Experimental Study on Tensile and Hardness Properties of Al-Cu Alloy With Graphite and Fly Ash Composite Material

Abstract

Metal Matrix Composites are engineered materials, produced by the combination of two or more different materials to gain improved properties. In the current analysis, an Al-4.5% Cu alloy be used as the fly ash and graphite and matrix is reinforcement. Aluminum copper alloy matrix composite repels the much concentration due to their high thermal conductivity, lightness, moderate making temperature etc. graphite powders and fly ash are used since its low density and high strength. The composite was formed using stir casting approach. The fly ash was added in 3%, 6%, and 9 % by weight and graphite was added in 3%, 6%, and 9 % by weight to the molten metal. The composite was tested for hardness, mechanical properties,. Microstructure investigation was done using a scanning electron microscope to gain the distribution of graphite and fly ash in the aluminum matrix. The results found an increase in tensile strength and hardness with increasing the graphite and fly ash content.