利用Gleeble-1500D热模拟试验机对Cu-Cr-Zr-Y合金进行高温等温压缩试验,变形温度和应变速率分别为650~850℃和0.001 ~10 s-1,对合金高温热压缩过程中的变形行为进行研究.结果表明:其流变应力随应变速率的提高而增大,随变形温度的升高而减小.并根据动态材料模型绘制和分析了该合金的热加工图,得出了热变形过程的最佳工艺参数为:温度为800~850℃,应变速率范围为0.001 ~0.1 s-1.
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