Investigation of Microhardness and Microstructure Using Friction Stir Welding of Dissimilar Aluminium Alloys

Sanjeev Verma; Vinod Kumar

Abstract

In this paper Friction Stir Welding (FSW) of two dissimilar aluminium alloys (AA5083 and AA6061) was successfully carried out by considering their advancing and retreating side during the process. It was observed from this experiment that the materials located on advancing side experience a longer contact under the shoulder of tool during process. This contact causes deformed and undeformed material to get larger contact with each other, so that the metallic bond results higher strength. The joint fabricated using AA6061 on retreating side and AA5083 on advancing side showed less hardness as compared to the joint fabricated using AA5083 on retreating side and AA6061 on advancing side. It has been also observed from microstructure analysis that the joint fabricated through AA5083 on retreating side gives defect free welds.Cite this ArticleSanjeev Verma, Vinod Kumar. Investigation of Microhardness and Microstructure Using Friction Stir Welding of Dissimilar Aluminium Alloys. Journal of Communication Engineering & Systems. 2018; 8(3): 37–44p.

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