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Anna University

1. Venugopal P. Fabrication welding and characterisation of Al LM25 SiCp metal matrix composites;.

Degree: 2013, Anna University

Metal matrix composites (MMCs) combine a stiff but brittle phase, typically a ceramic, with a more ductile metal matrix. The correct fractional combination of materials can result in a material with improved stiffness, creep resistance, yield stress and wear resistance relative to the monolithic matrix. Aluminium silicon alloys are one of the most commonly used foundry alloys because they offer many advantages such as good thermal conductivity, excellent castability, high strength-to-weight ratio, wear and corrosion resistance, pressure tightness and good weldability. The main objective of the present research work is to manufacture the metal matrix composites, weld using GTAW and FSW, subject it to post weld heat treatment and compare the hardness, corrosion and wear behaviors of GTA welded and FS welded LM25-SiC MMCs. Stir casting method was used to manufacture the LM25-SiC MMCs. MMCs containing 5%, 10% and 15% SiC were manufactured by stir casting process. The results revealed that the microhardness of MMCs increased with the increase in % SiC. The microhardness of cryo treated composites was higher than that of as welded composites. The study on wear behavior of welded MMCs revealed that the wear rate of composites containing 5% SiC was high and that of composites containing 15% SiC was less. The present study concludes that the FSW is more advantageous for welding MMCs compared to GTAW process. Properties of hybrid composites can also be studied and they may be characterized using XRD and EDAX. newline newline newline

None

Advisors/Committee Members: Murugan, N..

Subjects/Keywords: Metal Matrix Composites; Gas Tungsten Arc Welding; Friction Stir Welding; Stir Casting; Post Weld Heat Treatment; Cryogenic Temperature; Elevated Temperature; Design of Experiments; Box Benkehn Design; Welding Current; Tool Rotational Speed; Pitting Potential; Corrosion Potential; Microhardness; Wear.

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

APA (6th Edition):

P, V. (2013). Fabrication welding and characterisation of Al LM25 SiCp metal matrix composites;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/11711

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

Chicago Manual of Style (16th Edition):

P, Venugopal. “Fabrication welding and characterisation of Al LM25 SiCp metal matrix composites;.” 2013. Thesis, Anna University. Accessed July 21, 2019. http://shodhganga.inflibnet.ac.in/handle/10603/11711.

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

MLA Handbook (7th Edition):

P, Venugopal. “Fabrication welding and characterisation of Al LM25 SiCp metal matrix composites;.” 2013. Web. 21 Jul 2019.

Vancouver:

P V. Fabrication welding and characterisation of Al LM25 SiCp metal matrix composites;. [Internet] [Thesis]. Anna University; 2013. [cited 2019 Jul 21]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/11711.

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

Council of Science Editors:

P V. Fabrication welding and characterisation of Al LM25 SiCp metal matrix composites;. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/11711

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

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