Investigation on Casting Anomalies of Liquid Metallurgy - Processed AA 6061-B4C Composites

Abstract

The mechanical properties of aluminium alloys can be enhanced by reinforcing it with hard ceramic particles. In this work 6061 Al alloy was selected to reinforce it with B4C particles through stir casting. It was found that the hardness of the AA 6061-B4C composite was higher than the base alloy even though the reinforcement particle distribution is not uniform due to the casting anomalies. Keywords—composites, stir casting, aluminium metal matrix composites.