Cu-15Fe-Ce轧制形变合金组织和性能研究  

Study on the Microstructure and Properties of Cu-15Fe-Ce Rolled Deformation Alloy

作　　者：黄雅盼 邹晋[1] 胡强[1] 陆德平[1] 黄国杰 余辉辉 郭玉松[1] HUANG Yapan;ZOU Jin;HU Qiang;LU Deping;HUANG Guojie;YU Huihui;GUO Yusong(Jiangxi Key Laboratory of Advanced Copper-based Materials,Institute of Applied Physics,Jiangxi Academy of Sciences,Nanchang 330096,China;China Nonferrous Metal Mining(Group)Co.,Ltd.,Beijing 100029,China)

机构地区：[1]铜基新材料江西省重点实验室,江西省科学院应用物理研究所,南昌330096 [2]中国有色矿业集团有限公司,北京100029

出　　处：《有色金属工程》2024年第11期76-84,共9页Nonferrous Metals Engineering

基　　金：江西省重大科技研发专项(20212AAE01003);江西省学科学术带头人领军人才(20232BCJ22053);江西省科学院(2022YJC2013)。

摘　　要：采用真空感应熔炼制备了Cu-15Fe-Ce合金,并结合冷轧和时效工艺制备合金带材。通过电镜微观组织观察和能谱分析,拉伸性能和导电率测试,研究了不同Ce含量对Cu-15Fe合金的显微组织、力学和电学性能的影响规律。结果表明,微量稀土Ce的添加有利于细化Cu-15Fe合金的富铁相,减小轧制后铁纤维的间距,从而激发不同的强化机制,改善合金的机电性能和高温抗软化性能。然而,过量的Ce元素在晶界处形成网状分布的金属间化合物,降低合金的整体性能。当Ce含量为0.005%时,Cu-15Fe-Ce经过500℃×60 min时效处理后,合金带材达到最佳综合性能。Cu-15Fe-Ce alloy was prepared by vacuum induction melting,and the alloy strip was prepared by cold rolling and aging in this paper.The effects of different Ce contents on the microstructure,mechanical and electrical properties of Cu-15Fe alloy were studied by electron microscope observation,energy spectrum analysis,tensile tests and conductivity tests.The results show that the addition of trace amounts of rare earth cerium is beneficial for refining the Fe-rich phase of Cu-15Fe alloy,reduce the distance between iron fibers after rolling,stimulate different strengthening mechanisms,improve the mechanical and electrical properties as well as high-temperature softening resistance of the alloy.However,an excessive amount of Ce forms a network of intermetallic compounds at the grain boundaries,which reduces the overall properties of the alloy.When the Ce content is 0.005%,the conductivity of Cu-15Fe-Ce alloy strip achieves the best comprehensive properties after aging treatment at 500℃for 60 minutes.

关 键 词：铜铁合金 稀土 机电性能 高温抗软化性 

分 类 号：TG135[一般工业技术—材料科学与工程] TB34[金属学及工艺—合金]