Influence of Degree of Deformation on Anisotropy in Mechanical Properties in Wrought Magnesium Alloy ZK60

A direct-chill (DC) cast magnesium alloys ZK60 has been forward-extruded at 300 °C in a single pass at two extrusion ratios (ER) 12 and 44, which correspond to a total degree of deformation (φ) of 2.5 and 3.8, respectively. The as-extruded microstructure in both cases consists of two colonies of grain sizes, i.e. about 15 µm and 25 µm) at higher extrusion ratios give significantly weaker strength differential effect (difference in tensile yield stress and compressive yield stress).