Mechanical Behaviour Of Aluminium Based Metal Matrix Composites Reinforced With Coconut Shell Ash

Abstract

Aluminium alloys are widely used in aerospace and automobile industries due to their low density and good mechanical properties, better corrosion resistance and wear, low thermal coefficient of expansion as compared to conventional metals and alloys. The excellent mechanical and physical properties of these materials and relatively low production cost make them a very attractive candidate for a variety of applications both from scientific and technological viewpoints. The aim involved in designing metal matrix composite materials is to combine the desirable attributes of metals and Ceramics. Present work is focused on the study of behaviour of Aluminium Cast Alloy (AL7075) with coconut ash composite produced by the stir casting technique. 5% and 10% age of reinforcement is used. Hardness Test, tensile test, impact test and microstural study (microscope) performed on the samples obtained by the stir casting process. Hardness tester is employed to evaluate the interfacial bonding between the particles and the matrix by indenting the hardness with the constant load and constant time.