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中文摘要：
通过冷变形拉拔结合中间热处理制备了纤维相增强的Cu-15wt%Cr合金,研究了变形过程对组织形态和力学性能的影响。用SEM观察分析了材料的组织结构。研究表明,通过形变原位复合技术,可以获得抗拉强度大于1000MPa,导电率大于71%IACS的形变Cu-15wt%Cr原位复合材料。通过控制形变量以及调整中间热处理和稳定化热处理规范,可以获得不同强度和导电率的组合。形变量越大,纤维越均匀细化。力学性能和电阻率测试结果表明,随形变量增加,强度提高,同时电阻率增大。
英文摘要：
The Cu-15wt% Cr in situ composite was prepared by cold drawing and intermediate heat treatments. The evolution of filamentary microstructure and mechanical properties were investigated for the alloy at different draw ratio. The structure of the composite was examined by SEM. The results show that the in-situ composite with ab 〉 1000MPa,conductivity（IACS） 〉 71% can be obtained through the in-situ production technique. The Cu-15wt% Cr alloy which have good combination of different strength and conductivity can be obtained through controlling reducing area, adjusting intermediate heat treatment and stabilizing treatment. The fine ribbons are finer and more uniform with the strain increasing. The experimental results show that the tensile strength and electrical resisitivity increase with the increasing of deformation strain.
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