Effects of Si Addition on the Microstructure and Tensile Property of Al-xMg Alloys with Al2Ca during Heat Treatment (x: 5 and 7 Mass%)
Effects of Si addition on the microstructure, fluidity and tensile property of Al-5/7mass%Mg alloys with Mg+Al2Ca master alloy as Mg raw material were investigated in this study. With 7 mass%Si addition, the fluidity was remarkably improved in both Al-5Mg and Al-7Mg alloys. With increasing the Si content, the amount of the eutectic phases was increased in the microstructures. As a result of the tensile test, there was a drastic reduction in elongation with increasing Si content. Al-5Mg-7Si alloy showed a significant improvement of strength after solution heat treatment and artificial aging.
Qing Liu, Jian-Feng Nie, Robert Sanders, Zhihong Jia and Lingfei Cao
S. H. Ha et al., "Effects of Si Addition on the Microstructure and Tensile Property of Al-xMg Alloys with Al2Ca during Heat Treatment (x: 5 and 7 Mass%)", Materials Science Forum, Vol. 877, pp. 109-113, 2017