Structure and mechanical properties of Al-12%Si alloy with fast cooling Al-12%Si

A homogenous modifier obtained by the rapid solidification at a cooling rate equal to v=300 K/s was applied to the modification of the Al-12%Si alloy. The different modifiers were obtained by means of the Al-Si alloys. The components Al-12%Si were put into crucible containing the liquid Al-12%Si alloy and kept for one minute to obtain a new homogenous alloy which after break-up was homogenous modifier. Both, effect of cooling rate applied to obtain modifier and weight in weight modifier concentration in the melt on structure, tensile strength, elongations and hardness of Al-12%Si alloy are determined. A structural, physical and mechanical properties resulting from the Al-12%Si alloy treatment by modifiers are studied in details.