Impact of TiB2 Content and Sliding Velocity on Wear Performance of Aluminium Matrix Composites

Abstract

Particulates dispersed aluminium matrix composites are the major substitute for variety of application at present scenario due to its massive strength, ductile nature and great thermal conductivity. In this work, TiB₂ micro-sized particulates dispersed aluminium matrix composites prepared with different weight percentages of TiB₂ particles by using liquid state stir casting process. Present investigation influence the impact of TiB₂ particles content (0, 3, 6 and 9 wt.%) and variation of sliding velocity (0.5, 1, 1.5 and 2 m/s) for a constant load 20N and sliding distance 1000 m on the wear performance of composite rubbing against EN31 steel disc. Wear analysis revealed that TiB₂ content enhanced wear rate and reverse trend noticed in case of coefficient of friction. Similarly, wear rate deteriorated and enhanced COF as increasing sliding speed of counter plate rotation.