Deformation mechanism transition with strain rate in Mg–3Al–1Zn alloy at room temperature

At room temperature, the strain-rate sensitivity (SRS) was almost negligible at high strain rates in as-extruded Mg–3Al–1Zn alloy because of the exponent ( m ) of 0.008. However, SRS became remarkable with decreasing strain rate down to 10 −8 s −1 , where the m value increases up to 0.06.