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The fabrication of functionally graded aluminum metal matrix composite with varying properties using a centrifugal casting technique was carried out using silicon carbide particles (SiCp) of an average particle size of 15 μm as reinforcement. The effect of the SiCp reinforcements at different weight-percent on the hardness and tensile properties of A356 aluminum alloy was studied. The effect of particle size of the SiC reinforcement on the properties of the aluminum alloy was also investigated. It was observed that the hardness of the fabricated composite gradually increased from the center of the fabricated materials to their ends while the overall hardness of the samples increased as the weight-percent of the reinforcement addition increased. This observation also held true for the tensile properties of the materials. The property variations observed are attributed to the dispersion of the reinforcement within the aluminum matrix before solidification under centrifugal force action.

Effect of Percentage Weight and Particle Size of SiCp Reinforcement on the Mechanical Behaviour of Functionally Graded Aluminum Metal Matrix Composite