Enhanced strength and electrical conductivity in ultrafine-grained Cu-Cr alloy processed by severe plastic deformation

被引：11
|
作者：
Islamgaliev, R. K. [1 ]
Nesterov, K. M. [1 ]
Champion, Y. [2 ]
Valiev, R. Z. [1 ]
机构：
[1] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, 12 K Marx St, Ufa 450000, Russia
[2] Univ Paris Est Creteil, CNRS, F-94320 Thiais, France
来源：
6TH INTERNATIONAL CONFERENCE ON NANOMATERIALS BY SEVERE PLASTIC DEFORMATION (NANOSPD6) | 2014年 / 63卷
关键词：
MECHANICAL-PROPERTIES; ZR ALLOYS; MICROSTRUCTURE;
D O I：
10.1088/1757-899X/63/1/012118
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The influence of severe plastic deformation on strength and electrical conductivity in the Cu-Cr copper alloy has been studied. Microstructure of ultrafine-grained samples was investigated by transmission electron microscopy and X-ray diffraction with special attention on precipitation of small chromium particles after various thermal treatments. Effect of dynamic precipitation leading to enhancement of strength and electrical conductivity was observed. It is shown that ultrafine-grained samples enable to demonstrate the combination of enhanced thermal stability up to 500 degrees C, high ultimate tensile strength of 790-840 MPa and enhanced electrical conductivity of 81-85% IACS. The contributions of grain boundaries and precipitates to enhanced properties of ultrafine-grained copper alloy are discussed.
引用
收藏
页数：6
相关论文
共 50 条
  • [41] Ultrafine-grained microstructures evolving during severe plastic deformation
    Ungár, T.
    Alexandrov, I.
    Zehetbauer, M.
    JOM, 2000, 52 (04) : 34 - 36
  • [42] Severe Plastic Deformation Techniques for Bulk Ultrafine-grained Materials
    Wang Chengpeng
    Li Fuguo
    Chen Bo
    Yuan Zhanwei
    Lu Hongya
    RARE METAL MATERIALS AND ENGINEERING, 2012, 41 (06) : 941 - 946
  • [43] Producing ultrafine-grained materials through severe plastic deformation
    Kawasaki, Megumi
    Langdon, Terence G.
    EMERGING MATERIALS RESEARCH, 2014, 3 (06) : 252 - 260
  • [44] High strength high electrical conductivity ultrafine-grained Al-Y alloy processed via cold drawing
    Wang, Mengmeng
    Lv, Haiyang
    Zhang, Chi
    Li, Min
    Gao, Haiyan
    Wang, Jun
    Sun, Baode
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 772
  • [45] Ultrafine-grained microstructures evolving during severe plastic deformation
    T. Ungár
    I. Alexandrov
    M. Zehetbauer
    JOM, 2000, 52 : 34 - 36
  • [46] Characterization of ultrafine-grained structures produced by severe plastic deformation
    Horita, Z
    Furukawa, M
    Nemoto, M
    Valiev, RZ
    Langdon, TG
    INVESTIGATIONS AND APPLICATIONS OF SEVERE PLASTIC DEFORMATION, 2000, 80 : 155 - 162
  • [47] Producing bulk ultrafine-grained materials by severe plastic deformation
    Ruslan Z. Valiev
    Yuri Estrin
    Zenji Horita
    Terence G. Langdon
    Michael J. Zechetbauer
    Yuntian T. Zhu
    JOM, 2006, 58 : 33 - 39
  • [48] Producing bulk ultrafine-grained materials by severe plastic deformation
    Valiev, RZ
    Estrin, Y
    Horita, Z
    Langdon, TG
    Zehetbauer, MJ
    Zhu, YT
    JOM, 2006, 58 (04) : 33 - 39
  • [49] Ultrafine-grained materials produced by severe plastic deformation: An introduction
    Valiev, RZ
    ANNALES DE CHIMIE-SCIENCE DES MATERIAUX, 1996, 21 (6-7): : 369 - 378
  • [50] Ultrafine-grained low carbon steels by severe plastic deformation
    Dobatkin, S.
    Zrnik, J.
    Mamuzic, I.
    METALURGIJA, 2008, 47 (03): : 181 - 186
12345