Mechanical and Tribological Properties of Al 6061 Alloy Reinforced with Gr - WC Particulates Using Powder Metallurgy Technique

There is a tremendous demand for composites based on metal matrix, as they give low density, high wear resistance, stiffness and specific strength as compared to pure aluminium. In the present work, we investigated the mechanical and tribological properties by considering metal matrix as Aluminium 6061 and reinforcements as Gr and WC. The composites were prepared based on powder metallurgy technique by varying the weight proportions of Gr particulates for 0%, 2%, 4%, 6%, 8%, and 10% with this we kept WC particulates weight proportion as 3% constant for added reinforcement specimens. From hydraulic compaction machine, compaction process was performed and specimens were sintered in a muffle furnace at 5500C. The mechanical properties were performed for BHN, compression strength of the prepared composites were improved as compared to the pure matrix material Al6061 alloy and tribological properties like wear and SEM were examined for Al 6061 alloy results in less wear resistance as compared to Aluminium 6061 with the addition of reinforcements Gr - WC.