Impact of Short-Range Clustering on the Multistage Work-Hardening Behavior in Cu-Ni Alloys

被引:30
作者
Han, Dong
He, Jin-Xian
Guan, Xian-Jun
Zhang, Yan-Jie
Li, Xiao-Wu [1 ]
机构
[1] Northeastern Univ, Minist Educ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Shenyang 110819, Liaoning, Peoples R China
基金
中国国家自然科学基金;
关键词
Cu-Ni alloy; work-hardening; short-range clustering; stacking-fault energy; planar slip; dislocation structure; STACKING-FAULT ENERGY; MECHANICAL-PROPERTIES; GRADIENT STRUCTURE; MICROSTRUCTURAL EVOLUTION; DEFORMATION-BEHAVIOR; HIGH-STRENGTH; AL ALLOYS; DUCTILITY; FCC; MN;
D O I
10.3390/met9020151
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The work-hardening behavior of Cu-Ni alloys with high stacking-fault energies (SFEs) is experimentally investigated under uniaxial compression. It is found that, with the increase of Ni content (or short-range clustering, SRC), the flow stress of Cu-Ni alloys is significantly increased, which is mainly attributed to an enhanced contribution of work-hardening. An unexpected multistage (including Stages A, B, and C) work-hardening process was found in this alloy, and such a work-hardening behavior is essentially related to the existence of SRC structures in alloys. Specifically, during deformation in Stage B (within the strain range of 0.04-0.07), the forming tendency to planar-slip dislocation structures becomes enhanced with an increase of SRC content (namely, increase of Ni content), leading to the occurrence of work-hardening rate recovery in the Cu-20at.% Ni alloy. In short, increasing SRC in the Cu-Ni alloy can trigger an unexpected multistage work-hardening process, and thus improve its work-hardening capacity.
引用
收藏
页数:10
相关论文
共 40 条
  • [1] A NEW MECHANISM OF WORK-HARDENING IN THE LATE STAGES OF LARGE-STRAIN PLASTIC-FLOW IN FCC AND DIAMOND CUBIC-CRYSTALS
    ARGON, AS
    HAASEN, P
    [J]. ACTA METALLURGICA ET MATERIALIA, 1993, 41 (11): : 3289 - 3306
  • [2] Strain hardening regimes and microstructural evolution during large strain compression of low stacking fault energy fcc alloys that form deformation twins
    Asgari, S
    ElDanaf, E
    Kalidindi, SR
    Doherty, RD
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1997, 28 (09): : 1781 - 1795
  • [3] Intersectant coherent twin boundaries governed strong strain hardening behavior in nanocrystalline Cu
    Cao, Z. H.
    Sun, W.
    Yang, X. B.
    Zhao, J. W.
    Ma, Y. J.
    Meng, X. K.
    [J]. INTERNATIONAL JOURNAL OF PLASTICITY, 2018, 103 : 81 - 94
  • [4] Breaking through the strength-ductility trade-off dilemma in an Al-Si-based casting alloy
    Dang, B.
    Zhang, X.
    Chen, Y. Z.
    Chen, C. X.
    Wang, H. T.
    Liu, F.
    [J]. SCIENTIFIC REPORTS, 2016, 6
  • [5] ON THE ORIGIN OF PLANAR SLIP IN FCC ALLOYS
    GEROLD, V
    KARNTHALER, HP
    [J]. ACTA METALLURGICA, 1989, 37 (08): : 2177 - 2183
  • [6] The influence of strain rate, deformation temperature and stacking fault energy on the mechanical properties of Cu alloys
    Gong, Y. L.
    Wen, C. E.
    Wu, X. X.
    Ren, S. Y.
    Cheng, L. P.
    Zhu, X. K.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 583 : 199 - 204
  • [7] Dislocation and twin substructure evolution during strain hardening of an Fe-22 wt.% Mn-0.6 wt.% C TWIP steel observed by electron channeling contrast imaging
    Gutierrez-Urrutia, I.
    Raabe, D.
    [J]. ACTA MATERIALIA, 2011, 59 (16) : 6449 - 6462
  • [8] Evaluation of the role of deformation twinning in work hardening behavior of face-centered-cubic polycrystals
    Hamdi, Farzad
    Asgari, Sirous
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2008, 39A (02): : 294 - 303
  • [9] Influence of stacking fault energy and short-range ordering on dynamic recovery and work hardening behavior of copper alloys
    Hamdi, Farzad
    Asgari, Sirous
    [J]. SCRIPTA MATERIALIA, 2010, 62 (09) : 693 - 696
  • [10] A good strength-ductility match in Cu-Mn alloys with high stacking fault energies: Determinant effect of short range ordering
    Han, D.
    Wang, Z. Y.
    Yan, Y.
    Shi, F.
    Li, X. W.
    [J]. SCRIPTA MATERIALIA, 2017, 133 : 59 - 64