Tribological and Mechanical Properties of Al 6061/SiC/ GO Hybrid Composites Produced with Stir Casting

Abstract

A constant prerequisite for technological advancement is the improvement of composite materials’ mechanical properties. In this study, stir casting was used to create hybrid Aluminium Matrix Composites (AMC). To enhance the mechanical properties, silicon carbide and graphite were used as reinforcement. AMC are made by adding different volume fractions of SiC (3%, 6%, 9% and 12%), whereas composites use a fixed volume fraction of graphite (5%). Mechanical Properties like Hardness, Tensile and wear characteristics of the manufactured AMC samples were evaluated. Under various loads 10N-40N and sliding velocities 0.6m/s-2.0 m/s the wear rate was calculated. The mechanical characteristics of manufactured AMCs are compared with Al 6061 alloy. From the experimental results, the addition of silicon carbide and graphite particles improve the mechanical characteristics. The wear rate increases with increase in applied load. However, sliding velocity surges up to 1.8 m/s before sharply declining.