Mechanical Characteristics of Ceramic Particulate Reinforced Al7075 Metal Matrix Composites and Effect of Age Hardening On its Tensile Properties

Aluminium materials have a massive demand in the fields of automotive, aerospace and different engineering applications in order to meet requirements of various fields. A material with sound mechanical and thermal properties is produced which is metal matrix composites in which aluminium alloy is used as a common matrix phase and different material particulates and fibers are used as a reinforcement. Experimental MMC components are being developed and find their applications in aircraft, satellites, jet engines, missiles, and space shuttle industries. In this study, ceramic materials are used as reinforcements for MMCs such as Sic, Al O , B4c and TiB . Al7075 is used as a 2 3 2 base matrix material. Metal matrix composites can be fabricated using different ceramic reinforcements and in this work, stir casting method, which is a liquid metallurgy technique, is used to produce the composite materials. Four different MMCs are produced with 15% Sic, 15% Al O , 15% B4c, and 15% TiB . The Mechanical Characteristics such 2 3 2 as hardness, tensile strength, and impact strength are studied for these composites. The obtained results were compared and graphically charted to characterize these materials.