吴春春;陈刚;郑顺奇;章国伟;陈伟;

• 1:上海速威特种合金有限公司
• 2:中国兵器科学研究院宁波分院

摘要(Abstract)：

基于等温恒应变速率压缩变形试验研究具有典型动态回复和动态再结晶变化特征的Al-12Zn-2.4Mg-1.2Cu合金的应力-应变曲线,采用加工硬化率和3次多项式拟合相结合的方法,获得试验合金的临界应力/峰值应力、临界应变/峰值应变的比值分别为0.488~0.918和0.195~0.913。随着变形温度升高和应变速率减小,发生动态再结晶的临界应力呈下降趋势;随着应变速率增加和温度降低,发生动态再结晶的临界应变速率呈增大趋势。

关键词(KeyWords)： Al-12Zn-2.4Mg-1.2Cu;动态再结晶;临界应力;临界应变

Abstract:

Keywords:

基金项目(Foundation): 宁波市自然科学基金(2017A610035)

作者(Author): 吴春春;陈刚;郑顺奇;章国伟;陈伟;

Email:

DOI: 10.14024/j.cnki.1004-244x.20180608.001

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