多道次压缩变形对AZ80镁合金微观组织演化的影响

李振亮, 张欣磊, 田董扩

Effect of Multi-Pass Compression Deformation on Microstructure Evolution of AZ80 Magnesium Alloy

LI Zhenliang, ZHANG Xinlei, TIAN Dongkuo

图8 恒温、阶梯降温2类变形工艺的几何必需位错密度分布图

Fig.8 Geometrically necessary dislocation (GND) density distribution maps of constant-temperature deformation process at ε = 0.2 (a), ε = 0.4 (b), and ε = 0.6 (c); and step-cooling deformation process at ε = 0.6 (d) (The green is the dislocation concentration area, and the blue is the dislocation-free area)