稀土Y对无氧铜加工材性能的影响  

Effect of Rare Earth Yttrium on Properties o

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6期35-39,共5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：采用显微维氏硬度计、涡流电导率仪和电化学工作站等,研究了稀土Y对无氧铜加工材力学性能、导电性能和耐蚀性能的影响及其作用规律。结果表明,随着稀土Y含量的增加,轧制加工态试验样品的维氏硬度先降低后逐渐升高,成品退火态试验样品的维氏硬度逐渐升高,样品退火前后维氏硬度的降低率逐渐减小。随着稀土Y含量的增加,轧制加工态和成品退火态试验样品的电导率先升高后逐渐降低,成品退火态试验样品的腐蚀电位E_(corr)和腐蚀电流密度icorr均先下降后上升再下降,电化学阻抗则先上升后下降。添加0.006%稀土Y的无氧加工材可同时提高抗高温软化性能、导电性能和耐腐蚀性能,但在硬度方面略为不足。The effects of rare earth Y on the mechanical properties,electrical conductivity and corrosion resistance of oxygen free copper processing materials were studied by micro Vickers hardness tester,eddy current conductivity meter and electrochemical workstation.The results show that with the increase of rare earth Y content,the Vickers hardness of rolling test sample decreases first and then increases gradually,and the Vickers hardness of finished annealed test sample increases gradually,and the decreasing rate of Vickers hardness of sample before and after annealing decreases gradually.With the increase of rare earth Y content,the conductivity of the rolled and annealed samples first increases and then gradually decreases,the corrosion potential E_(corr)and the corrosion current density i_(corr)of the annealed samples first decreases and then increases and then decreases,and the electrochemical impedance first increases and then decreases.The addition of 0.006%rare earth Y can improve the high temperature softening resistance,electrical conductivity and corrosion resistance at the same time,but the hardness is slightly insufficient.

关 键 词：稀土Y 无氧铜材 热管 性能 

分 类 号：TG115.6[金属学及工艺—物理冶金]