Macrostructure and Mechanical Properties of AA6082/SiC Composite Produced By Mechanical Stir Casting Process

Abstract In the present study, AA6082/SiC metal matrix composite with different size of reinforcements (75µm, 50µm and 25 µm) were fabricated by mechanical stir casting route. Macrostructural analysis, tensile test, hardness test, impact test were performed to find out microstructure and mechanical properties of the metal matrix composites. Minimum porosity was observed for the 25 µm of silicon carbide. The mechanical properties showed that the reduction of the size of SiC particles led to the improvement in tensile strength, hardness and toughness. It indicates that size of reinforcement is the effective factor influencing the mechanical properties