THE EFFECT GRAPHITE ON THE COEFFICIENT OF FRICTION OF MAGNESIUM HYBRID COMPOSITES

Abstract

In the present experimental study, the coefficient of friction of magnesium matrix hybrid composites has been investigated using Taguchi technique. For the fabrication of hybrid composite simple and cost effective fabrication technique was used i.e. vacuum stir casting. Hard SiC and solid lubricant graphite particles were reinforced. Sliding wear test was carry out at Pin on disc setup at different loads (20,30,40N), graphite content (3,5,8 wt%), and sliding distance (500,1000,1500m). An L9 orthogonal array, was used for identify the effect of each control factor and their percentage contribution. It was examined that optimum value for coefficient of friction was obtained at 5%graphite (G2), 30N load (L1) and 500 m sliding distance (D1)