Title: Mechanical properties of 7075-t6 aluminium alloy surface hybrid composites synthesised by friction stir processing

Authors: K. Periasamy; M. Jayaraman; S. Rajkumar

Addresses: Department of Mechanical Engineering, Kongunadu College of Engineering and Technology, Thottiam, Thiruchirapalli, Tamil Nadu, India ' Department of Mechanical Engineering, Velalar College of Engineering and Technology, Erode, Tamil Nadu, India ' Faculty of Manufacturing Engineering, Department of Mechanical Engineering, Institute of Technology, Hawassa University, Ethiopia

Abstract: In this investigation of surface hybrid composites on aluminium alloy 7075 substrate using friction stir processing (FSP) with various composition of reinforced particles such as silicon carbide (SiC) and graphite (Gr). The distribution of reinforcement in the nugget zone was examined by SEM with EDS analysis. The strength and microhardness are compared with the samples. Sample S3 (50% SiC + 50% Gr) shows the property superior than other combinations. The samples with higher amount of graphite content leads to deterioration in tensile strength and hardness.

Keywords: aluminium alloy; reinforcement particles; surface modification; friction stir process; FSP; hybrid composites.

DOI: 10.1504/IJRAPIDM.2019.097025

International Journal of Rapid Manufacturing, 2019 Vol.8 No.1/2, pp.52 - 64

Received: 18 May 2018
Accepted: 10 Jul 2018

Published online: 14 Dec 2018 *

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