Effect of different heat treatment on mechanical characteristics of aluminium alloy A357

The cast aluminium alloy A357 has been widely used in aircraft industry. Particularly, due to well known performance characteristics of aluminium alloys like strength/weight ratio (specific strength). This contribution deals with the effect of different heat treatment on mechanical characteristics of A357 cast aluminium alloy. As relevant parameters were chosen yield strength, ultimate strength, elongation and hardness. The material parameters were obtained using standard tensile test method and hardness measuring. Finally the obtained values of mechanical characteristics were compared with results which were publicized in literature.