Experimental study of sand cast Al/SiC metal matrix composites

Abstract

The performance of auto components heavily relies on the solidification process, which involves transforming molten metal into solid rock crystal. Achieving high-quality cooling is crucial, and this is typically accomplished by using chills—zones with very high cooling rates. Extensive research has been conducted on the solidification behavior of popular alloy compositions, considering factors such as casting techniques, mold materials, and key processing parameters. Chills have been identified as a crucial element in guiding solidification and reducing casting defects. Among the potential materials for automotive industries, aluminum-based metal matrix composites show great promise. This study focuses on the experimental analysis of the solidification behavior, microstructure, and tensile strength of Al-SiC castings produced using sand molds.