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中文摘要：
在Gleeble-1500D热模拟试验机上，采用高温等温压缩试验，在变形温度650-850℃、应变速率0．001～10s叫和总压缩应变量50％的条件下，对Cu-Cr-Zr合金的流变应力行为进行研究．通过应力-应变曲线和显微组织图分析了合金在不同应变速率、不同应变温度下的变化规律．结果表明：应变速率和变形温度对合金再结晶影响较大，变形温度越高，合金越容易发生动态再结晶；应变速率越小，舍金也同样容易发生动态再结晶，并且对应的峰值应力也越小。从流变应力、应变速率和温度的相关性，得出了该合金热压缩变形时的热变形激活能Q和流变应力方程．研究分析Cu-Cr-Zr合金的热加工性能，可为生产实践提供理论指导与借鉴．
英文摘要：
The flow stress behavior of Cu-Cr-Zr alloy during hot compression deformation was studied through making isothermal compression test at Gleeble-1500D thermal- mechanical simulator at the temperature from 650 ℃to 850 ℃, the strain rate from 0. 001 s-1 to 10 s ~ and under the maximum strain of 50%. The change of Cu-Cr-Zr alloy was observed under different deformation temperature and different strain rate, through flow stress-strain curve and microstructure graph. Test results show that the higher deformation temperature or the smaller strain rate is, the easier dynamic re-crystallization of the alloy will occur. At the same time, the corresponding peak stress value becomes smaller. Both the hot deformation activation energy Q and constitutive equation can be derived from the correlativity of flow stress, strain rate and temperature of this alloy. The study on Cu-Cr-Zr thermal processing figure can help analyze the thermal performance of Cu-Cr-Zr alloy, and it provides theoretical guidance and reference for production practice.
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