Study the Wear Behaviour of Al5083-7% B₄C Composite Fabricated by Stir Casting Technique

Aluminium composite significantly possesses better properties as compared to unreinforced aluminium alloy such as high specific strength and higher damping capacity. Metal matrix composite (MMC) is widely used in various industries because they are ductile in nature and light in weight. This paper presents an investigation of the dry sliding wear behaviour of the Al5083 composite produced by stir casting technique with 7%B₄C weight percentage and Al5083. Evaluation of wear rate was conducted by an advanced pin-on-disc tribotester at different loads (30, 40, and 50 N) and different sliding speed (134, 200, and 267 RPM). Then, the investigation from the result of scanning electron microscope (SEM) images of worn surfaces shows that the wear resistance of the Al5083 composite is higher than Al5083. It is found that the damages of the surfaces at low load are less than at high loads and also the damages of surfaces at low sliding distance are less than at high sliding distance. The volume loss increases as the load increases, and similarly at the same applied load, volume loss increases as the sliding distance increases.