Abstract
Due to the problem of obtaining the predicted mechanical properties for Al-Si alloys, especially after heat treatment, trial batches of sodium, strontium and unmodified alloys were cast. The alloys were cast using a standard test bar design. The material was solution treated, quenched and aged (at both increasing time and temperature) to obtain the best properties possible. Initial background information and theory was obtained at libraries to obtain a better working knowledge of the alloy...