Influence of WC-Co addition in the improvement of mechanical properties of aluminium matrix composite via liquid metallurgy route

The demand for high quality materials are increased in the applications of aerospace and automobile industries. The main requirement in the industrial products looking towards the lightweight aluminium (Al) matrix composites lead us to prepare the same with improvisation of physical, mechanical and tribological properties of the composites. In this view the present paper opens up towards the new approach of the utilization of hard ceramic (WC) and soft metallic (Co) blend particulates as reinforcements in Al7075 matrix to prepare the composite via liquid metallurgy route. Composites are prepared for 6 and 9 wt% addition of reinforcement. Samples are characterized by using SEM and EDAX analysis. Evaluation on mechanical properties of the samples over the base alloy exhibits a significant improvement in the tensile strength of the composite material.