Study on Wear for Aa6082 Based Hybrid Surface Composites Fabricated Via Friction Stir Processing

Abstract

Friction stir processing (FSP) is claimed to be very prominent solid-state method to produce hybrid surface composite (HSC). Mainly, surface composites are the material which provides better surface properties such as wear resistance. In this study focus has been made on fabrication of HSC via FSP. For this, two types of tools (having tilt angle 3 degree and 5 degree) are used with the combination of different types of process parameters such as no. of passes, pattern of tool rotation, various combinations of weight percentage ratios of reinforcement particles, different tool rotational speeds and feed rates(tool traverse speed).  Aluminum alloy AA 6082 is selected as a matrix material and Silicon Carbide and Graphite particles are used as a reinforcement particles to fabricate HSC. Only FSPed surfaces (without addition of reinforcement particles in matrix material) are also prepared to study the wear behavior of it with above parameters. Wear of both of surfaces (HSC & FSPed surfaces) are compared with the wear of the matrix material.