Effect of Superheating on Properties of Aluminium-Silicon Castings.

Document Type : Original Article

Authors

1 Mechanical Engineering Department, Shoubra Faculty of Engineering, Zagazig University.

2 Mechanical Engineering Department, Higher Technological Inst. 10' of Ramadan City.

Abstract

This paper indicated that the strength and hardness of Al-Si alloys are,
influenced slightly by superheating and Si content. However the ductility (6) is
affected markedly by pouring temperature (i.e. superheating) and Si content
too. For the hypereutectic Al-Si alloy the pouring temperature must be as
minimum as possible to obtain the best properties. The Si segregation is
influenced also by the Si content.