微观组织演变对细晶Mg-Y-Nd合金超塑性性能的影响

曹耿华,郑振兴,刘一雄,王敏,李纬华

Influence of Microstructure Evolution on Superplastic Properties of Fine-grained Mg-Y-Nd Alloy

Genghua CAO,Zhenxing ZHENG,Yixiong LIU,Min WANG,Weihua LI

图3 SFSP试样在不同测试条件下的高温拉伸宏观形貌

Fig.3 Appearance of SFSP specimens after tensile tests at different strain rates: (a) 2×10-2 s-1, (b) 3×10-3 s-1, (c) 4×10-4 s-1