Constitutive behavior of as-cast magnesium alloy Mg–Al3–Zn1 in the semi-solid state

The first reported tensile semi-solid stress/strain data for as-cast magnesium alloy Mg–Al3–Zn1 are provided. The results show that the maximum tensile stress at the solidus temperature (460°C) was 13MPa. Furthermore, this alloy has no ductility above 540°C, and cannot sustain tensile stresses above 560°C. Based on these tests, an equation relating the maximum tensile stress with temperature was derived. The microstructure of the tested …