时效状态对Cu-Cr-Zr系合金性能的影响  

Effect of Aging Conditions on the Properties of Cu-Cr-Zr System Alloys

作　　者：张真[1] 陆冰沪 夏承东 张睿[4] 陈畅[1] 汪明朴[4] 

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230001 [2]安徽铜冠铜箔有限公司,安徽池州247100 [3]银邦金属复合材料股份有限公司技术研究院,江苏无锡214145 [4]中南大学材料科学与工程学院,湖南长沙410083

出　　处：《有色金属材料与工程》2017年第2期67-72,共6页Nonferrous Metal Materials and Engineering

基　　金：国家自然科学基金青年基金项目(51401072)

摘　　要：采用不同时效状态和随后形变热处理工艺制备了Cu-Cr-Zr系合金,采用微观组织观察、硬度和导电率测试等手段研究了不同时效状态对双级时效Cu-Cr-Zr系合金性能的影响.结果表明:欠时效+冷轧+时效工艺和峰时效+冷轧+时效工艺制备的Cu-Cr-Zr-Mg-Si和Cu-Cr-Zr-Ni-Si合金均可获得力学性能和电学性能的优良组合.其中:欠时效+冷轧+时效工艺所制备的合金综合性能更优,但加工热处理过程中性能变化剧烈,材料生产过程中性能均匀性不易控制;峰时效+冷轧+时效工艺制备的合金综合性能极其稳定,易于在生产中控制.不同工艺下的合金性能差异是由析出相与位错的交互作用机制不同造成的.Cu-Cr-Zr system alloys were manufactured by different aging processes and sequent thermomechanical treatments. The properties of the alloys were investigated through measuring the microhardness, electrical conductivity and observing the microstructure of alloys. The results show that both the combining of under-aging,cold rolling and second aging process and the combining of peak-aging, cold rolling and second aging process can manufacture Cu-Cr-Zr-Mg-Si alloy and Cu-Cr-Zr-Ni-Si alloy with high hardness and high conductivity. The mechanical properties and electrical properties of Cu-Cr-Zr system alloys is higher than these manufactured by under-aging, cold rolling and second aging process. However, it will lead to the properties change dramatically and be difficult to control the uniformity of properties in the course of under-aging,cold rolling and second aging processing.

关 键 词：Cu—Cr—Zr合金 欠时效 峰时效 冷轧 析出相 

分 类 号：TG146.11[一般工业技术—材料科学与工程] TG166.2[金属学及工艺—金属材料]