摘要
研究了时效参数和变形量对Cu-0.35Cr-0.038Zr-0.055Ce合金性能的影响。结果表明:合金经920℃×1h固溶后,在500℃时效2h可获得较高的导电率和硬度;时效前对合金加以冷变形可加速第二相的析出,如合金经60%变形后在500℃时效0.5h时,导电率可达69.0%IACS,显微硬度达152.8HV,而固溶后直接时效导电率仅为56.3%I-ACS,显微硬度为130HV;微量稀土元素Ce的加入,使合金的显微硬度提高了18～25HV,而导电率略有降低。
The effect of aging parameter and deformation on the property of Cu-0.35Cr-0.038Zr-0.055Ce alloy after aging was studied. The result shows that, after solution at 920℃ for 1h ,the alloy can obtain higher electrical conductivity and microhardness aged at 500℃ for 2h. The process of precipitation of the secondary phase can be accelerated with cold deformation before aging, Upon aging at 500℃ for 0.5h after 60% cold deformation, the values of electrical conductivity and microhardness are 69.0%IACS and 152.8 HV respectively, but they are only 56.3%IACS and 130HV upon directly aging after solution. With the addition of a trace of rare earth element Ce, the value of microhardness of Cu-0.35Cr-0.038Zr alloy increases 18~25 HV,while the value of electrical conductivity drops a little.
出处
《热加工工艺》
CSCD
北大核心
2004年第6期3-4,59,共3页
Hot Working Technology
基金
国家高技术研究发展计划资助项目(2002AA331112)
关键词
CU-CR-ZR合金
稀土
时效
冷变形
导电率
显微硬度
Cu-Cr-Zr alloy
rare earth
aging
cold deformation
electrical conductivity
microhardness
