稀土Ce对Cu-Sn-Ti-Cr合金时效性能的影响  

Effect of Rare Earth Ce on Aging Properties of Cu-Sn-Ti-Cr Alloy

作　　者：张翼航[1] Zhang Yihang(China Nonferrous Metals Processing Technology Co.,Ltd.,Luoyang 471039,China)

机构地区：[1]中色科技股份有限公司,河南洛阳471039

出　　处：《有色金属加工》2024年第4期43-46,66,共5页Nonferrous Metals Processing

摘　　要：研究采用真空熔炼方法制备了Cu-Sn-Ti-Cr和Cu-Sn-Ti-Cr-Ce两种合金,经过时效处理,对其硬度、导电率和强度进行了测试。结果表明,经过50%的冷轧和450℃时效处理60 min后,Cu-Sn-Ti-Cr-Ce合金表现出最佳的力学性能,硬度达到了290HV,导电率为20.1%IACS。通过EBSD分析,发现Ce元素的引入可以抑制晶粒的生长,细化晶粒的尺寸。相较于Cu-Sn-Ti-Cr合金,稀土元素Ce的加入使析出相尺寸变小且数量增加,改善了合金的性能。In this study,Cu-Sn-Ti-Cr and Cu-Sn-Ti-Cr-Ce alloys are prepared by vacuum melting,and their hardness,conductivity and strength are tested after aging treatment.The results show that Cu-Sn-Ti-Cr-Ce alloy exhibits the best mechanical properties after 50%cold rolling and aging treatment at 450℃for 60 min.The hardness reaches 290HV and the conductivity is 20.1%IACS.By EBSD analysis,it is found that the Ce element can inhibit the grain growth and refine the grain size.Compared with Cu-Sn-Ti-Cr alloy,the addition of rare earth element Ce decreases the size and increases the amount of precipitated phase,which improves the properties of the alloy.

关 键 词：Cu-Sn-Ti-Cr合金 力学性能 微观结构 稀土Ce 

分 类 号：TG146.1[一般工业技术—材料科学与工程]