High strength and good electrical conductivity in Cu-Cr alloys processed by severe plastic deformation

被引：96
|
作者：
Dobatkin, S. V. [1 ,2 ]
Gubicza, J. [3 ]
Shangina, D. V. [1 ,2 ]
Bochvar, N. R. [1 ]
Tabachkova, N. Y. [2 ]
机构：
[1] Russian Acad Sci, AA Baikov Inst Met & Mat Sci, Moscow 119991, Russia
[2] Natl Univ Sci & Technol MISiS, Lab Hybrid Nanostruct Mat, Moscow 119049, Russia
[3] Eotvos Lorand Univ, Dept Mat Phys, Budapest, Hungary
来源：
MATERIALS LETTERS | 2015年 / 153卷
基金：
匈牙利科学研究基金会; 俄罗斯基础研究基金会;
关键词：
Cu-Cr alloys; High pressure torsion; Ultrafine-grained structure; Hardness; Electrical properties; X-ray techniques; HIGH-PRESSURE TORSION; ZR ALLOY; CHROMIUM-BRONZE;
D O I：
10.1016/j.matlet.2015.03.144
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultrafine-grained (UFG) microstructures in Cu-Cr alloys were processed by high pressure torsion (HPT). The improved hardness was accompanied by a reduced electrical conductivity due to the large amount of grain boundaries. The effect of heat-treatment after HPT-processing on the hardness and the electrical conductivity was studied for different chromium contents (0.75, 9.85 and 27 wt%). For low Cr concentration (0.75%) the electrical conductivity increased considerably above 250 degrees C, however the hardness decreased concomitantly. At the same time, for high Cr content (9.85% and 27%) the hardness was only slightly reduced even at 500 degrees C, while the electrical conductivity increased to a similar level as before HPT due to grain boundary relaxation and decomposition of Cu-Cr solid solution. Our study demonstrates the capability of SPD-processing and subsequent heat-treatment to achieve a combination of high strength and good electrical conductivity. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：5 / 9
页数：5
相关论文
共 50 条
  • [41] Mechanical properties of fine-grained flame resistant magnesium alloys processed with severe plastic deformation
    Takasu H.
    Kimura K.
    Yukutake E.
    Ito T.
    Noda M.
    Somekawa H.
    Tsuchiya K.
    Kuramoto S.
    Keikinzoku Yosetsu/Journal of Light Metal Welding, 2022, 60 (02): : 34 - 41
  • [42] Regularities of Microstructure Evolution in a Cu-Cr-Zr Alloy during Severe Plastic Deformation
    Bodyakova, Anna
    Tkachev, Maksim
    Raab, Georgy, I
    Kaibyshev, Rustam
    Belyakov, Andrey N.
    MATERIALS, 2022, 15 (16)
  • [43] Formation of fully austenitic ultrafine-grained high strength state in metastable Cr-Ni-Ti stainless steel by severe plastic deformation
    Dobatkin, S. V.
    Rybalchenko, O. V.
    Enikeev, N. A.
    Tokar, A. A.
    Abramova, M. M.
    MATERIALS LETTERS, 2016, 166 : 276 - 279
  • [44] Microstructure and Properties of Cu - Cr - Zr Alloys After Plastic Deformation and Aging
    Bodyakova, A. I.
    Mishnev, R. V.
    Kaibyshev, R. O.
    METAL SCIENCE AND HEAT TREATMENT, 2024, 66 (5-6) : 286 - 293
  • [45] Accelerated Diffusion and Phase Transformations in Co-Cu Alloys Driven by the Severe Plastic Deformation
    Straumal, Boris B.
    Mazilkin, Andrei A.
    Baretzky, Brigitte
    Schuetz, Gisela
    Rabkin, Eugen
    Valiev, Ruslan Z.
    MATERIALS TRANSACTIONS, 2012, 53 (01) : 63 - 71
  • [46] Severe plastic deformation on powder metallurgy Cu-Al-Ni shape memory alloys
    Lopez, G. A.
    Lopez-Ferreno, I.
    Kilmametov, A. R.
    Breczewski, T.
    Straumal, B. B.
    Baretzky, B.
    No, M. L.
    Juan, J. San
    MATERIALS TODAY-PROCEEDINGS, 2015, 2 : 747 - 750
  • [47] Simultaneously enhancing the strength and electrical conductivity of Cu-Ni-Sn alloy through plastic deformation of an intermetallic compound
    Jiang, Haowen
    Peng, Lijun
    Mi, Xujun
    Guo, Hong
    Xie, Haofeng
    Liu, Dongmei
    Liu, Feng
    Yang, Zhen
    MATERIALS & DESIGN, 2023, 235
  • [48] Development of complex methods, combining thermal treatment with severe plastic deformation, for processing of high-strength nanostructured Cu-1%Cr-0.7%Al alloy
    Alexandrov, IV
    Latysh, VV
    Hong, SI
    Faizova, SN
    Polovnikov, VM
    NANOMATERIALS BY SEVERE PLASTIC DEFORMATION, 2006, 503-504 : 515 - 520
  • [49] Nanocrystallization of Zr-Cu-Ni-Al-Au glassy alloys during severe plastic deformation
    Yamada, Masahiro
    Kamisato, Ryo
    Yamasaki, Tohru
    Adachi, Hiroki
    Tsuchiya, Koichi
    Yokoyama, Yoshihiko
    6TH INTERNATIONAL CONFERENCE ON NANOMATERIALS BY SEVERE PLASTIC DEFORMATION (NANOSPD6), 2014, 63
  • [50] Influence of deformation during T10 treatment on microstructure/hardness/electrical conductivity of Cu-Cr alloy produced in non-protected atmosphere
    Hosseini, E.
    Habibollahzadeh, A.
    Erfanmanesh, M.
    Mostajabodave, H.
    Kazeminezhad, M.
    MATERIALS SCIENCE AND TECHNOLOGY, 2009, 25 (10) : 1283 - 1288
12345