An Experimental Analysis of Aluminium Metal Matrix Composite using Al2O3/B4C/Gr Particles
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Abstract
The present work aims to develop hybrid Aluminium metal matrix composites (HAMCâ€S) by incorporating different types of reinforcements such that combination of best properties could be achieved. The metal base was selected was Aluminium alloy 12% Si and it is reinforced with varying weight percentage of alumina, graphite, and boron carbide. These AMC were developed by by using stir casting technique, in which predetermined reinforcement is added to the molten matrix and then slurry is stirred well to obtain desired castings. These castings were studied for microstructural behavior and subjected to mechanical testing to study the effects of various reinforcements. The analysis of interfaces obtained revealed that boron carbide interface cracks produced greater wettability of particles and perfect interface was observed between Alumina and graphite particles and this increased microhardness of surface with further reinforcements
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