摘要
通过真空熔炼的方法制备了Cu-0.80Cr-0.30Zr-0.03P合金,研究了合金经冷变形及固溶时效处理后的导电率和显微硬度等性能,绘制了Cu-0.80Cr-0.30Zr-0.03P合金的相变动力学(S)曲线以及等温转变动力学(TTT)曲线,同时分析了合金的时效析出相种类。结果表明:Cu-0.8Cr-0.30Zr-0.03P合金的最佳热处理工艺为900℃×1 h固溶处理,之后80%冷变形,最后450℃时效4 h,此时合金的导电率、显微硬度、抗拉强度和伸长率分别为84.03%·IACS、187.7 HV0.2、428 MPa和9.8%,对合金时效后的衍射花样进行标定,确定析出相为Cu10Zr7。
Cu-0.80 Cr-0.30 Zr-0.03 P alloy was prepared by vacuum melting.The electrical conductivity and microhardness of the alloy after cold deformation and solution aging treatment were studied.The phase transformation kinetics(S)curves and isothermal transformation kinetics(TTT)curves of the Cu-0.80 Cr-0.30 Zr-0.03 P alloy were plotted.Meanwhile,the types of aging precipitated phases of the alloy were analyzed.The results show that the optimum heat treatment process for the Cu-0.8 Cr-0.30 Zr-0.03 P alloy is solution treatment at 900℃for 1 h,then cold deformation by 80%,and finally aging at 450℃for 4 h.The electrical conductivity,hardness,tensile strength and elongation of the alloy are 84.03%·IACS,187.7 HV0.2,428 MPa and 9.8%,respectively.The diffraction pattern of the alloy after aging is indexed and the precipitated phase is determined to be Cu10Zr7.
作者
耿永锋
张毅
田保红
柴哲
王冰洁
刘勇
宋克兴
GENG Yong-feng;ZHANG Yi;TIAN Bao-hong;CHAI Zhe;WANG Bing-jie;LIU Yong;SONG Ke-xing(School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang471023,China;Henan Province Collaborative Innovation Center of Nonferrous Metals,Luoyang471023,China;HenanProvince Key Laboratory of Nonferrous Materials Science and Processing Technology,Luoyang471023,China)
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2019年第8期69-75,共7页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金(U1704143)
河南省高校科技创新人才支持计划(18HASTIT024)
