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Abstract：
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In order to study the high temperature thermal deformation behavior of Cu-Cr-Zr alloy, the high temperature constitutive model of Cu-Cr-Zr alloy was established，and the thermal compression experiments under different deformation conditions were conducted by Gleeble-1500D thermal simulator. The experimental parameters were the deformation amount of 60%, the strain rate of 0.1-5 s-1, and the deformation temperature of 650-900 ℃. The experiment results show that the work hardening effect is greater than the dynamic softening effect in the initial stage of deformation, so that the stress value increases rapidly to the peak value, then the dynamic softening effect is greater than the work hardening effect, so that the stress value decreases to a certain extent and then stabilizes. By analyzing the variation of stress-strain curve for Cu-Cr-Zr alloy, the low strain rate and the high deformation temperature promote the degree of dynamic recrystallization for alloy. Furthermore, the experimental data is calculated and sorted by calculation software, and the constitutive model of Cu-Cr-Zr alloy is obtained by substituting the linearly fitted value into the Arrhenius constitutive model.
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Funds：
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山西省科技重大专项（20181101002）；山西省重点学科建设经费资助
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AuthorIntro：
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陈莹（1993-），女，硕士研究生，E-mail： 786398420@qq.com；通讯作者：党淑娥（1965-），女，博士，教授，硕士生导师，E-mail：shuedang@163.com
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Reference：
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