the artificially aged… (more)

▼ The effect of crack tip strain rate (CTSR) on environmentally assisted cracking was studied for alloys AA-7075 (Al-Zn-Mg-Cu) and AA-8090 (Al-Li-Cu-Mg) in the artificially aged condition. Fatigue pre-cracked double cantilever beam (DCB) specimen were employed with the crack plane parallel to the rolling plane. The cracking behaviour under monotonic and cyclic loading conditions was investigated in aqueous sodium chloride solutions with and without additions of sodium chromate as a corrosion mhibitor. CTSR values were described in terms of K-rate ∆K/∆t (ie. dK/dt) as a measured average over the loading period of a fatigue cycle. This allowed a comparison with CTSR's of monotonically increasing load or constant load tests. At frequencies ≤1 Hz, the load was applied with a triangular wave form. A high frequency of 30 Hz was obtained by sinusoidal loading. Expressed as K-rate, CTSR values were varied over 7 orders of magnitude from 10⁵MPa√m/s to 10² MPa√m/s. Stress intensities investigated were mainly around region II values with respect to SCC K-log(da/dt) behaviour. At low K-rates, real time crack velocities (da/dt) measured under monotonic slow loading or constant load conditions were comparable to crack velocities obtained with cyclic loading experiments. As the K-rate was increased from low values, typical of constant load experiments, the real time crack velocities decreased. This was caused by plasticity induced crack growth retardation effects and a decrease in crack tip film rupture events during the unloading part of a cycle. The crack propagation rate decreased until minimal crack advance increments per cycle were dictated by mechanical parameters acting on a hydrogen embrittled crack tip region. Under monotonic loading conditions region II crack velocities were not influenced by an increase in K-rate which was explained with a mass transport controlled cracking process. Tests with alloy 7075 at intermediate K-rates and a high R-ratio of 0.78 allowed a crack tunnelling mechanism to operate. This overcame the plasticity induced crack growth retardation and, therefore, cracks propagated at the same rates as during low K-rate tests where no retardation phenomena were encountered. Scanning electron microscope investigations revealed a striated intergranular fracture surface of alloy 7075 if tested at K-rates above the transition value to K-rate independent crack propagation rates. Individual striations could be matched on opposing fracture surfaces and the striation spacing corresponded to the average crack propagation increment per cycle. The striations, therefore, were formed as part of the crack advance during every fatigue cycle. At the lower K-rates no striations were present but micro tear ridges could be found on the intergranular fracture facets indicating that dissolution processes alone did not cause the intergranular crack advance. Alloy 8090 did not reveal significant changes in fractography over the entire K-rate range investigated, except at the highest K-rates where small interlocking steps…

Subjects/Keywords: Aluminum alloys – Stress corrosion; Aluminum alloys – Corrosion; Stress corrosion; Metals – Corrosion fatigue

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APA (6^th Edition):

Rechberger, J. (1990). The transition from stress corrosion cracking to corrosion fatigue in AA-7075 and AA-8090. (Doctoral Dissertation). University of British Columbia. Retrieved from http://hdl.handle.net/2429/30779

Chicago Manual of Style (16^th Edition):

Rechberger, Johann. “The transition from stress corrosion cracking to corrosion fatigue in AA-7075 and AA-8090.” 1990. Doctoral Dissertation, University of British Columbia. Accessed April 19, 2021. http://hdl.handle.net/2429/30779.

MLA Handbook (7^th Edition):

Rechberger, Johann. “The transition from stress corrosion cracking to corrosion fatigue in AA-7075 and AA-8090.” 1990. Web. 19 Apr 2021.

Vancouver:

Rechberger J. The transition from stress corrosion cracking to corrosion fatigue in AA-7075 and AA-8090. [Internet] [Doctoral dissertation]. University of British Columbia; 1990. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/2429/30779.

Council of Science Editors:

Rechberger J. The transition from stress corrosion cracking to corrosion fatigue in AA-7075 and AA-8090. [Doctoral Dissertation]. University of British Columbia; 1990. Available from: http://hdl.handle.net/2429/30779

Penn State University

6. Verners, Osvalds. Molecular dynamics analysis of oxidation, segregation and stress corrosion failures of refractory alloys.

Degree: 2014, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/22746

► The focuses of the thesis are heating induced segregation/mixing of refractory alloys, along with oxidation and stress corrosion properties of selected fcc metals and thin… (more)

▼ The focuses of the thesis are heating induced segregation/mixing of refractory alloys, along with oxidation and stress corrosion properties of selected fcc metals and thin oxide layers formed on the surfaces thereof. The particular studies include segregation and oxidation simulation of Mo3Ni alloy clusters. These reveal favorable stabilizing oxidation resistance properties due to the Ni component, which diffuses during annealing to the surface of the clusters. A comparative study has been done for different sized Al grains in Fe or Ni bulk matrices. Its results indicate that Ni matrix is favorable due to the grain dissolution and energetic stability properties upon heating and cooling of the structures. Oxidation simulation of the same structures in slab structures indicate that unmixed metals oxidize first and the alloy layer, which forms only for the Ni matrix, eventually segregates to single-metal layers, which oxidize subsequently. The stress corrosion properties of Al oxide slab/thin film structures in water, noble gas and vacuum environments have been studied with the aim of subsequent stress corrosion simulation of alloys or metals with protective surface oxide layers. The obtained results indicate brittle type failures, which involve shear deformation and localized amorphization. The plasticity enhancing fluid environment effects are found to be similar for both reactive and nonreactive species, which indicates significant pressure effects and passivated reactivity of surfaces. Parallel to the corrosion study, strain rate effects and cyclic loading behavior for slab structures in vacuum have been characterized and compared at different temperatures. These indicate time dependent deformation mechanisms including temperature enhanced local amorphization prior to crack formation. Complementary analyses include extended timescale crack behavior of a slab structure in vacuum using parallel replica dynamics and steady state analysis of a slab structure in water using a Grand Canonical Monte Carlo method. The latter allow for validation of the high strain rate and limited timescale results obtained with classical molecular dynamics. Hydrogen embrittlement studies have been conducted for Al metal slabs with oxidized surfaces. These have provided evidence for possible grain boundary decohesion and void formation related embrittlement mechanisms at different loading conditions with different initial defects. Studies of stress corrosion properties of Ni metal slab structures in water at different temperatures have been performed. The results indicate reduction of dislocation nucleation barriers due to the water reactions on material surfaces and increased temperature, resulting in reduction of material ductility. Significant effects of stress triaxiality are also observed. Advisors/Committee Members: Adrianus C Van Duin, Dissertation Advisor/Co-Advisor, Adrianus C Van Duin, Committee Chair/Co-Chair, Md Amanul Haque, Committee Member, Zoubeida Ounaies, Committee Member, Sulin Zhang, Committee Member.

Subjects/Keywords: oxidation; segregation; stress corrosion cracking; hydrogen embrittlement; alloys

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APA (6^th Edition):

Verners, O. (2014). Molecular dynamics analysis of oxidation, segregation and stress corrosion failures of refractory alloys. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/22746

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):

Verners, Osvalds. “Molecular dynamics analysis of oxidation, segregation and stress corrosion failures of refractory alloys.” 2014. Thesis, Penn State University. Accessed April 19, 2021. https://submit-etda.libraries.psu.edu/catalog/22746.

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

MLA Handbook (7^th Edition):

Verners, Osvalds. “Molecular dynamics analysis of oxidation, segregation and stress corrosion failures of refractory alloys.” 2014. Web. 19 Apr 2021.

Vancouver:

Verners O. Molecular dynamics analysis of oxidation, segregation and stress corrosion failures of refractory alloys. [Internet] [Thesis]. Penn State University; 2014. [cited 2021 Apr 19]. Available from: https://submit-etda.libraries.psu.edu/catalog/22746.

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

Council of Science Editors:

Verners O. Molecular dynamics analysis of oxidation, segregation and stress corrosion failures of refractory alloys. [Thesis]. Penn State University; 2014. Available from: https://submit-etda.libraries.psu.edu/catalog/22746

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

Georgia Tech

7. Piccinini, Roberto. Electrochemistry of stress corrosion cracking of titanium alloys in chloride environments.

Degree: MS, Metallurgy, 1972, Georgia Tech

URL: http://hdl.handle.net/1853/10980

Subjects/Keywords: Stress corrosion; Titanium alloys

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APA (6^th Edition):

Piccinini, R. (1972). Electrochemistry of stress corrosion cracking of titanium alloys in chloride environments. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/10980

Chicago Manual of Style (16^th Edition):

Piccinini, Roberto. “Electrochemistry of stress corrosion cracking of titanium alloys in chloride environments.” 1972. Masters Thesis, Georgia Tech. Accessed April 19, 2021. http://hdl.handle.net/1853/10980.

MLA Handbook (7^th Edition):

Piccinini, Roberto. “Electrochemistry of stress corrosion cracking of titanium alloys in chloride environments.” 1972. Web. 19 Apr 2021.

Vancouver:

Piccinini R. Electrochemistry of stress corrosion cracking of titanium alloys in chloride environments. [Internet] [Masters thesis]. Georgia Tech; 1972. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1853/10980.

Council of Science Editors:

Piccinini R. Electrochemistry of stress corrosion cracking of titanium alloys in chloride environments. [Masters Thesis]. Georgia Tech; 1972. Available from: http://hdl.handle.net/1853/10980

Georgia Tech

8. Mauney, David Alexander. Slow-strain-rate-hydrogen embrittlement and stress-corrosion cracking in ti-al binary alloys.

Degree: MS, Metallurgy, 1969, Georgia Tech

URL: http://hdl.handle.net/1853/11768

Subjects/Keywords: Stress corrosion; Titanium alloys

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APA (6^th Edition):

Mauney, D. A. (1969). Slow-strain-rate-hydrogen embrittlement and stress-corrosion cracking in ti-al binary alloys. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/11768

Chicago Manual of Style (16^th Edition):

Mauney, David Alexander. “Slow-strain-rate-hydrogen embrittlement and stress-corrosion cracking in ti-al binary alloys.” 1969. Masters Thesis, Georgia Tech. Accessed April 19, 2021. http://hdl.handle.net/1853/11768.

MLA Handbook (7^th Edition):

Mauney, David Alexander. “Slow-strain-rate-hydrogen embrittlement and stress-corrosion cracking in ti-al binary alloys.” 1969. Web. 19 Apr 2021.

Vancouver:

Mauney DA. Slow-strain-rate-hydrogen embrittlement and stress-corrosion cracking in ti-al binary alloys. [Internet] [Masters thesis]. Georgia Tech; 1969. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1853/11768.

Council of Science Editors:

Mauney DA. Slow-strain-rate-hydrogen embrittlement and stress-corrosion cracking in ti-al binary alloys. [Masters Thesis]. Georgia Tech; 1969. Available from: http://hdl.handle.net/1853/11768

Georgia Tech

9. Lin, Fu-Shiong. An investigation of electrochemical factors involved in the stress corrosion cracking of titanium alloys in salt solutions.

Degree: MS, Metallurgy, 1971, Georgia Tech

URL: http://hdl.handle.net/1853/11836

Subjects/Keywords: Stress corrosion; Titanium alloys

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APA (6^th Edition):

Lin, F. (1971). An investigation of electrochemical factors involved in the stress corrosion cracking of titanium alloys in salt solutions. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/11836

Chicago Manual of Style (16^th Edition):

Lin, Fu-Shiong. “An investigation of electrochemical factors involved in the stress corrosion cracking of titanium alloys in salt solutions.” 1971. Masters Thesis, Georgia Tech. Accessed April 19, 2021. http://hdl.handle.net/1853/11836.

MLA Handbook (7^th Edition):

Lin, Fu-Shiong. “An investigation of electrochemical factors involved in the stress corrosion cracking of titanium alloys in salt solutions.” 1971. Web. 19 Apr 2021.

Vancouver:

Lin F. An investigation of electrochemical factors involved in the stress corrosion cracking of titanium alloys in salt solutions. [Internet] [Masters thesis]. Georgia Tech; 1971. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1853/11836.

Council of Science Editors:

Lin F. An investigation of electrochemical factors involved in the stress corrosion cracking of titanium alloys in salt solutions. [Masters Thesis]. Georgia Tech; 1971. Available from: http://hdl.handle.net/1853/11836

The Ohio State University

10. Owen, Edwin Lewis,1942-. Some aspects of stress corrosion cracking of alpha-beta titanium alloys in aqueous environment.

Degree: PhD, Graduate School, 1970, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486662399720171

Subjects/Keywords: Engineering; Stress corrosion; Titanium alloys

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APA (6^th Edition):

Owen, E. L. (1970). Some aspects of stress corrosion cracking of alpha-beta titanium alloys in aqueous environment. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1486662399720171

Chicago Manual of Style (16^th Edition):

Owen, Edwin Lewis,1942-. “Some aspects of stress corrosion cracking of alpha-beta titanium alloys in aqueous environment.” 1970. Doctoral Dissertation, The Ohio State University. Accessed April 19, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486662399720171.

MLA Handbook (7^th Edition):

Owen, Edwin Lewis,1942-. “Some aspects of stress corrosion cracking of alpha-beta titanium alloys in aqueous environment.” 1970. Web. 19 Apr 2021.

Vancouver:

Owen EL. Some aspects of stress corrosion cracking of alpha-beta titanium alloys in aqueous environment. [Internet] [Doctoral dissertation]. The Ohio State University; 1970. [cited 2021 Apr 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486662399720171.

Council of Science Editors:

Owen EL. Some aspects of stress corrosion cracking of alpha-beta titanium alloys in aqueous environment. [Doctoral Dissertation]. The Ohio State University; 1970. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1486662399720171

University of Oxford

11. Warren, Paul J. A study of the relationship between precipitate structure and chemistry on the mechanical properties of aluminium alloys.

Degree: PhD, 1993, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:8259f666-f634-4127-b376-6fba8fffba28 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358926

► The microstructural chemistry of the commercial aluminium alloy 7150, containing Al, Zn, Mg, Cu and some trace impurities, was investigated in detail. This alloy is… (more)

Subjects/Keywords: 541; Aluminum alloys : Structure : Stress corrosion

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APA (6^th Edition):

Warren, P. J. (1993). A study of the relationship between precipitate structure and chemistry on the mechanical properties of aluminium alloys. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:8259f666-f634-4127-b376-6fba8fffba28 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358926

Chicago Manual of Style (16^th Edition):

Warren, Paul J. “A study of the relationship between precipitate structure and chemistry on the mechanical properties of aluminium alloys.” 1993. Doctoral Dissertation, University of Oxford. Accessed April 19, 2021. http://ora.ox.ac.uk/objects/uuid:8259f666-f634-4127-b376-6fba8fffba28 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358926.

MLA Handbook (7^th Edition):

Warren, Paul J. “A study of the relationship between precipitate structure and chemistry on the mechanical properties of aluminium alloys.” 1993. Web. 19 Apr 2021.

Vancouver:

Warren PJ. A study of the relationship between precipitate structure and chemistry on the mechanical properties of aluminium alloys. [Internet] [Doctoral dissertation]. University of Oxford; 1993. [cited 2021 Apr 19]. Available from: http://ora.ox.ac.uk/objects/uuid:8259f666-f634-4127-b376-6fba8fffba28 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358926.

Council of Science Editors:

Warren PJ. A study of the relationship between precipitate structure and chemistry on the mechanical properties of aluminium alloys. [Doctoral Dissertation]. University of Oxford; 1993. Available from: http://ora.ox.ac.uk/objects/uuid:8259f666-f634-4127-b376-6fba8fffba28 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358926

The Ohio State University

12. Park, Yong Soo. A study on stress corrosion cracking of type 304 stainless steel, incoloy 800 alloy, and inconel 600 alloy in boiling NaOH solutions.

Degree: PhD, Graduate School, 1978, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1487079020444156

Subjects/Keywords: Engineering; Stress corrosion; Alloys; Stainless steel

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

APA (6^th Edition):

Park, Y. S. (1978). A study on stress corrosion cracking of type 304 stainless steel, incoloy 800 alloy, and inconel 600 alloy in boiling NaOH solutions. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1487079020444156

Chicago Manual of Style (16^th Edition):

Park, Yong Soo. “A study on stress corrosion cracking of type 304 stainless steel, incoloy 800 alloy, and inconel 600 alloy in boiling NaOH solutions.” 1978. Doctoral Dissertation, The Ohio State University. Accessed April 19, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487079020444156.

MLA Handbook (7^th Edition):

Park, Yong Soo. “A study on stress corrosion cracking of type 304 stainless steel, incoloy 800 alloy, and inconel 600 alloy in boiling NaOH solutions.” 1978. Web. 19 Apr 2021.

Vancouver:

Park YS. A study on stress corrosion cracking of type 304 stainless steel, incoloy 800 alloy, and inconel 600 alloy in boiling NaOH solutions. [Internet] [Doctoral dissertation]. The Ohio State University; 1978. [cited 2021 Apr 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1487079020444156.

Council of Science Editors:

Park YS. A study on stress corrosion cracking of type 304 stainless steel, incoloy 800 alloy, and inconel 600 alloy in boiling NaOH solutions. [Doctoral Dissertation]. The Ohio State University; 1978. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1487079020444156

Virginia Tech

13. Imrich, Kenneth J. The SCC behavior of austenitic alloys in an oxygen-free CO₂ environment containing chloride ions.

Degree: MS, Materials Engineering, 1989, Virginia Tech

URL: http://hdl.handle.net/10919/77903

► Stress-corrosion cracking of austenitic alloys in an oxygen-free carbon dioxide environment containing chloride ions was studied under static conditions. Stiffness and X-ray measurements supported results… (more)

Subjects/Keywords: LD5655.V855 1989.I675; Alloys – Testing; Stress corrosion – Research; Corrosion resistant alloys – Research

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APA (6^th Edition):

Imrich, K. J. (1989). The SCC behavior of austenitic alloys in an oxygen-free CO₂ environment containing chloride ions. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/77903

Chicago Manual of Style (16^th Edition):

Imrich, Kenneth J. “The SCC behavior of austenitic alloys in an oxygen-free CO₂ environment containing chloride ions.” 1989. Masters Thesis, Virginia Tech. Accessed April 19, 2021. http://hdl.handle.net/10919/77903.

MLA Handbook (7^th Edition):

Imrich, Kenneth J. “The SCC behavior of austenitic alloys in an oxygen-free CO₂ environment containing chloride ions.” 1989. Web. 19 Apr 2021.

Vancouver:

Imrich KJ. The SCC behavior of austenitic alloys in an oxygen-free CO₂ environment containing chloride ions. [Internet] [Masters thesis]. Virginia Tech; 1989. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/10919/77903.

Council of Science Editors:

Imrich KJ. The SCC behavior of austenitic alloys in an oxygen-free CO₂ environment containing chloride ions. [Masters Thesis]. Virginia Tech; 1989. Available from: http://hdl.handle.net/10919/77903

Georgia Tech

14. Carter, Aubrey Edward. The stress corrosion susceptibility of stress coined fastener holes in aircraft structures.

Degree: MS, Aeronautical Engineering, 1973, Georgia Tech

URL: http://hdl.handle.net/1853/13400

Subjects/Keywords: Stress corrosion; Aluminum alloys Testing; Airframes Fatigue

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APA (6^th Edition):

Carter, A. E. (1973). The stress corrosion susceptibility of stress coined fastener holes in aircraft structures. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/13400

Chicago Manual of Style (16^th Edition):

Carter, Aubrey Edward. “The stress corrosion susceptibility of stress coined fastener holes in aircraft structures.” 1973. Masters Thesis, Georgia Tech. Accessed April 19, 2021. http://hdl.handle.net/1853/13400.

MLA Handbook (7^th Edition):

Carter, Aubrey Edward. “The stress corrosion susceptibility of stress coined fastener holes in aircraft structures.” 1973. Web. 19 Apr 2021.

Vancouver:

Carter AE. The stress corrosion susceptibility of stress coined fastener holes in aircraft structures. [Internet] [Masters thesis]. Georgia Tech; 1973. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/1853/13400.

Council of Science Editors:

Carter AE. The stress corrosion susceptibility of stress coined fastener holes in aircraft structures. [Masters Thesis]. Georgia Tech; 1973. Available from: http://hdl.handle.net/1853/13400

15. Wehbi, Mickaël. Modélisation de l'amorçage de la corrosion sous contrainte dans les alliages base nickel 182 et 82 en milieu primaire des réacteurs à eau sous pression : Modelling initiation of stress corrosion cracking in nickel base alloys 182 and 82 in primary water of pressurized water reactors.

Degree: Docteur es, Sciences et génie des matériaux, 2014, Paris, ENMP

URL: http://www.theses.fr/2014ENMP0056

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Les métaux déposés base nickel sont utilisés pour assembler des composants du circuit primaire des centrales nucléaires à Réacteurs à Eau sous Pression (REP). Un… (more)

▼

Les métaux déposés base nickel sont utilisés pour assembler des composants du circuit primaire des centrales nucléaires à Réacteurs à Eau sous Pression (REP). Un nombre croissant de cas de fissuration par Corrosion Sous Contrainte (CSC) des soudures en alliages base nickel 182 et 82 est rapporté dans le retour d'expérience international ce qui motive le développement d'un modèle permettant de prévoir la fissuration par CSC de ces matériaux. Ce mécanisme de dégradation fait intervenir des paramètres matériaux, mécaniques ou environnementaux qui peuvent interagir entre eux. L'objectif de cette étude est de mieux comprendre les mécanismes physiques locaux (aux joints de grains) impliqués dans l'amorçage de fissures de CSC. Un essai de traction sur une éprouvette en alliage 182 préalablement oxydée en milieu primaire simulé a mis en évidence une dispersion de la sensibilité à l'oxydation des différents joints de grains. L'analyse couplée entre oxydation et fissuration a permis, à l'aide de calculs de micro-mécanique sur un agrégat polycristallin synthétique, de proposer un critère de rupture des joints de grains oxydés défini par un couple profondeur d'oxydation/ contrainte locale critique. Compte tenu du rôle clé que tient l'oxydation intergranulaire dans le mécanisme de fissuration par CSC et de la dispersion observée entre les différents joints de grains, une cinétique d'oxydation intergranulaire des alliages base nickel 182 et 82 a été identifiée prenant en compte la précipitation de carbures de chrome, la température ou encore la teneur en hydrogène dissous. Ce modèle cinétique permet d'aborder statistiquement l'oxydation des joints de grains et est intégré à un modèle d'amorçage local. Dans ce dernier l'amorçage, défini par la fissuration de l'oxyde intergranulaire est suivi d'une phase de propagation lente puis rapide jusqu'à une certaine profondeur de fissure. Des hypothèses simplificatrices ont été faites lors de l'identification des lois embarquées dans le modèle de CSC. Toutefois, celles-ci s'avèreront utiles pour cibler les conditions des futurs essais à mener afin de conforter l'identification des différents paramètres.

Nickel base welds are widely used to assemble components of the primary circuit of Pressurized Water Reactors (PWR) plants. International experience shows an increasing number of Stress Corrosion Cracks (SCC) in nickel base welds 182 and 82 which motivates the development of models predicting the time to SCC initiation for these materials. SCC involves several parameters such as materials, mechanics or environment interacting together. The goal of this study is to have a better understanding of the physical mechanisms occurring at grains boundaries involved in SCC. In-situ tensile test carried out on oxidized alloy 182 evidenced dispersion in the susceptibility to corrosion of grain boundaries. Moreover, the correlation between oxidation and cracking coupled with micro-mechanical simulations on synthetic polycrystalline aggregate, allowed to propose a cracking criterion of oxidized grain…

Advisors/Committee Members: Crépin, Jérôme (thesis director).

Subjects/Keywords: Alliages base nickel; Soudure; Corrosion sous contrainte; Oxydation intergranulaire; Milieu primaire; Critère de rupture; Nickel base alloys; Weld; Stress corrosion cracking; Intergranular oxidation; Primary water; Cracking criterion; 620

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APA (6^th Edition):

Wehbi, M. (2014). Modélisation de l'amorçage de la corrosion sous contrainte dans les alliages base nickel 182 et 82 en milieu primaire des réacteurs à eau sous pression : Modelling initiation of stress corrosion cracking in nickel base alloys 182 and 82 in primary water of pressurized water reactors. (Doctoral Dissertation). Paris, ENMP. Retrieved from http://www.theses.fr/2014ENMP0056

Chicago Manual of Style (16^th Edition):

Wehbi, Mickaël. “Modélisation de l'amorçage de la corrosion sous contrainte dans les alliages base nickel 182 et 82 en milieu primaire des réacteurs à eau sous pression : Modelling initiation of stress corrosion cracking in nickel base alloys 182 and 82 in primary water of pressurized water reactors.” 2014. Doctoral Dissertation, Paris, ENMP. Accessed April 19, 2021. http://www.theses.fr/2014ENMP0056.

MLA Handbook (7^th Edition):

Wehbi, Mickaël. “Modélisation de l'amorçage de la corrosion sous contrainte dans les alliages base nickel 182 et 82 en milieu primaire des réacteurs à eau sous pression : Modelling initiation of stress corrosion cracking in nickel base alloys 182 and 82 in primary water of pressurized water reactors.” 2014. Web. 19 Apr 2021.

Vancouver:

Wehbi M. Modélisation de l'amorçage de la corrosion sous contrainte dans les alliages base nickel 182 et 82 en milieu primaire des réacteurs à eau sous pression : Modelling initiation of stress corrosion cracking in nickel base alloys 182 and 82 in primary water of pressurized water reactors. [Internet] [Doctoral dissertation]. Paris, ENMP; 2014. [cited 2021 Apr 19]. Available from: http://www.theses.fr/2014ENMP0056.

Council of Science Editors:

Wehbi M. Modélisation de l'amorçage de la corrosion sous contrainte dans les alliages base nickel 182 et 82 en milieu primaire des réacteurs à eau sous pression : Modelling initiation of stress corrosion cracking in nickel base alloys 182 and 82 in primary water of pressurized water reactors. [Doctoral Dissertation]. Paris, ENMP; 2014. Available from: http://www.theses.fr/2014ENMP0056

University of Oxford

16. Dohr, Judith. Micromechanical testing of oxidized grain boundaries.

Degree: PhD, 2016, University of Oxford

URL: https://ora.ox.ac.uk/objects/uuid:fb8a08ef-87d8-47ab-9ac8-89bf300203ea ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730360

► Primary water stress corrosion cracking (SCC) of metals in pressurized water reactors (PWRs) is known to be one of the most challenging and cost intensive… (more)

▼ Primary water stress corrosion cracking (SCC) of metals in pressurized water reactors (PWRs) is known to be one of the most challenging and cost intensive modes of failure in the nuclear industry. Even though it is known that cracking in Ni-base alloys proceeds mainly intergranular (IG), the initiation and propagation of cracks in ductile metals are not yet understood and a much-desired accurate prediction of SCC related failure seems unobtainable. In this thesis, a combination of microcantilever fracture experiments, scanning electron- (SEM) and transmission electron microscopy (TEM) techniques was employed to study and compare the failure of oxidized grain boundaries of Ni-base Alloy 600 with high and low intergranular carbide coverage and different sample history. A new technique for lifting-out whole cantilevers after testing and for performing 3D focussed ion beam sequencing (3D FIB-SEM) while preserving a thin central region of the cantilever for further TEM sample preparation was developed and is presented. In lieu with recent efforts of the main project sponsor Électricité de France (EDF) to build a predictive model for IGSCC based on localized/microscopic information, one of the main objectives was the extraction of the stress at failure of individual oxidized GBs. Supported by finite element simulations, microcantilever fracture tests revealed that surface oxides on top of individual GBs have the capability to alter the mechanical response by delaying/suppressing the onset of failure. An overestimation of the failure stress (> 230 MPa) was observed, proving that the presence of the surface oxide on top of the test structures cannot be neglected. The failure stress on both samples, tested without influence of the surface oxide, was found to cover a range of 300 - 600 MPa, which agreed well with finite element simulations of the tests and further demonstrates the reliability of the obtained data. The second objective was to gain a better understanding of the observed fracture behaviour and the role of local microstructure. Using the gathered microscopy data, it was found that the crack clearly favours a progression along the IG oxide-metal interface in the presence of carbide precipitates. Electron energy loss spectroscopy (EELS) revealed that the observed crack path can be linked to compositional and density variations of the IG oxide. In the presence of carbides the oxide was layered. An oxide close to the stoichiometry of chromia was located at the original GB and next to the carbides. Next to this Cr-rich oxide, Fe-rich mixed spinel oxides of varying composition and density were found. An explanation for density variations based on the possible formation of defective spinel oxides of the type A²⁺B³⁺₂O₄, due to an unavailability of certain cation species is presented. No clear interface preference was observed in the absence of precipitation, where the IG oxide was found to be thin and often incomplete with Cr-richer oxides preferentially located at the…

Subjects/Keywords: 620.1; Materials Science; Electron Microscopy; Grain Boundary Embrittlement; Nickel base alloys; Micromechanical Testing; Pressurized Water Reactors; Nanoindenter; Oxidation; Finite Element Analysis; Stress Corrosion Cracking; Microcantilevers

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

APA (6^th Edition):

Dohr, J. (2016). Micromechanical testing of oxidized grain boundaries. (Doctoral Dissertation). University of Oxford. Retrieved from https://ora.ox.ac.uk/objects/uuid:fb8a08ef-87d8-47ab-9ac8-89bf300203ea ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730360

Chicago Manual of Style (16^th Edition):

Dohr, Judith. “Micromechanical testing of oxidized grain boundaries.” 2016. Doctoral Dissertation, University of Oxford. Accessed April 19, 2021. https://ora.ox.ac.uk/objects/uuid:fb8a08ef-87d8-47ab-9ac8-89bf300203ea ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730360.

MLA Handbook (7^th Edition):

Dohr, Judith. “Micromechanical testing of oxidized grain boundaries.” 2016. Web. 19 Apr 2021.

Vancouver:

Dohr J. Micromechanical testing of oxidized grain boundaries. [Internet] [Doctoral dissertation]. University of Oxford; 2016. [cited 2021 Apr 19]. Available from: https://ora.ox.ac.uk/objects/uuid:fb8a08ef-87d8-47ab-9ac8-89bf300203ea ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730360.

Council of Science Editors:

Dohr J. Micromechanical testing of oxidized grain boundaries. [Doctoral Dissertation]. University of Oxford; 2016. Available from: https://ora.ox.ac.uk/objects/uuid:fb8a08ef-87d8-47ab-9ac8-89bf300203ea ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730360

University of Oxford

17. Lozano-Perez, Sergio. TEM crack tip investigations of SCC.

Degree: PhD, 2002, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:7e503ff9-782a-4f74-b184-dddaa96e03e2 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270678

► Over the last few years, TEM has become a powerful technique to study cracks and specially crack tips. However, the number of publications including TEM… (more)

Subjects/Keywords: 620; Transmission electron microscopy : Aluminum alloys : Cracking : Stress corrosion : Research

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APA (6^th Edition):

Lozano-Perez, S. (2002). TEM crack tip investigations of SCC. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:7e503ff9-782a-4f74-b184-dddaa96e03e2 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270678

Chicago Manual of Style (16^th Edition):

Lozano-Perez, Sergio. “TEM crack tip investigations of SCC.” 2002. Doctoral Dissertation, University of Oxford. Accessed April 19, 2021. http://ora.ox.ac.uk/objects/uuid:7e503ff9-782a-4f74-b184-dddaa96e03e2 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270678.

MLA Handbook (7^th Edition):

Lozano-Perez, Sergio. “TEM crack tip investigations of SCC.” 2002. Web. 19 Apr 2021.

Vancouver:

Lozano-Perez S. TEM crack tip investigations of SCC. [Internet] [Doctoral dissertation]. University of Oxford; 2002. [cited 2021 Apr 19]. Available from: http://ora.ox.ac.uk/objects/uuid:7e503ff9-782a-4f74-b184-dddaa96e03e2 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270678.

Council of Science Editors:

Lozano-Perez S. TEM crack tip investigations of SCC. [Doctoral Dissertation]. University of Oxford; 2002. Available from: http://ora.ox.ac.uk/objects/uuid:7e503ff9-782a-4f74-b184-dddaa96e03e2 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270678

Virginia Tech

18. Hays, Richard A. Surface residual stress effects on stress corrosion cracking/hydrogen embrittlement behavior of AISI 4340 steel.

Degree: MS, Materials Engineering, 1988, Virginia Tech

URL: http://hdl.handle.net/10919/80148

► A series of experiments was performed in an attempt to measure the effects of surface residual stresses on the stress corrosion cracking/hydrogen embrittlement (SCC/HE) behavior… (more)

Subjects/Keywords: LD5655.V855 1988.H397; Steel alloys – Stress corrosion; Steel alloys – Hydrogen embrittlement; Residual stresses

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APA (6^th Edition):

Hays, R. A. (1988). Surface residual stress effects on stress corrosion cracking/hydrogen embrittlement behavior of AISI 4340 steel. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/80148

Chicago Manual of Style (16^th Edition):

Hays, Richard A. “Surface residual stress effects on stress corrosion cracking/hydrogen embrittlement behavior of AISI 4340 steel.” 1988. Masters Thesis, Virginia Tech. Accessed April 19, 2021. http://hdl.handle.net/10919/80148.

MLA Handbook (7^th Edition):

Hays, Richard A. “Surface residual stress effects on stress corrosion cracking/hydrogen embrittlement behavior of AISI 4340 steel.” 1988. Web. 19 Apr 2021.

Vancouver:

Hays RA. Surface residual stress effects on stress corrosion cracking/hydrogen embrittlement behavior of AISI 4340 steel. [Internet] [Masters thesis]. Virginia Tech; 1988. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/10919/80148.

Council of Science Editors:

Hays RA. Surface residual stress effects on stress corrosion cracking/hydrogen embrittlement behavior of AISI 4340 steel. [Masters Thesis]. Virginia Tech; 1988. Available from: http://hdl.handle.net/10919/80148

INP Toulouse

19. Oger, Loïc. Corrosion sous contrainte et fragilisation par l'hydrogène d'alliages d'aluminium de la série 7xxx (Al-Zn-Mg) : identification des paramètres microstructuraux critiques pilotant l'endommagement à l'échelle locale. : Stress Corrosion Cracking and Hydrogen Embrittlement of a 7xxx (Al-Zn-Mg) aluminium alloy : identification of microstructural parameters controlling the damage at a local scale.

Degree: Docteur es, Science et Génie des Matériaux, 2017, INP Toulouse

URL: http://www.theses.fr/2017INPT0107

►

Dans un contexte normatif toujours plus sévère concernant les rejets automobiles polluants, la substitution des aciers par des alliages d’aluminium dans les structures des véhicules… (more)

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Dans un contexte normatif toujours plus sévère concernant les rejets automobiles polluants, la substitution des aciers par des alliages d’aluminium dans les structures des véhicules est en plein essor. Ce projet de thèse, qui s’inscrit dans un programme de développement de la société Constellium, cible plus précisément les alliages d’aluminium de la série 7xxx (Al-Zn-Mg) qui, malgré leurs propriétés mécaniques élevées, peuvent présenter une sensibilité à la corrosion sous contrainte (CSC) liée au phénomène de fragilisation par l’hydrogène (FPH). La compréhension des mécanismes mis en jeu dans ce type d’endommagement constitue donc une première étape vers une optimisation métallurgique en vue d’une industrialisation future de ces alliages dans le secteur automobile. La première partie de ces travaux est consacrée à l’étude de l’influence de l’état métallurgique de l’alliage 7046 sur son comportement en CSC et à l’identification des mécanismes de dégradation. Un lien direct a pu être mis en évidence entre l’abattement des propriétés mécaniques et les modes de rupture actifs et la quantité d’hydrogène dans l’alliage. Les deux modes d’endommagement observés, intergranulaire-fragile et transgranulaire-fragile, ont respectivement été attribués à un enrichissement en hydrogène aux joints de grains et au piégeage de l’hydrogène au niveau des précipités intragranulaires. Les interactions entre l’hydrogène et les précipités fins d’une part et les dislocations d’autre part, identifiés comme deux hétérogénéités microstructurales critiques vis-à-vis de la FPH, ont été étudiées à une échelle plus locale dans la seconde partie du travail de thèse. Les essais ont été réalisés sur des échantillons modèles, chargés en hydrogène en milieu H2SO4 sous polarisation cathodique et la profondeur de pénétration de l’hydrogène a été évaluée par SKPFM (Scanning Kelvin Probe Force Microscopy). L’ensemble des résultats obtenus met en évidence : 1/ un effet « barrière » des précipités fins et des dislocations sur la diffusion de l’hydrogène en relation avec un abattement des propriétés mécaniques moins important, 2/ un transport possible de l’hydrogène par les dislocations et 3/ l’efficacité du SKPFM pour déterminer précisément des coefficients de diffusion apparents de l’hydrogène. Ces résultats ouvrent ainsi de nouvelles pistes vers la compréhension des mécanismes de CSC dans les alliages Al-Zn-Mg.

Automotive industry is increasingly affected by standards requiring a major cut of polluting emissions, leading R&D policies to focus on replacing steel by aluminum alloys. This thesis project, initiated by the manufacturer Constellium, focuses on 7xxx (Al-Zn-Mg) aluminum alloys known to have high mechanical properties but also to be susceptible to stress corrosion cracking (SCC) partly attributed to hydrogen embrittlement (HE). Understanding the mechanisms involved would be a first step towards a metallurgical optimization and a future industrialization of these alloys. The first part focuses on the SCC behavior of the 7046 aluminum alloy, related…

Advisors/Committee Members: Blanc, Christine (thesis director), Odemer, Grégory (thesis director).

Subjects/Keywords: Alliages d'aluminium; Corrosion sous contrainte (CSC); Fragilisation par l'hydrogène (FPH); Scanning Kelvin Probe Force Microscopy (SKPFM); Optimisation métallurgique; Industrie automobile; Aluminium alloys; Stress corrosion cracking (SCC); Hydrogen embrittlement (HE); Scanning Kelvin Probe Force Microscopy (SKPFM); Metallurgical optimization; Automotive industry; 670

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

APA (6^th Edition):

Oger, L. (2017). Corrosion sous contrainte et fragilisation par l'hydrogène d'alliages d'aluminium de la série 7xxx (Al-Zn-Mg) : identification des paramètres microstructuraux critiques pilotant l'endommagement à l'échelle locale. : Stress Corrosion Cracking and Hydrogen Embrittlement of a 7xxx (Al-Zn-Mg) aluminium alloy : identification of microstructural parameters controlling the damage at a local scale. (Doctoral Dissertation). INP Toulouse. Retrieved from http://www.theses.fr/2017INPT0107

Chicago Manual of Style (16^th Edition):

Oger, Loïc. “Corrosion sous contrainte et fragilisation par l'hydrogène d'alliages d'aluminium de la série 7xxx (Al-Zn-Mg) : identification des paramètres microstructuraux critiques pilotant l'endommagement à l'échelle locale. : Stress Corrosion Cracking and Hydrogen Embrittlement of a 7xxx (Al-Zn-Mg) aluminium alloy : identification of microstructural parameters controlling the damage at a local scale.” 2017. Doctoral Dissertation, INP Toulouse. Accessed April 19, 2021. http://www.theses.fr/2017INPT0107.

MLA Handbook (7^th Edition):

Oger, Loïc. “Corrosion sous contrainte et fragilisation par l'hydrogène d'alliages d'aluminium de la série 7xxx (Al-Zn-Mg) : identification des paramètres microstructuraux critiques pilotant l'endommagement à l'échelle locale. : Stress Corrosion Cracking and Hydrogen Embrittlement of a 7xxx (Al-Zn-Mg) aluminium alloy : identification of microstructural parameters controlling the damage at a local scale.” 2017. Web. 19 Apr 2021.

Vancouver:

Oger L. Corrosion sous contrainte et fragilisation par l'hydrogène d'alliages d'aluminium de la série 7xxx (Al-Zn-Mg) : identification des paramètres microstructuraux critiques pilotant l'endommagement à l'échelle locale. : Stress Corrosion Cracking and Hydrogen Embrittlement of a 7xxx (Al-Zn-Mg) aluminium alloy : identification of microstructural parameters controlling the damage at a local scale. [Internet] [Doctoral dissertation]. INP Toulouse; 2017. [cited 2021 Apr 19]. Available from: http://www.theses.fr/2017INPT0107.

Council of Science Editors:

Oger L. Corrosion sous contrainte et fragilisation par l'hydrogène d'alliages d'aluminium de la série 7xxx (Al-Zn-Mg) : identification des paramètres microstructuraux critiques pilotant l'endommagement à l'échelle locale. : Stress Corrosion Cracking and Hydrogen Embrittlement of a 7xxx (Al-Zn-Mg) aluminium alloy : identification of microstructural parameters controlling the damage at a local scale. [Doctoral Dissertation]. INP Toulouse; 2017. Available from: http://www.theses.fr/2017INPT0107

20. Καμούτση, Ελένη. Corrosion - induced hydrogen embrittlement in high - strength al - alloys.

Degree: 2004, University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας

URL: http://hdl.handle.net/10442/hedi/14311

Subjects/Keywords: Διάβρωση; Κράματα αλουμινίου; Ψαθυροποίηση υδρογόνου; Θραύση; 2024 - T3; 6013 - T6; Corrosion; Aluminum alloys; Hydrogen embrittlement; Stress corrosion cracking; Fractures

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APA (6^th Edition):

Καμούτση, . �. (2004). Corrosion - induced hydrogen embrittlement in high - strength al - alloys. (Thesis). University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας. Retrieved from http://hdl.handle.net/10442/hedi/14311

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):

Καμούτση, Ελένη. “Corrosion - induced hydrogen embrittlement in high - strength al - alloys.” 2004. Thesis, University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας. Accessed April 19, 2021. http://hdl.handle.net/10442/hedi/14311.

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

MLA Handbook (7^th Edition):

Καμούτση, Ελένη. “Corrosion - induced hydrogen embrittlement in high - strength al - alloys.” 2004. Web. 19 Apr 2021.

Vancouver:

Καμούτση �. Corrosion - induced hydrogen embrittlement in high - strength al - alloys. [Internet] [Thesis]. University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας; 2004. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/10442/hedi/14311.

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

Council of Science Editors:

Καμούτση �. Corrosion - induced hydrogen embrittlement in high - strength al - alloys. [Thesis]. University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας; 2004. Available from: http://hdl.handle.net/10442/hedi/14311

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

University of Michigan

21. Capell, Brent M. Intergranular stress corrosion cracking and selective internal oxidation of nickel-chromium-iron alloys in hydrogenated steam.

Degree: PhD, Nuclear engineering, 2005, University of Michigan

URL: http://hdl.handle.net/2027.42/124748

► Selective internal oxidation (SIO) is a mechanism of grain boundary embrittlement through the formation of intergranular oxides of Cr₂O₃. SIO is proposed as a mechanism… (more)

▼ Selective internal oxidation (SIO) is a mechanism of grain boundary embrittlement through the formation of intergranular oxides of Cr₂O₃. SIO is proposed as a mechanism to explain intergranular stress corrosion cracking (IGSCC) of Ni-base alloys in pressurized water reactor environments. The purpose of this work is to investigate SIO through a series of experiments using controlled-purity alloys in a controlled, low-pressure steam environment in which the oxygen potential is varied. Five alloys; Ni-9Fe, Ni-5Cr, LCr (Ni-5Cr-9Fe), CD85 (Ni-16Cr-9Fe) and HCr (Ni-30Cr-9Fe), were used in corrosion coupon exposure tests and constant extension rate tensile (CERT) tests at 550°C and 400°C in an environment consisting of a controlled mixture of hydrogen, water vapor and argon. The hydrogen-to-water vapor partial pressure ratio (PPR) was varied between 0.001 and 0.9 to control the oxygen partial pressure. The Ni-9Fe, Ni-5Cr and LCr alloys formed a uniform Ni(OH)₂ film at PPR values less than 0.09 while CD85 and HCr formed Cr₂O₃ oxide films over the entire PPR range. Corrosion coupon results also show the formation of highly localized oxide particles at grain boundaries. Focused ion beam analysis revealed that intergranular oxides were observed at significant depths (>150 nm) down grain boundaries and the oxide morphology depended on the alloy composition and PPR value. Diffusion of oxygen along the grain boundary accounted for the growth of intergranular oxides. CERT test results showed that intergranular cracking was caused by creep-induced microvoid coalescence only at 550°C and did not depend on PPR. At 400°C, the cracking behavior depended on the PPR and resulted in a mixture of creep-induced microvoid coalescence and brittle intergranular failure. The cracked boundary fraction was higher at a PPR value where a Ni(OH)₂ surface film formed. Alloy composition influenced cracking and the cracked boundary fraction decreased as the alloy chromium content increased. The compositions of oxides at intergranular crack tips were similar to intergranular oxides in corrosion coupons and demonstrated a link between intergranular oxide formation and intergranular cracking. The observation of intergranular oxides as well as the influence of alloy content on IG cracking was found to support SIO as a mechanism for IGSCC. Advisors/Committee Members: Was, Gary S. (advisor).

Subjects/Keywords: Cr; Fe; Hydrogenated Steam; Intergranular Stress Corrosion Cracking; Internal; Ni; Nickel-chromium-iron Alloys; Oxidation; Selective

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

APA (6^th Edition):

Capell, B. M. (2005). Intergranular stress corrosion cracking and selective internal oxidation of nickel-chromium-iron alloys in hydrogenated steam. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/124748

Chicago Manual of Style (16^th Edition):

Capell, Brent M. “Intergranular stress corrosion cracking and selective internal oxidation of nickel-chromium-iron alloys in hydrogenated steam.” 2005. Doctoral Dissertation, University of Michigan. Accessed April 19, 2021. http://hdl.handle.net/2027.42/124748.

MLA Handbook (7^th Edition):

Capell, Brent M. “Intergranular stress corrosion cracking and selective internal oxidation of nickel-chromium-iron alloys in hydrogenated steam.” 2005. Web. 19 Apr 2021.

Vancouver:

Capell BM. Intergranular stress corrosion cracking and selective internal oxidation of nickel-chromium-iron alloys in hydrogenated steam. [Internet] [Doctoral dissertation]. University of Michigan; 2005. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/2027.42/124748.

Council of Science Editors:

Capell BM. Intergranular stress corrosion cracking and selective internal oxidation of nickel-chromium-iron alloys in hydrogenated steam. [Doctoral Dissertation]. University of Michigan; 2005. Available from: http://hdl.handle.net/2027.42/124748

The Ohio State University

22. Padgett, Barbara Nicole. Investigation into the stress corrosion cracking properties of AA2099, an Al-Li-Cu alloy.

Degree: PhD, Materials Science and Engineering, 2008, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1204515486

► Recently developed Al-Li-Cu alloys show great potential for implementation in the aerospace industry because of the attractive mix of good mechanical properties and low… (more)

Subjects/Keywords: Materials Science; aluminum-lithium-copper alloys; stress corrosion cracking; friction stir welding; anodic dissolution; 2099

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

APA (6^th Edition):

Padgett, B. N. (2008). Investigation into the stress corrosion cracking properties of AA2099, an Al-Li-Cu alloy. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1204515486

Chicago Manual of Style (16^th Edition):

Padgett, Barbara Nicole. “Investigation into the stress corrosion cracking properties of AA2099, an Al-Li-Cu alloy.” 2008. Doctoral Dissertation, The Ohio State University. Accessed April 19, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1204515486.

MLA Handbook (7^th Edition):

Padgett, Barbara Nicole. “Investigation into the stress corrosion cracking properties of AA2099, an Al-Li-Cu alloy.” 2008. Web. 19 Apr 2021.

Vancouver:

Padgett BN. Investigation into the stress corrosion cracking properties of AA2099, an Al-Li-Cu alloy. [Internet] [Doctoral dissertation]. The Ohio State University; 2008. [cited 2021 Apr 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1204515486.

Council of Science Editors:

Padgett BN. Investigation into the stress corrosion cracking properties of AA2099, an Al-Li-Cu alloy. [Doctoral Dissertation]. The Ohio State University; 2008. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1204515486

23. ALY, OMAR F. Modelagem da fratura por corrosão sob tensão nos bocais do mecânismo de acionamento das barras de controle de reator de água pressurizada.

Degree: 2006, Brazil

URL: http://repositorio.ipen.br:8080/xmlui/handle/123456789/11418

►

Made available in DSpace on 2014-10-09T12:51:41Z (GMT). No. of bitstreams: 0

Made available in DSpace on 2014-10-09T14:10:25Z (GMT). No. of bitstreams: 0

Um dos principais… (more)

▼

Made available in DSpace on 2014-10-09T12:51:41Z (GMT). No. of bitstreams: 0

Made available in DSpace on 2014-10-09T14:10:25Z (GMT). No. of bitstreams: 0

Um dos principais mecanismos de falha que causam riscos de fratura a reatores de água pressurizada é a corrosão sob tensão de ligas metálicas em água do circuito primário (CSTAP). É causada por uma combinação das tensões de tração, meio ambiente em temperatura e microestruturas metalúrgicas susceptíveis. Ela pode ocorrer, dentre outros locais, nos bocais do mecanismo de acionamento das barras de controle. Essa fratura pode causar acidentes que comprometem a segurança nuclear através do bloqueio das barras de controle e vazamentos de água do circuito primário reduzindo a confiabilidade e a vida útil do reator. O objetivo desta Tese de Doutorado é o estudo de modelos e uma proposta de modelagem para fraturas por corrosão sob tensão em liga 75Ni15Cr9Fe (liga 600), em água de circuito primário de reator de água pressurizada nesses bocais. São superpostos modelos eletroquímicos e de mecânica da fratura e validados com dados obtidos em experimentos e na literatura. Na parte experimental foram utilizados resultados obtidos pelo CDTN no equipamento recém-instalado de ensaio por taxa de deformação lenta. Na literatura está proposto um diagrama que exprime a condição termodinâmica de ocorrerem diversos modos de CSTAP na liga 600: partiu-se de diagramas de potencial x pH (diagramas de Pourbaix), para a liga 600 imersa em água primária à alta temperatura (3000C a 3500C). Sobre ele, determinaram-se os submodos de corrosão, a partir de dados experimentais. Em seguida acrescentou-se uma dimensão adicional ao diagrama, correlacionando uma variável a que se denominou fração de resistência à corrosão sob tensão. No entanto, é possível acrescentar-se outras variáveis que exprimem a cinética de iniciação e/ou crescimento de trinca, provenientes de outras modelagens de CSTAP. A contribuição original deste trabalho se insere nessa fase: partindo-se de uma condição de ensaio de potencial versus pH, foram iniciadas as modelagens de um modelo empírico-comparativo, um semi-empírico-probabilístico, um de tempo de iniciação e um de taxa de deformação, a partir dos ensaios experimentais e superpostas a essa condição. Esses exprimem respectivamente a susceptibilidade à CSTAP, o tempo de falha, e nos dois últimos o tempo de iniciação de falha por corrosão sob tensão. Os resultados foram comparados com os da literatura e se mostraram coerentes. Através desse trabalho, obteve-se uma metodologia de modelagem a partir de dados experimentais.

Tese (Doutoramento)

IPEN/T

Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

Advisors/Committee Members: Arnaldo Homobono Paes de Andrade.

Subjects/Keywords: fracture mechanics; stress corrosion; nickel base alloys; pwr type reactors; reactor control system; control rod drives; cracks

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

APA (6^th Edition):

ALY, O. F. (2006). Modelagem da fratura por corrosão sob tensão nos bocais do mecânismo de acionamento das barras de controle de reator de água pressurizada. (Doctoral Dissertation). Brazil. Retrieved from http://repositorio.ipen.br:8080/xmlui/handle/123456789/11418

Chicago Manual of Style (16^th Edition):

ALY, OMAR F. “Modelagem da fratura por corrosão sob tensão nos bocais do mecânismo de acionamento das barras de controle de reator de água pressurizada.” 2006. Doctoral Dissertation, Brazil. Accessed April 19, 2021. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11418.

MLA Handbook (7^th Edition):

ALY, OMAR F. “Modelagem da fratura por corrosão sob tensão nos bocais do mecânismo de acionamento das barras de controle de reator de água pressurizada.” 2006. Web. 19 Apr 2021.

Vancouver:

ALY OF. Modelagem da fratura por corrosão sob tensão nos bocais do mecânismo de acionamento das barras de controle de reator de água pressurizada. [Internet] [Doctoral dissertation]. Brazil; 2006. [cited 2021 Apr 19]. Available from: http://repositorio.ipen.br:8080/xmlui/handle/123456789/11418.

Council of Science Editors:

ALY OF. Modelagem da fratura por corrosão sob tensão nos bocais do mecânismo de acionamento das barras de controle de reator de água pressurizada. [Doctoral Dissertation]. Brazil; 2006. Available from: http://repositorio.ipen.br:8080/xmlui/handle/123456789/11418

24. Braga, Diogo Pedrino. Microestrutura, resistência mecânica e corrosão sob tensão em ligas de alumínio Al-0,3%Fe e Al-4%Cu processadas por extrusão em canal angular.

Degree: 2019, Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Ciência e Engenharia de Materiais – PPGCEM; UFSCar

URL: https://repositorio.ufscar.br/handle/ufscar/11800

►

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Grain refinement is an important hardening mechanism in metallic alloys, notably when the grain size reaches… (more)

▼

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Grain refinement is an important hardening mechanism in metallic alloys, notably when the grain size reaches the submicrometer scale. For this purpose, several techniques of Severe Plastic Deformation (SPD) have been employed, among which is the Equal-channel Angular Pressing (ECAP). However, the relation between grain size and corrosion resistance remains a controversial subject for most metallic materials. The aim of the present work is to evaluate the microstructure, the mechanical strength and the stress corrosion cracking (SCC) resistance of two ulfrafine grained aluminum alloys, AA1050 and Al-4%Cu, severely deformed by ECAP. Microstructure was analyzed by optical microscopy (OM), scanning (SEM) and transmission (TEM) electron microscopy, while the mechanical strength was evaluated through conventional hardness and tensile tests. Constant load and slow strain rate (SSR) tensile tests were carried out in an aqueous solution containing 3.5wt% of NaCl, in order to evaluate the SCC resistance of the alloys. After ECAP, OM and MEV revealed a significant grain size reduction in both alloys, with a fragmentation and redistribution of coarse second phase particles in the case of Al-4%Cu alloy. Hardness and tensile tests indicated a remarkable increase in the mechanical strength of the processed materials. In SSR tensile tests, with a relatively short time of exposure to the NaCl environment, CST was detected only in the Al-4% Cu alloy. In constant load tests, fractures occurred at stress levels lower than the yield stress, indicating CST susceptibility for long exposure times, in both alloys. In the absence of Cu particles (AA1050), no significant effects of ECAP processing were observed on the response to CST tests. In the case of Al-4% Cu alloy, it was found that the presence, as well as size and distribution, of the second phase particles affects the CST resistance, and that these factors can be modified, and possibly controlled, by means of ECAP processing.

O refino de grãos é um importante mecanismo de endurecimento de ligas metálicas, especialmente quando estes são reduzidos a escalas sub micrométricas. Um dos caminhos já consolidados para esse refino são as técnicas de deformação plástica severa (DPS), dentre as quais está o processamento por extrusão em canal angular (ECA). A relação entre o tamanho de grão e a resistência à corrosão de um material, no entanto, é um assunto ainda controverso. Esse trabalho tem como objetivo analisar a microestrutura, o comportamento mecânico e a resistência à corrosão sob tensão (CST) das ligas de alumínio AA1050 e Al-4%Cu com granulação ultrafina obtida por ECA. As mudanças microestruturais foram avaliadas por técnicas de microscopia óptica (MO), eletrônica de varredura (MEV) e de transmissão (MET) e as propriedades mecânicas por ensaios de tração e dureza. A resistência à CST foi avaliada por ensaios de tração em baixa taxa de deformação (BTD) e em carga constante (CC), em solução aquosa com 3,5% em…

Advisors/Committee Members: Sordi, Vitor Luiz, Della Rovere, Carlos Alberto.

Subjects/Keywords: Ligas de alumínio; Deformação plástica severa - DPS; Extrusão em canal angular - ECA; Corrosão sob tensão – CST; Aluminum alloys; Severe plastic deformation SPD; Equal channel angular extrusion – ECAP; Stress corrosion cracking – SCC; ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA

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APA (6^th Edition):

Braga, D. P. (2019). Microestrutura, resistência mecânica e corrosão sob tensão em ligas de alumínio Al-0,3%Fe e Al-4%Cu processadas por extrusão em canal angular. (Masters Thesis). Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Ciência e Engenharia de Materiais – PPGCEM; UFSCar. Retrieved from https://repositorio.ufscar.br/handle/ufscar/11800

Chicago Manual of Style (16^th Edition):

Braga, Diogo Pedrino. “Microestrutura, resistência mecânica e corrosão sob tensão em ligas de alumínio Al-0,3%Fe e Al-4%Cu processadas por extrusão em canal angular.” 2019. Masters Thesis, Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Ciência e Engenharia de Materiais – PPGCEM; UFSCar. Accessed April 19, 2021. https://repositorio.ufscar.br/handle/ufscar/11800.

MLA Handbook (7^th Edition):

Braga, Diogo Pedrino. “Microestrutura, resistência mecânica e corrosão sob tensão em ligas de alumínio Al-0,3%Fe e Al-4%Cu processadas por extrusão em canal angular.” 2019. Web. 19 Apr 2021.

Vancouver:

Braga DP. Microestrutura, resistência mecânica e corrosão sob tensão em ligas de alumínio Al-0,3%Fe e Al-4%Cu processadas por extrusão em canal angular. [Internet] [Masters thesis]. Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Ciência e Engenharia de Materiais – PPGCEM; UFSCar; 2019. [cited 2021 Apr 19]. Available from: https://repositorio.ufscar.br/handle/ufscar/11800.

Council of Science Editors:

Braga DP. Microestrutura, resistência mecânica e corrosão sob tensão em ligas de alumínio Al-0,3%Fe e Al-4%Cu processadas por extrusão em canal angular. [Masters Thesis]. Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Ciência e Engenharia de Materiais – PPGCEM; UFSCar; 2019. Available from: https://repositorio.ufscar.br/handle/ufscar/11800

25. Cao, Fuyong. Corrosion and stress corrosion cracking of magnesium alloys.

Degree: School of Mechanical and Mining Engineering, 2015, University of Queensland

URL: http://espace.library.uq.edu.au/view/UQ:359084

Subjects/Keywords: Corrosion; Stress corrosion cracking (SCC); Magnesium alloys; Hydrogen embrittlement; Immersion test; Polarization; Electrochemical Impedance Spectroscopy (EIS); Scanning electron microscopy; Linearly Increasing Stress Test (LIST); 091207 Metals and Alloy Materials

10 more images…

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APA (6^th Edition):

Cao, F. (2015). Corrosion and stress corrosion cracking of magnesium alloys. (Thesis). University of Queensland. Retrieved from http://espace.library.uq.edu.au/view/UQ:359084

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):

Cao, Fuyong. “Corrosion and stress corrosion cracking of magnesium alloys.” 2015. Thesis, University of Queensland. Accessed April 19, 2021. http://espace.library.uq.edu.au/view/UQ:359084.

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

MLA Handbook (7^th Edition):

Cao, Fuyong. “Corrosion and stress corrosion cracking of magnesium alloys.” 2015. Web. 19 Apr 2021.

Vancouver:

Cao F. Corrosion and stress corrosion cracking of magnesium alloys. [Internet] [Thesis]. University of Queensland; 2015. [cited 2021 Apr 19]. Available from: http://espace.library.uq.edu.au/view/UQ:359084.

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

Council of Science Editors:

Cao F. Corrosion and stress corrosion cracking of magnesium alloys. [Thesis]. University of Queensland; 2015. Available from: http://espace.library.uq.edu.au/view/UQ:359084

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

The Ohio State University

26. Zhao, Xinyan. Exfoliation corrosion kinetics of high strength aluminum alloys.

Degree: PhD, Materials Science and Engineering, 2006, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1140154773

► The objective of this study was to quantitatively study localized corrosion, especially exfoliation corrosion (EFC) of high strength aluminum alloys and to investigate the mechanism… (more)

▼ The objective of this study was to quantitatively study localized corrosion, especially exfoliation corrosion (EFC) of high strength aluminum alloys and to investigate the mechanism of exfoliation corrosion with a focus on the effects of alloy temper, microstructure, relative humidity (RH) and mechanical stress. A new technique, Exfoliation of Slices in Humidity (ESH), was developed for the determination of exfoliation corrosion (EFC) susceptibility and quantification of EFC kinetics. This technique involves in exposing properly oriented and unconstrained samples to high humidity following an electrochemical pretreatment. The EFC kinetics was determined by measuring the width of the central unattacked region of the samples. The ESH results show the capability of the ESH test to discriminate between plates of varying susceptibility and to determine EFC rates quantitatively. Optical microscopy and analytical TEM were used to investigate the effects of microstructure and local chemistry at grain boundary on EFC susceptibility. Alloys with more elongated grain shape are more susceptible to EFC and a high Zn content in grain boundary precipitate free zone relates to a high susceptibility. The effects of RH, temper and applied stress on EFC kinetics of AA7178 were investigated by ESH tests. The critical RH for EFC propagation in AA7178 was found to be about 56% and the EFC kinetics increased with RH. ESH tests provide a quantitative description of the temper effect on EFC kinetics. The effects of applied compressive and tensile stresses on EFC kinetics were studied using a four-point bending jig. Compression accelerated EFC significantly and tension reduced kinetics. An equation describing the effects of RH, stress and time on EFC kinetics was developed based on the ESH results using Eyring model. In situ X-ray radiography was used to characterize intergranular and exfoliation corrosion in high strength Al alloys. The samples were either exposed to sodium chloride solution (NaCl) at a controlled potential or to high humidity after an electrochemical pretreatment in NaCl solution. In situ X-ray radiography of intergranular corrosion attack provides a wide range of IGC kinetics including the fastest growing sites. This method is a good approach for visualizing the EFC process. Advisors/Committee Members: Frankel, Gerald (Advisor).

Subjects/Keywords: Engineering, Materials Science; exfoliation corrosion; kinetics; aluminum alloys; relative humidity; Exfoliation of Slices in Humidity (ESH); temper; microstructure; mechanical stress; grain boundary precipitate free zone

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

APA (6^th Edition):

Zhao, X. (2006). Exfoliation corrosion kinetics of high strength aluminum alloys. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1140154773

Chicago Manual of Style (16^th Edition):

Zhao, Xinyan. “Exfoliation corrosion kinetics of high strength aluminum alloys.” 2006. Doctoral Dissertation, The Ohio State University. Accessed April 19, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1140154773.

MLA Handbook (7^th Edition):

Zhao, Xinyan. “Exfoliation corrosion kinetics of high strength aluminum alloys.” 2006. Web. 19 Apr 2021.

Vancouver:

Zhao X. Exfoliation corrosion kinetics of high strength aluminum alloys. [Internet] [Doctoral dissertation]. The Ohio State University; 2006. [cited 2021 Apr 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1140154773.

Council of Science Editors:

Zhao X. Exfoliation corrosion kinetics of high strength aluminum alloys. [Doctoral Dissertation]. The Ohio State University; 2006. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1140154773

27. Palmer, Benjamin Clive. Sensitization Effects on Environmentally Enhanced Cracking of 5XXX Series Alloys: Macro and Mesoscale Observations.

Degree: MSs (Engineering), Materials Science and Engineering, 2017, Case Western Reserve University School of Graduate Studies

URL: http://rave.ohiolink.edu/etdc/view?acc_num=case1496232162170832

► The focus of this study was on the tensile behavior and damage development in 5083- H131 Al-Mg alloy sensitized to different levels. Samples were tested… (more)

Subjects/Keywords: Materials Science; Mechanical Engineering; Environment-enhanced-cracking; Stress corrosion cracking; 3-D tomography; Aluminum-magnesium alloys; Differential scanning calorimetry

…x29; Stress Corrosion Cracking (cracking due to having a susceptible material under… …improves the overall corrosion resistant properties. The high weldability of 5XXX alloys also… …to stress corrosion cracking (SCC) during long service lives. As evident from the… …Type I cracking in 5XXX series alloys [57]… …cracking under a higher stress intensity…

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APA (6^th Edition):

Palmer, B. C. (2017). Sensitization Effects on Environmentally Enhanced Cracking of 5XXX Series Alloys: Macro and Mesoscale Observations. (Masters Thesis). Case Western Reserve University School of Graduate Studies. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=case1496232162170832

Chicago Manual of Style (16^th Edition):

Palmer, Benjamin Clive. “Sensitization Effects on Environmentally Enhanced Cracking of 5XXX Series Alloys: Macro and Mesoscale Observations.” 2017. Masters Thesis, Case Western Reserve University School of Graduate Studies. Accessed April 19, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1496232162170832.

MLA Handbook (7^th Edition):

Palmer, Benjamin Clive. “Sensitization Effects on Environmentally Enhanced Cracking of 5XXX Series Alloys: Macro and Mesoscale Observations.” 2017. Web. 19 Apr 2021.

Vancouver:

Palmer BC. Sensitization Effects on Environmentally Enhanced Cracking of 5XXX Series Alloys: Macro and Mesoscale Observations. [Internet] [Masters thesis]. Case Western Reserve University School of Graduate Studies; 2017. [cited 2021 Apr 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1496232162170832.

Council of Science Editors:

Palmer BC. Sensitization Effects on Environmentally Enhanced Cracking of 5XXX Series Alloys: Macro and Mesoscale Observations. [Masters Thesis]. Case Western Reserve University School of Graduate Studies; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=case1496232162170832

28. ΠΑΠΑΣΤΕΡΓΙΑΔΗΣ, ΕΥΘΥΜΙΟΣ. ΜΕΛΕΤΗ ΤΗΣ ΑΝΤΟΧΗΣ ΣΤΗ ΔΙΑΒΡΩΣΗ ΑΝΟΔΙΚΑ ΟΞΕΙΔΩΜΕΝΩΝ ΣΕ ΔΙΑΦΟΡΕΣ ΣΥΝΘΗΚΕΣ ΕΛΑΣΜΑΤΩΝ ΑΛΟΥΜΙΝΙΟΥ.

Degree: 1996, Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH)

URL: http://hdl.handle.net/10442/hedi/9114

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ΑΝΤΙΚΕΙΜΕΝΟ ΤΗΣ ΔΙΔΑΚΤΟΡΙΚΗΣ ΔΙΑΤΡΙΒΗΣ ΕΙΝΑΙ Η ΜΕΛΕΤΗ ΤΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ ΤΟΥ ΑΛΟΥΜΙΝΙΟΥ (AL1050) ΣΤΗ ΔΙΑΒΡΩΣΗ ΚΑΙ ΣΤΗ ΔΙΑΒΡΩΣΗ ΜΕ ΜΗΧΑΝΙΚΗ ΚΑΤΑΠΟΝΗΣΗ (Δ.Μ.Κ.) ΣΕ ΔΙΑΒΡΩΤΙΚΟ ΠΕΡΙΒΑΛΛΟΝ NACE… (more)

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ΑΝΤΙΚΕΙΜΕΝΟ ΤΗΣ ΔΙΔΑΚΤΟΡΙΚΗΣ ΔΙΑΤΡΙΒΗΣ ΕΙΝΑΙ Η ΜΕΛΕΤΗ ΤΗΣ ΣΥΜΠΕΡΙΦΟΡΑΣ ΤΟΥ ΑΛΟΥΜΙΝΙΟΥ (AL1050) ΣΤΗ ΔΙΑΒΡΩΣΗ ΚΑΙ ΣΤΗ ΔΙΑΒΡΩΣΗ ΜΕ ΜΗΧΑΝΙΚΗ ΚΑΤΑΠΟΝΗΣΗ (Δ.Μ.Κ.) ΣΕ ΔΙΑΒΡΩΤΙΚΟ ΠΕΡΙΒΑΛΛΟΝ NACE 3,5%, ΧΩΡΙΣ ΑΛΛΑ ΚΑΙ ΜΕ ΧΡΗΣΙΜΟΠΙΗΣΗ ΠΡΟΣΤΑΤΕΥΤΙΚΩΝ ΕΠΙΣΤΡΩΜΑΤΩΝ ΗΛΕΚΤΡΟΛΥΤΙΚΑ ΠΑΡΑΣΚΕΥΑΣΜΕΝΩΝ ΟΞΕΙΔΙΩΝ ΤΟΥ ΑΛΟΥΜΙΝΙΟΥ. ΕΙΔΙΚΟΤΕΡΑ ΜΕΛΕΤΑΤΑΙ Η ΕΠΙΔΡΑΣΗ ΤΩΝ ΣΥΝΘΗΚΩΝ ΠΑΡΑΣΚΕΥΗΣ ΤΩΝ ΟΞΕΙΔΙΩΝ ΑΥΤΩΝ ΣΤΙΣ ΠΡΟΣΤΑΤΕΥΤΙΚΕΣ ΤΟΥΣ ΙΔΙΟΤΗΤΕΣ, ΜΕ ΣΤΟΧΟ ΤΗ ΔΗΜΙΟΥΡΓΙΑ ΟΞΕΙΔΙΟΥ ΜΕ ΤΙΣ ΒΕΛΤΙΣΤΕΣ ΙΔΙΟΤΗΤΕΣ. ΟΙ ΣΥΝΘΗΚΕΣ ΑΝΟΔΙΚΗΣ ΟΞΕΙΔΩΣΗΣ ΤΟΥ ΑΛΟΥΜΙΝΙΟΥ ΠΟΥ ΜΕΛΕΤΟΥΝΤΑΙ ΚΑΙ ΕΠΙΔΡΟΥΝ ΣΤΗ ΣΥΜΠΕΡΙΦΟΡΑ ΤΟΥ ΣΤΗ ΔΙΑΒΡΩΣΗ ΚΑΙ ΣΤΗ Δ.Μ.Κ. ΕΙΝΑΙ Η ΣΥΓΚΕΝΤΡΩΣΗ Η2SO4 (C3M Η 4Μ) ΣΤΟ ΛΟΥΤΡΟ, Η ΠΥΚΝΟΤΗΤΑ ΡΕΥΜΑΤΟΣ IAV.OJ(1,5-10ALDM²) ΚΑΙ Η ΥΠΑΡΞΗ Η ΟΧΙ ΕΠΙΠΡΟΣΘΕΤΩΝ ΟΥΣΙΩΝ. ΑΠΟ ΤΗ ΜΕΤΡΗΣΗ ΤΟΥ ΧΡΟΝΟΥ ΘΡΑΥΣΗΣ ΤΩΝ ΔΟΚΙΜΙΩΝ ΣΤΗ Δ.Μ.Κ. ΠΡΟΚΥΠΤΕΙ ΟΤΙ Η ΠΑΡΟΥΣΙΑ ΕΠΙΠΡΟΣΘΕΤΩΝ ΟΥΣΙΩΝ ΔΗΜΙΟΥΡΓΕΙ ΟΞΕΙΔΙΑ ΠΡΟΣΤΑΤΕΥΟΥΝ ΤΟ ΑΛΟΥΜΙΝΙΟ ΣΕ ΑΝΤΙΘΕΣΗ ΜΕ ΤΑ ΑΝΤΙΣΤΟΙΧΑ ΑΠΟΥΣΙΑ ΕΠΙΠΡΟΣΘΕΤΩΝ ΟΥΣΙΩΝ.ΟΙ ΒΕΛΤΙΣΤΕΣ ΣΥΝΘΗΚΕΣ ΠΑΡΑΣΚΕΥΗΣ ΤΩΝ ΟΞΕΙΔΙΩΝ ΕΙΝΑΙ ΗΧ2SOX3Μ ΠΑΡΟΥΣΙΑ ΜΗΛΟΝΙΚΟΥ ΟΞΕΟΣ 0.015Μ ΜΕ ΙΑΝ.07=6Α/DM². H ΗΛΕΚΤΡΟΧΗΜΙΚΗ ΜΕΛΕΤΗ ΤΗΣ ΔΙΑΒΡΩΣΗ ΓΙΝΕΤΑΙ ΜΕ ΤΗ ΜΕΘΟΔΟ ΤΗΣ ΠΟΤΕΥΣΙΟΔΥΝΑΜΙΚΗΣ ΠΟΛΩΣΗΣ ΟΠΟΥ ΠΡΟΚΥΠΤΕΙ ΟΤΙ ΤΟ ΕΙΔΟΣ ΤΗΣ ΔΙΑΒΡΩΣΗΣ ΟΛΩΝ ΤΩΝ ΕΞΕΤΑΖΟΜΕΝΩΝ ΔΟΚΙΜΙΩΝ ΕΧΕΙ ΤΟΠΙΚΟ ΚΑΙ ΟΧΙ ΟΜΟΙΟΜΟΡΦΟ ΧΑΡΑΚΤΗΡΑ. ΜΕΛΕΤΟΥΝΤΑΙ ΕΠΙΣΗΣ ΟΡΙΣΜΕΝΕΣ ΧΑΡΑΚΤΗΡΙΣΤΙΚΕΣ ΠΑΡΑΜΕΤΡΟΙ ΟΠΩΣ ΤΟ ΒΑΡΟΣ,ΠΑΧΟΣ, ΔΟΜΗ ΚΑΙ ΠΟΡΩΔΕΣ ΤΟΥ ΟΞΕΙΔΙΟΥ, ΚΑΙ ΤΡΑΧΥΤΗΤΑ ΤΗΣ ΕΠΙΦΑΝΕΙΑΣ ΤΟΥ ΕΠΗΡΕΑΖΟΝΤΑΙ ΑΠΟ ΤΗ ΜΕΤΑΒΟΛΗ ΤΩΝ ΣΥΝΘΗΚΩΝ ΤΗΣ ΟΞΕΙΔΩΣΗΣ ΕΝΩ ΕΦΑΡΜΟΖΟΝΤΑΙ ΚΑΙ ΔΙΑΦΟΡΕΣ ΤΕΧΝΙΚΕΣ (ΗΛΕΚΤΡΟΝΙΚΟ ΜΙΚΡΟΣΚΟΠΙΟ ΣΑΡΩΣΗΣ , ΠΡΟΦΙΛΟΓΡΑΦΙΑ, ΑΚΤΙΝΕΣ Χ,(ΠΕΡΙΚΟΠΗ ΠΕΡΙΛΗΨΗΣ).

THE OBZECTIVE OF THIS DOCTORAL THESIS TO STUDY THE BEHAVIOUR OF AL 1050 UNDER CORROSION AND STRESS CORROSION CRACKING (SCC) CONDITIONS WITH AND WITH AUT THE PRESENCE OF AL OXIDE COATINGS, IN A CORRSIVE ENVIROMENT OF NACL 3,5% MORO SPECIFIC THE CONDITIONS UNDER WHICH THE OXIDES ARE FORMED AND THEIR EFFECT ON THE PROTECTIVE ABILITY OF THE OXIDES IS STUDIED, ALMING AT THE FORMATION OF AN OXIDE WITH OPTIMUM PROTECTION ABILITY. THE PARAMETERS OF AL ANODIC AXIDATIONTHAT ARE STUDIED ARE: CONCETRATION OF HX2SOX4 (3M OR 4M) IN THE BATH, THE CURRENT DENSITY (1,5-10 A/DM²) AND THE PRESENCE OR NOT OF ADDITIVES IN THE BATH. THE METHOD OF MEASURING THE TIME TO FAILURE (T.T.F.) OF THE OXIDUTED SPECIMENTS HAS BEEN EMPLOYED TO SHOW THAT THE PRESENCE OF ADDITIVES IN THE BATH RESULTS IN THE FORMATION OF OXIDES THAT PROTECT. AL IN CONTRAST TO THOSE FORMED WITH OUT ADDITIVES.THE OXIDE WITH THE BEST PROTECTIVE PECFORMANCE WAS FORMED IN A BATH OF HX2SOX3 3M IN THE PRESENCE OF MALONIC ACID 0,015M AND CURRENT DENSITY 6A/DMX2. BY APPLYING THE POTENSIODYNAMIC POLARIZATION METHOD TO SPECIMENT UNDER CORROSION WE FOUNT THAT THE CORROSION HAS A LOCAL AND NOT UNIFORM CHARACTER SEVERAL CHARACTERISTIC PARAMETERS OF THE OXIDES ( E.G. WEIGNT, THICHNESS, STRUCTURE, AND POROSITY AND SURFACE ROUGHNESS) WERE STUDIED WITH THE TECHIQUES OF DIRECT MICROSCOPIC EXAMINATION PROFILOGRAFY, X-RAY, E.D.S. AND I.R SPECTVOSCOPY IN ORDER TO INTERPRET THE EXPERIMENTAL RESSULTS. THE…

Subjects/Keywords: Additives; AL OXIDES; ALOUMINIUM ALLOYS; Coatings; CORROSION AND STRESS CORROSION CRACKINY; ELECTROCHEMICAL METHODS; MALONIC ACID; PROFILOGRAFY; ΑΛΟΥΜΙΝΙΑ; ΔΙΑΒΡΩΣΕΙΣ ΚΑ ΔΙΑΒΡΩΣΕΙΣ ΜΕ ΜΗΧΑΝΙΚΗ ΚΑΤΑΠΟΝΗΣΗ; ΕΠΙΠΡΟΣΘΕΤΕΣ ΟΥΣΙΕΣ; ΗΛΕΚΤΡΟΛΥΤΙΚΑ ΕΠΙΣΤΡΩΜΑΤΑ; ΗΛΕΚΤΡΟΧΗΜΙΚΕΣ ΜΕΘΟΔΟΙ; ΜΗΛΟΝΙΚΟ ΟΞΥ; ΟΞΕΙΔΙΑ ΤΟΥ ΑΛΟΥΜΙΝΙΟΥ; ΠΡΟΦΙΛΟΓΡΑΦΙΑ

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

APA (6^th Edition):

ΠΑΠΑΣΤΕΡΓΙΑΔΗΣ, �. (1996). ΜΕΛΕΤΗ ΤΗΣ ΑΝΤΟΧΗΣ ΣΤΗ ΔΙΑΒΡΩΣΗ ΑΝΟΔΙΚΑ ΟΞΕΙΔΩΜΕΝΩΝ ΣΕ ΔΙΑΦΟΡΕΣ ΣΥΝΘΗΚΕΣ ΕΛΑΣΜΑΤΩΝ ΑΛΟΥΜΙΝΙΟΥ. (Thesis). Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH). Retrieved from http://hdl.handle.net/10442/hedi/9114

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):

ΠΑΠΑΣΤΕΡΓΙΑΔΗΣ, ΕΥΘΥΜΙΟΣ. “ΜΕΛΕΤΗ ΤΗΣ ΑΝΤΟΧΗΣ ΣΤΗ ΔΙΑΒΡΩΣΗ ΑΝΟΔΙΚΑ ΟΞΕΙΔΩΜΕΝΩΝ ΣΕ ΔΙΑΦΟΡΕΣ ΣΥΝΘΗΚΕΣ ΕΛΑΣΜΑΤΩΝ ΑΛΟΥΜΙΝΙΟΥ.” 1996. Thesis, Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH). Accessed April 19, 2021. http://hdl.handle.net/10442/hedi/9114.

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

MLA Handbook (7^th Edition):

ΠΑΠΑΣΤΕΡΓΙΑΔΗΣ, ΕΥΘΥΜΙΟΣ. “ΜΕΛΕΤΗ ΤΗΣ ΑΝΤΟΧΗΣ ΣΤΗ ΔΙΑΒΡΩΣΗ ΑΝΟΔΙΚΑ ΟΞΕΙΔΩΜΕΝΩΝ ΣΕ ΔΙΑΦΟΡΕΣ ΣΥΝΘΗΚΕΣ ΕΛΑΣΜΑΤΩΝ ΑΛΟΥΜΙΝΙΟΥ.” 1996. Web. 19 Apr 2021.

Vancouver:

ΠΑΠΑΣΤΕΡΓΙΑΔΗΣ �. ΜΕΛΕΤΗ ΤΗΣ ΑΝΤΟΧΗΣ ΣΤΗ ΔΙΑΒΡΩΣΗ ΑΝΟΔΙΚΑ ΟΞΕΙΔΩΜΕΝΩΝ ΣΕ ΔΙΑΦΟΡΕΣ ΣΥΝΘΗΚΕΣ ΕΛΑΣΜΑΤΩΝ ΑΛΟΥΜΙΝΙΟΥ. [Internet] [Thesis]. Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH); 1996. [cited 2021 Apr 19]. Available from: http://hdl.handle.net/10442/hedi/9114.

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

Council of Science Editors:

ΠΑΠΑΣΤΕΡΓΙΑΔΗΣ �. ΜΕΛΕΤΗ ΤΗΣ ΑΝΤΟΧΗΣ ΣΤΗ ΔΙΑΒΡΩΣΗ ΑΝΟΔΙΚΑ ΟΞΕΙΔΩΜΕΝΩΝ ΣΕ ΔΙΑΦΟΡΕΣ ΣΥΝΘΗΚΕΣ ΕΛΑΣΜΑΤΩΝ ΑΛΟΥΜΙΝΙΟΥ. [Thesis]. Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ); Aristotle University Of Thessaloniki (AUTH); 1996. Available from: http://hdl.handle.net/10442/hedi/9114

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

29. Young, Paul S. Modeling and Analysis for Atmospheric Galvanic Corrosion of Fasteners in Aluminum.

Degree: MSin Engineering, Chemical Engineering, 2015, University of Akron

URL: http://rave.ohiolink.edu/etdc/view?acc_num=akron1430416832

► Corrosion at fasteners in aluminum presents a high risk and challenge to corrosion mitigation strategies. The objective is to model atmospheric galvanic corrosion and determine… (more)

▼ Corrosion at fasteners in aluminum presents a high risk and challenge to corrosion mitigation strategies. The objective is to model atmospheric galvanic corrosion and determine the stages of damage evolution for 2024-T3 around fasteners. The synthesis of three test methods, exposure testing, laboratory measurements, and software modeling, are used to increase understanding of corrosion modes and damage evolution in order to help mitigate risk for atmospheric galvanic corrosion from fasteners in aluminum.An exposure study in Daytona Beach, Florida consisted of coupling aluminum coupons to metal fasteners for 24 months. Fastener metals used are 316L stainless steel, cadmium-plated low carbon 1018 steel, and cadmium-plated fasteners with Cd partially removed to simulate damaged plating. The corrosion damage modes at each stage are identified, and the impact of galvanic action is determined. A sequence of corrosion damage stages is developed and the transition through the stages is related to corrosion processes and their controlling factors. The results are related to corrosion mitigation for fasteners in Al.Galvanic corrosion is studied in the lab through Mixed Electrode Theory and through analytical modeling. Data quantifies the impact of galvanic action from fastener metal on the corrosion of aluminum. The models provide visual and quantitative data to identify galvanic couples of higher risk. Models predictions are at time zero and without the influence of damage evolution or changing environments. Laboratory testing allows for samples to be damaged so corrosion modes can be identified. The combination of modeling for quantifying the galvanic impact and damage evolution from lab tests allow for more effective corrosion mitigation methods to be employed. Models are becoming a valuable tool as user knowledge increases about the sensitivity of parameter inputs. Fasteners in aluminum, comparable to Daytona exposure tests, are used as examples for model applications. The effects of model inputs on the predictions of model outputs are analyzed for all inputs through quantified data. Models produce 3-D diagrams that highlight corrosion damage, making results easy to comprehend for non-subject experts and providing the ability to increase the effectiveness of material selection.Knowledge pertaining to atmospheric galvanic corrosion from fasteners in aluminum is increased. Laboratory tests and software models correlated very well due to the controlling input parameter (polarization curves) for software modeling being generated from laboratory data. Exposure tested aluminum coupons go through a series of corrosion stages that include pitting, intergranular corrosion and stress corrosion cracking. A synergistic effect is generated when the three test methods, exposure testing, lab testing, and software modeling, are used in combination. Advisors/Committee Members: Payer, Joe (Advisor).

Subjects/Keywords: Aerospace Engineering; Aerospace Materials; Chemical Engineering; Engineering; Materials Science; Metallurgy; Naval Engineering; Science Education; Atmospheric galvanic corrosion, intergranular corrosion, stress corrosion cracking, mixed electrode theory, modeling, exposure testing, wedging, aluminum, 2024-T3, finite elemental analysis, coulometric reduction, rust, aerospace alloys

…161 6.7 Acknowledgments �� . 163 VII. STRESS CORROSION CRACKING OF ALUMINUM… …7.11 SCC threshold stress and fracture toughness for Al alloys. Al 2024-T3 is at bottom of… …into pitting, intergranular corrosion (IGC) or stress corrosion cracking (SCC… …development and propagation of stress corrosion cracking in 2024-T3 for marine environments is… …stress corrosion cracking (SCC)36,39,49-56. The crack morphology is strongly…

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

APA (6^th Edition):

Young, P. S. (2015). Modeling and Analysis for Atmospheric Galvanic Corrosion of Fasteners in Aluminum. (Masters Thesis). University of Akron. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=akron1430416832

Chicago Manual of Style (16^th Edition):

Young, Paul S. “Modeling and Analysis for Atmospheric Galvanic Corrosion of Fasteners in Aluminum.” 2015. Masters Thesis, University of Akron. Accessed April 19, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1430416832.

MLA Handbook (7^th Edition):

Young, Paul S. “Modeling and Analysis for Atmospheric Galvanic Corrosion of Fasteners in Aluminum.” 2015. Web. 19 Apr 2021.

Vancouver:

Young PS. Modeling and Analysis for Atmospheric Galvanic Corrosion of Fasteners in Aluminum. [Internet] [Masters thesis]. University of Akron; 2015. [cited 2021 Apr 19]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1430416832.

Council of Science Editors:

Young PS. Modeling and Analysis for Atmospheric Galvanic Corrosion of Fasteners in Aluminum. [Masters Thesis]. University of Akron; 2015. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=akron1430416832

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