An investigation of the effects of hot rolling on the microstructure and mechanical behavior of nano-sized SiC particulates reinforced Al6063 alloy composites

This study investigated the properties of aluminum alloy composites reinforced with nano-SiC particles produced by
stir casting and hot rolling at a temperature of 5500C. Microstructural analysis reveals that nano SiC particles are
uniformly distributed with good bonding to the alloy Al6063. The nano SiC particles align in a rolling direction, and the
volume phase was analysed as per ASTM standards. It was observed that due to grain refinement the porosity was
reduced due to the inclusion of nano Sic. The tensile strength and hardness of synthesised hot rolled composites
significantly increased owing to enhancement of grain refinement and reduction in porosity.
Introduction
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Aluminium metal matrix composites have been used for the last three decades due to their lightweight, ductile, an