Analysis of Mechanical Behavior of AL 6063- Cotton Shell Ash and SiC METAL Matrix Composites using Stir Casting

Abstract

Al-6063 with powder reinforcement consists the superiour stiffness, high strength and better wear resistance to unreinforced base alloy. Those are used for automobile spare parts,components and aircraft body applications. Metal matrix hybrid composites (MMHC) focus mainly on economoic and ecofriendly its trend to good specific strength and hardness application. Aluminium alloy as base material and cotton shell ash (CSA) and silicon carbide (SiC) as reinforcements has better properties. The practial way to create hybrid composite is too difficult in optimum conditons. In this my project work Al 6063-CSA-SiC castings with numerouis volume proportions of CSA and SiC were fabricated, by maintaining the argon environment by the enhance of botttom pouring stir casting method. The hybrid-composites (HC) are fabricated by the reinforcement with 75 μm. We found that with more % of CSA and SiC addition to enhancement in specific strength of the hybrid composite. Surface morphology powder distribution are examined in detail by computerised inverted metallurgical microsope. The fabricated hybrid composite various tests are conducted to determne the mechanical properties of density, porosity, hardness and compression was observed and to analyze the process parameters to their effect of cotton shell ash. Influence of CSA-SIC as a reinforcement of particular emphasis the result was differentiate with unrinforced aluminum alloy.