Investigation of Mechanical and Wear Properties of Al-Mg2 Si-Cu-Ni Cast Composites In As-Cast And Heat Treated Conditions

Abstract

This study aims to examine the mechanical and wear properties of aluminum alloy (Al-Mg2Si-Cu-Ni) in as cast and heat-treated conditions. Sliding tribology tests were carried out via a Pin-on-disc set up. Tensile, compression and hardness experiments on as-cast and 1 hour homogenized specimens were done to evaluate the mechanical properties. Universal testing machine and Brinell hardness tester were used to conduct the tensile-compressive and hardness tests at room temperature, respectively. The microstructure evolution was analyzed by X-ray diffractometer and also scanning electron microscope. The results of wear and mechanical properties indicated that heat-treated Al-Mg2Si-Cu-Ni cast composites had superior tensile and compressive strength, wear resistance and hardness, as compared to as cast samples.