Abstract: By means of reheating experiments and metalloscope, microstructure evolution of AZ91D magnesium alloy extruded by an equal channel angular die is investigated in semi-solid state.

• 摘 要: 通过半固态重熔实验， 并利用金相显微镜， 对等径道角挤压AZ91D镁合金的半固态组织演变进行了研究。