A high strength and high electrical conductivity CuCrZr alloy prepared by aging and subsequent cryorolling

被引：21
|
作者：
Li, G. Y. [1 ]
Li, S. Y. [1 ]
Li, L. [1 ]
Zhang, D. T. [1 ]
Wang, J. D. [2 ]
Tong, Y. X. [1 ,2 ]
机构：
[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Int Joint Lab Adv Bulk Nanomat Innovat Applicat, Harbin 150001, Peoples R China
[2] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China
来源：
VACUUM | 2021年 / 190卷
基金：
国家重点研发计划;
关键词：
Cu alloy; Cryorolling; Microstructure; Mechanical property; Conductivity; CR-ZR ALLOY; CU-AG; MICROSTRUCTURE; OPTIMIZATION; MECHANISMS; DUCTILITY; AL;
D O I：
10.1016/j.vacuum.2021.110315
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present study, high strength and high electrical conductivity Cu-0.65Cr-0.07Zr (wt.%) was prepared by aging and subsequent cryorolling. The influence of processing on microstructure and properties of alloy were investigated. After aging, the fine and uniformly dispersed nano-precipitates appeared in the matrix. The cry-orolled sample was characterized by a finer microstructure than the sample rolled at room temperature. The desired balance between the tensile strength of 712 MPa and electrical conductivity of 70.2% was obtained in the sample aged and cryorolled for 90% reduction. The combination of aging and subsequent cryorolling is effective in optimizing mechanical strength and electrical conductivity of CuCrZr alloy due to grain refinement, precip-itation and twinning.
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页数：5
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