Investigation on mechanical and tribological characterization of Gr filled AA7075 alloy composite using Taguchi method

Abstract

Current research work emphasis on the mechanical and tribological characteristics of the graphite reinforced AA7075 alloy composite. The samples were developed with various proportions (0, 1, 3, 5, and 7 wt%) of Gr particulate in Al alloy matrix using the high vacuum casting machine. The physical and mechanical characterization like density, void content, hardness, impact strength, flexural strength, and compressive strength were experimentally estimated. The dry sliding wear performance of the composite specimens was also estimated. The various samples were ranked based on the wear rate performance using the Taguchi method. The experimental results reveal that the estimated tribological and mechanical performance enhances with the addition of Gr weight percentage. Hence, the performance of 7 wt% Gr particulate in AA7075 shows better wear resistance.