CuCr25合金的机械变形及性能  

Mechanical Deformation and Properties of CuCr25 Alloy

作　　者：周志明[1] 蒋鹏[1] 王亚平[1] 

机构地区：[1]中国科学院金属研究所,辽宁沈阳110016

出　　处：《稀有金属材料与工程》2005年第5期830-832,共3页Rare Metal Materials and Engineering

基　　金：国家高技术研究发展计划资助项目(2001AA320714)

摘　　要：采用真空熔炼制备的CuCr25合金,在低应变速率下冷轧变形,研究了组织及性能变化。结果表明:CuCr25合金的电导率随着轧制变形程度的增大,开始略有上升,然后不断下降,经过一定量的大变形后,电导率又有上升;CuCr25合金的硬度不断上升,CuCr25合金硬度的上升主要是由于Cu基硬度的上升;经过大量的冷轧变形后,Cr相成纤维状和条带状,并有空洞生成;CuCr25合金在室温下具有超塑性。CuCr25 alloy is prepared by vacuum induction melting and is rolled at low strain rate. The experimental results show that the electrical conductivity first increases, then it decreases gradually with the deformation. After deforming to certain degree, the conductivity increases again and Cr phases are deformed to ribbons or fibrous. The work hardening of the copper matrix leads to the hardness increase of the CuCr25 alloy. CuCr25 alloy has a superplasticity at room temperature.

关 键 词：CuCr25合金 高强高导 冷轧 超塑性 

分 类 号：TG113.2[金属学及工艺—物理冶金]