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Studies on Effect of Heat Treatment on Mechanical Properties of Hybrid Aluminum Matrix Composites

Rajashekhar, Mohammed Naveed and AR Anwar Khan

Composites are materials in which two phases are combined, usually with strong interfaces between them. They usually consist of a continuous phase called matrix and discontinuous phase in the form of fibers, whiskers or particles called the reinforcement. Considerable interest in composites has been generated in the past because of their outstanding properties especially low weight high strength. Among the available, hybrid composite materials developed with soft and hard reinforcements subjected to heat treatment for further enhancement of their mechanical properties have shown keen interest in the last few decades. In the light of the above the present paper is focused on development of Al6061 alloy and its hybrid composites. Constant 5%wt silicon carbide with variable %wt of graphite particulates using stir casting technique are highlighted. SEM study, hardnessnumber and ultimate tensile strength of the developed composites are evaluated.