Dry Sliding Wear Behaviour of AA6061-T6 Reinforced SiC and Al2O3 Particulate Hybrid Composites

Abstract

Dry wear behaviour of AA6061 Aluminum alloy, reinforcement with fine particulates of Silicon Carbide (25μm) and Aluminium oxide(40μm) are existed and discussed here in research paper. The reinforcement of Al alloy hybrid metal matrix composite (HMMCs) with 5-25% vol. fractions of Silicon Carbide and Aluminium oxide particles are produced by stir casting methodology and test specimen were prepared by using them. The dry sliding behaviour of these hybrid metal matrix composite specimen and that of Al6061 unreinforced alloy at ambient temperature was examined by using pin-on-disk Wear Testing Machine over a weight range of 29.43N-49.05N (3-5 kgf) along a sliding distance of 1413m at constant sliding speed of 1.57m/s. The result confirms that, the reinforced metal matrix with Silicon Carbide and Aluminium oxide particles up to a vol. fraction of 25% reduces the wear in μm at ambient temperature. Increases the volume fraction of the reinforcement decreases the wear in μm. The result also displays that the wear in μm of test specimen increase with increase in load and sliding distance.