EFFECT OF FLY ASH, E-GLASS ON TENSILE STRENGTH AND HARDNESS IN AL 7075 BASED HYBRID COMPOSITE

Metal Matrix Composites (MMC’s) consists of either pure metal or an alloy as the matrix material, while the reinforcement generally a ceramic material. MMCs are widely used in space shuttle, commercial airliners, Electronic substrates, bicycles, automobiles, Golf clubs, and a variety of other applications. While the vast majorities are Aluminum matrix composites. The key features of MMCs are high specific strength and stiffness, improved wear resistance, high electrical and thermal conductivity. Hence, it is proposed to form a new class of composite, Al (7075) alloy reinforced with E-glass and Fly ash particulates to form MMC using graphite die casting. The MMC is obtained for the different compositions of E-glass and Fly ash particulates The test specimens are prepared to the standard size by turning and facing operations to conduct tensile, hardness tests and subjected to heat treatment. The specimens were tested for tensile test at different loads by using Universal Test Machine, test for hardness, by using Brinell hardness testing machines. The results are plotted and it is concluded that the MMC obtained has got better tensile strength and hardness, compared to Aluminum alloy (7075) alone