Experimental Characterization of Hybrid Metal Matrix Composite on Mechanical Properties under Cast Conditions

Abstract

Metal matrix composites (MMCs) are made by a reinforcing material dispersing into a metal matrix. The MMCs are prepared by casting and powder metallurgy. Achieving the homogeneous distribution of reinforcement within the matrix material is the one challenge and this affects directly on the properties and quality of composite. The aluminium alloy composite materials consist of high corrosion resistance, high strength, more thermal stability and wear resistance, and high fatigue life. Aluminium 6061 alloy materials are found to be the best with its unique capacity of designing the materials to give required properties. In this work, composites are developed by adding silicon carbide and aluminium oxide in Aluminium 6061 alloy by mass ratios 2%, 4% and 8%. The composites are prepared by stir casting technique. Mechanical tests conducted are micro-hardness test, tensile test and microstructure tests.