A proximate analysis in Aluminum Hybrid Metal Matrix Composites using Additive Ratio Assessment Approach with the experimental results altering different proportions of the Reinforcements

Abstract

Proper material selection is essential in manufacturing arena with superior product and cost effectivity. This paper focuses on the multi-criteria approach namely additive ratio assessment (ARAS) for best material selection of a hybrid composite using aluminum (Al) as base material with silicon carbide (SiC) and reinforcing it with waste carbonized egg shells (WCE), cow dung ash (CDA), snail shell ash (SSA) and boron carbide (B 4 C) by varying different reinforcement weights using stir casting. Experimental results show increase in hardness, tensile, fatigue strength while decrease in fracture toughness, ductility and corrosion rate which is improved by heat treatment. The optimum values obtained is 7.5 wt.% of WCE and SiC+SSA at a preheated temperature of WCE and SiC as 300°C and 500°C, respectively. The results infer that using WCE as a reinforcement with the Al matrix give better tribo mechanical properties at much cheaper rate than uncarbonized egg shells (ES) and SiC+SSA.