Effect of SiC addition in fabrication of Al/SiC metal matrix composite by stir casting

Abstract

Aluminum alloys find extensive application in aerospace and automobile industries due to their advantageous attributes: low density, commendable mechanical properties, superior corrosion resistance, wear resistance, and a lower thermal coefficient of expansion compared to traditional metals and alloys. These materials boast excellent mechanical properties while maintaining a relatively cost-effective production, rendering them highly desirable across various scientific and technological applications. The objective of developing metal matrix composite materials is to combine the favorable characteristics of both metals and ceramics. This study focuses on investigating the behavior of Aluminum alloy 6063 combined with SiC composite produced through the stir casting method. A different percentage (3% & 5%) of SiC is added with Al6063, and the specimens were fabricated by a stir-casting process. Tensile tests, Hardness Tests, and impact test were conducted on the specimens obtained from the stir-casting process. The result showed that there is an increase in hardness and decrease in tensile and impact strength upon the addition of SiC with Al6063 to fabricate metal matrix composite.