稀土钇对无氧铜铸锭组织和性能的影响  

Effect of Rare Earth Yttrium on Microstructure and Properties ofOxygen-free Copper Ingot

作　　者：曾延琦 吴语 郭玉松 余辉辉[1,2] 黄红华 邹晋 马力 董道伟[3] ZENG Yanqi;WU Yu;GUO Yusong;YU Huihui;HUANG Honghua;ZOU Jin;MA Li;DONG Daowei(Jiangxi Key Laboratory of Advanced Copper-based Materials,Nanchang 330096,Jiangxi,China;Institute of Applied Physics,Jiangxi Academy of Sciences,Nanchang 330096,Jiangxi,China;Jiangxi Naile Copper Industry Co.,Ltd,Yingtan 335211,Jiangxi,China)

机构地区：[1]铜基新材料江西省重点实验室,江西南昌330096 [2]江西省科学院应用物理研究所,江西南昌330096 [3]江西耐乐铜业有限公司,江西鹰潭335211

出　　处：《热处理技术与装备》2024年第5期36-39,共4页Heat Treatment Technology and Equipment

基　　金：江西省科学院省级财政科研项目经费包干制试点示范项目(2022YSGB22021);江西省学科学术带头人项目(20232BCJ22053)。

摘　　要：采用直读光谱仪、氧氮氢分析仪、显微硬度计和涡流电导率仪等,研究了稀土Y对无氧铜铸锭组织、力学性能和导电性能的影响规律。结果表明,添加稀土Y可以显著降低无氧铜铸坯中O、S、P和Zn等杂质元素的含量;随着稀土Y含量的提高,试验铸锭的晶粒尺寸先增大后减小且分布更均匀,维氏硬度先降低后升高,导电率则先升高后降低。The effects of rare earth Y on the microstructure,mechanical properties and conductivity of oxygen-free copper ingots were studied using the direct reading spectrometer,oxygen nitrogen hydrogen analyser,microhardness tester and eddy current conductivity tester,etc.The results show that of adding rare earth Y can significantly reduce the content of impurity elements such as O,S,P and Zn in oxygen-free copper billets.With the increase of rare earth Y content,the grain size of the experimental ingot first increases and then decreases,and becomes more uniform,the Vickers hardness of the test ingot first decreases and then gradually increases,the conductivity first increases and then gradually decreases.

关 键 词：稀土钇 无氧铜 化学成分 显微组织 导电率 

分 类 号：TG162.71[金属学及工艺—热处理]