李瑞卿,张毅,田保红,刘勇,许倩倩

• 1:河南科技大学材料科学与工程学院

摘要(Abstract)：

利用Gleeble-1500D热模拟试验机,通过高温等温压缩试验,研究了在变形温度为600～800℃、应变速率为0.01～5 s-1条件下Cu-Cr-Zr-Ce合金的流变应力的变化规律,测定了其真应力一应变曲线,并利用光学显微镜分析了合金在热压缩过程中的组织演变及动态再结晶机制。结果表明:Cu-Cr-Zr-Ce合金的流变应力和峰值应力随变形温度的降低和应变速率的提高而增大;且变形温度越高,应变速率越小,合金越容易发生动态再结晶。

关键词(KeyWords)： Cu-Cr-Zr-Ce合金;热压缩变形;流变应力;动态再结晶

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51101052);; 河南省高等学校青年骨干教师资助计划(2012GGJS-073);; 河南省教育厅自然科学研究计划(2011B430013);; 河南科技大学青年科学基金(2011QN48)

作者(Author): 李瑞卿,张毅,田保红,刘勇,许倩倩

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