The investigation of mechanical and metallurgical properties on Al7075-TiC-SiC reinforced hybrid composites by stir casting

Abstract

MMCs restrain thermal conductivity and ductility of metals and high stiffness, high hardness, and low thermal conductivity in the case of ceramics. Space, aerospace, automotive and electrical industries utilizes composites due to their excellent physical and mechanical properties. But MMCs have insufficient process stability, reliability and efficiency. To rectify this problem, the HMMCs were developed. The reinforcement phase improves the mechanical properties of composite. In this research, the mechanical characteristics of Al HMMC have been investigated. Al7075 alloy was considered as matrix phase and Silicon Carbide (SiC) and Titanium Carbide (TiC) as reinforcements for fabrication of HMMC by Stir Casting Technique. The tests were carried out as per ASTM standards to find mechanical properties such as yield strength, Brinell hardness ultimate Tensile strength, and Impact strength of HMMC specimen and also metallurgical properties were studied.