Investigation on microstructure and mechanical properties of Friction Stir Welded AA6061-4.5Cu-10SiC composite

Herbert, Mervin A and Shettigar, Arun Kumar and Nigalye, Akshay and Rao, Srikanth S (2015) Investigation on microstructure and mechanical properties of Friction Stir Welded AA6061-4.5Cu-10SiC composite. In: iMEC-APCOMS 2015, 12/11/2015, Swiss-Garden Hotel Kuala Lumpur.

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Abstract

The application of Metal Matrix Composites (MMCs) is restricted by the availability of properly developed fabrication methods. The main challenge here is the fabrication and welding of MMCs in a cost effective way. In the present study, synthesis of AA6061-4.5%Cu-10%SiC composite was done by stir casting method. The joining of MMCs was performed by Friction Stir Welding (FSW) using a combination of square and threaded profile pin tool (CSTPP). Further, the welded composite was evaluated for microstructure and joint properties. The microstructural characterization showed uniform distribution of refined fine grains and numerous small particles at nugget zone. The hardness at the stir zone is higher than that of the base material. The tensile test revealed 96% joint efficiency in transverse direction.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Friction Stir Welding, Metal Matrix Composite, nugget zone, Microstructure, hardness
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Engineering > MIT Manipal > Mechatronics
Depositing User: MIT Library
Date Deposited: 05 May 2016 16:00
Last Modified: 05 May 2016 16:00
URI: http://eprints.manipal.edu/id/eprint/145982

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