Tribological characteristics of Al 6063–SiCp metal–matrix composite under reciprocating and wet conditions

Abstract

Particle-reinforced metal–matrix composites (MMC) with prerequisites such as uniform distribution and minimum porosity have superior mechanical properties than matrix material. Nevertheless, their tribological characteristics come next to justify the practical applicability. In this study, tribological characteristics of Al 6063–SiCp MMC, under reciprocating and wet conditions, have been assessed and reported. The process parameters selected were the applied load, sliding distance, reciprocating velocity, counter-surface temperature, and SiC percentage. The responses measured were wear loss and coefficient of friction (COF). Mathematical models have been proposed for modelling and analysis of the effects of selected process parameters. The results reveal that a proper control of process parameters can result in improved tribological characteristics. The applied load, sliding distance, reciprocating velocity, counter-surface temperature, and SiC percentage significantly affect wear loss. The applied load, sliding distance, and SiC percentage significantly affect COF. The assessment can be used to predict the tribological performance of MMCs in engineering applications subjected to similar operating environmental conditions.