摘要
采用大气熔铸与形变原位复合的方法制备了Cu-10Cr-2Zr形变原位复合材料,测定了不同应变量和中间热处理温度下的显微硬度、抗拉强度和电导率,并研究了Cu-10Cr-2Zr原位复合材料的显微组织。结果表明:Cu-10Cr-2Zr合金通过中间热处理和大变形,合金元素Cr及Zr由铸态不连续的枝晶组织演变成纤维组织,且随应变量的增加,合金的显微硬度升高;通过调整中间热处理温度,可以获得抗拉强度≥950MPa,电导率≥73%IACS,中间热处理温度在450～500℃为宜。
Cu-10Cr-2Zr in-situ deformation composite was prepared by the forging in air and the in-situ production technique.The mircrohardness,tensile strength,microstructure and electrical conductivity Cu-10Cr-2Zr in-situ deformation composite were studied at different strain capacity and intermediate heat treatment temperature.The results showed that Cr and Zr phases of composites changed into fibers from as-cast dendrites with the increasing of the strain capacity,Cu-10Cr-2Zr in-situ deformation composite can obta...
出处
《铸造技术》
CAS
北大核心
2009年第3期359-361,共3页
Foundry Technology
基金
国家自然科学基金(50571035)
国家高新技术研究发展计划(863计划)资助项目(2006AA03Z528)
关键词
铜基形变原位复合材料
抗拉强度
应变量
电导率
Cu-based deformation in-situ composites
Tensile strength
Strain capacity
Electrical conductivity
