Mechanical Properties of as-Cast A232 Aluminium Alloy

Abstract

The A232 Aluminium alloy was produced sing a dry sand mould castings at the foundry shop of department of metallurgical and material engineering Ahmadu Bello University Zaria(ABU).The alloy was cast into cylindrical bars of 12, 14, 16, 18 and 20mm diameterand300mm by length each. The as-cast bars were cut and machined to standard tensile impact and hardness test specimens. The tensile strengths, hardness values and impact test of the various cast samples were determined. It was found that both tensile and impact strength properties decreases as the section size increases. While the hardness slightly increases with the section thickness. The overall result showed that the moulding technique and section thickness had influence on the mechanical properties of the cast metal.