采用真空热压烧结工艺成功制备WC体积分数为0、10％、20％的弥散铜-WC复合材料,分析了其显微组织和性能;并利用Gleeble-1500D热力模拟试验机,研究了该复合材料在变形温度为350 ～ 750℃,应变速率为0.01 ～5 s-1条件下的热变形行为.结果表明:复合材料的相对密度在95％以上,随着WC含量的增加,其导电率下降、硬度升高.弥散铜-WC复合材料高温流变应力-应变曲线主要以动态再结晶机制为特征,峰值应力随变形温度的降低或应变速率的升高而增加;高温变形条件下弥散铜-WC复合材料流变应力本构方程可以用双曲线正弦方程和Z参数描述;其热变形激活能分别为193.81,208.35和229.17 kJ/mol.
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