Mechanical and dry sliding wear behavior of cenosphere particulate reinforced Al-Si12 matrix alloy composites produced by squeeze casting

Abstract

In this study, the effects of weight fraction of cenosphere on dry sliding wear behavior of Al-Si12 matrix alloy particle reinforced composites, fabricated by squeeze casting technique was investigated. Wear tests were carried out on a pin-on-disc wear tester at 0.5235, 1.0472, 1.5708 and 2.0944 m/s sliding velocity under loads of 5, 10, 15 and 20 N against EN 31 steel disc. The results showed that the higher the load and the faster the sliding velocity are, the higher the wear rate is. The coefficient of friction of the matrix alloy and composites decreased with increase with the load.