The synergic effects of Sc and Zr on the microstructure and mechanical properties of Al-Si-Mg alloy

The engineering tensile stress-strain curves of T6 tempered F357 based alloys with different combinations of Sc and Zr additions. Note that the F357 alloy with 0.3 wt.% Sc and 0.2 wt.% Zr additions has the best mechanical properties in terms of strength and ductility.133