PROCESSING AND MICROSTRUCTURAL CHARACTERIZATION OF SICP REINFORCED A356 METAL MATRIX COMPOSITES
Keywords:
Composites, Stir Casting Method, Microstructure , Tensile PropertyAbstract
In the present study attempts were made to fabricate the A356/ (0-20%)SiCp composites from A356 alloy through liquid metal stir casting method. Hard abrasive particle such as silicon carbide (SiCp) with average particle size 23µm was used for the study. Microstructural examination shows a better particle distribution in the A356/10%SiCp and the A356/20%SiCp composites. Mechanical and heat treatment characterization has been done to evaluate the properties of the developed composites and found that hardness improved for the composites compared to its base alloy. Tensile stress versus tensile strain graphs for the developed composites have shown that its brittle behavior is more compared to its base alloy. XRD analysis of the composites has shown the presence of major hardening phases like Mg2Si, Al2Cu etc.
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