An Investigation on the Mechanical and physical Properties of AL6061/SiCp/Gr Metal Matrix Composites

S.S.Mohamed, Sayed.A.Abdallah, Hamdan k.h.Alazemi

In the present work, using stir casting technique Al 6061 matrix was reinforced with graphite particles and silicon carbide particles to study the effect of graphite and silicon carbide reinforcement using mechanical testing and wear behaviour. Different volume fractions of silicon carbide viz. 5%, 10% 15% are incorporated into the alloy, maintaining the volume fraction of graphite as 3% for all proportions. Mechanical properties such as Micro-Vickers hardness test and compression strength are determined and tribological behaviour of the composite is studied using wear test. With 15% reinforcement of SiC particles, the hardness and ultimate strength are higher and the results of wear test demonstrates an increase in wear resistance with increase in SiC reinforcement.