An experimental analysis of tensile, hardness and wear properties of aluminium metal matrix composite through stir casting process

摘要

Among several methods to fabricate Aluminium metal matrix composites, stir-casting technique is used for large-scaleproduction due to its being less expensive. This research is concerned with the fabrication of Aluminium composites withSiC and Jute Ash Particles, for sake of producing a cost-effective composite with enhanced properties. Wear behaviourwas studied using pin on disc tribometer and it was found that wear resistance increases with-addition of reinforcementparticles. Fabricated composite samples showed almost 4 times better wear resistance compared to base material.Matrix metal reinforced with SiC showed the best wear resistance of all fabricated samples. Coefficient of frictionsignificantly decreased with the presence of reinforcement due to formation of mechanical mixed layer. Tensile Strengthwas escalated with the introduction of reinforcement as load is transferred to strongly bonded reinforcement particles.Microhardness was enhanced with the introduction of reinforcement and Sample 2 with SiC as reinforcement showedthe best microhardness. Microstructure and fractography of the base metal and fabricated composites was analyzed byScanning Electron Microscope (SEM).