Study of Superplasticity on the Zn-5 % Al Alloy

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- Study of Superplasticity on the Zn-5 % Al Alloy
- Zn—5％A1合金超塑性研究
- Vol. No.14, Issue 2, Pages: 85-96(1986)
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- Published：1986
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张延辉. Study of Superplasticity on the Zn-5 % Al Alloy[J]. 1986, No.14(2): 85-96.
DOI：

张延辉. Study of Superplasticity on the Zn-5 % Al Alloy[J]. 1986, No.14(2): 85-96. DOI：

通过透射电子显微镜观察

织构分析和激活能计算

对锌—铝共晶合金超塑性进行了研究。该细晶合金在较宽的温度和速率范围内变形时具有超塑性。应变速率敏感性指数 m 大于0.3。在最佳变形温度和速率条件下

可获得大于900%的延伸率。实验结果分析表明:该合金的超塑性变形机理可用界面滑动

晶内位错运动和原子沿界面扩散的叠加来解释

并以此解释了几个实验现象。对均匀变形和 m 值的物理意义进行了讨论。

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