Annealing-induced hardening in high-pressure torsion processed CoCrNi medium entropy alloy

被引：79
|
作者：
Praveen, S. [1 ,2 ]
Bae, Jae Wung [1 ,2 ]
Asghari-Rad, Peyman [1 ,2 ]
Park, Jeong Min [1 ,2 ]
Kim, Hyoung Seop [1 ,2 ]
机构：
[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 37673, South Korea
[2] Pohang Univ Sci & Technol POSTECH, Ctr High Entropy Alloys, Pohang 37673, South Korea
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2018年 / 734卷
基金：
新加坡国家研究基金会;
关键词：
CoCrNi equiatomic alloy; Hardening; Grain boundaries; Dislocation density; High-pressure torsion; DEFORMATION; STABILITY; BEHAVIOR;
D O I：
10.1016/j.msea.2018.07.107
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanocrystalline CoCrNi equiatomic alloy processed by high-pressure torsion shows annealing induced hardening at 500 degrees C and 600 degrees C. The microstructural characterization indicates the hardening phenomenon is not because of precipitation hardening. The annealing-induced hardening is explained based on the reduced dislocation density and grain boundaries relaxation.
引用
收藏
页码：338 / 340
页数：3
相关论文
共 50 条
  • [31] Annealing-induced phase transformations and hardness evolution in Al–Cu–Al composites obtained by high-pressure torsion
    R. R. Mulyukov
    G. F. Korznikova
    K. S. Nazarov
    R. Kh. Khisamov
    S. N. Sergeev
    R. U. Shayachmetov
    G. R. Khalikova
    E. A. Korznikova
    Acta Mechanica, 2021, 232 : 1815 - 1828
  • [32] Annealing-induced recrystallization of iron after high pressure torsion at 80 K
    Shugaev, K. E.
    Degtyarev, M., V
    Voronova, L. M.
    Chashchukhina, T., I
    Gapontseva, T. M.
    LETTERS ON MATERIALS, 2022, 12 (02): : 94 - 99
  • [33] INDENTATION SIZE EFFECT IN HIGH PRESSURE TORSION PROCESSED HIGH ENTROPY ALLOY
    Hausild, Petr
    Cizek, Jakub
    Cech, Jaroslav
    Zyka, Jiri
    Kim, Hyoung Seop
    PROCEEDINGS OF THE 14TH INTERNATIONAL CONFERENCE ON LOCAL MECHANICAL PROPERTIES - LMP 2019, VOL 27, 2020, 27 : 141 - 144
  • [34] Age-hardening of an Al-Li-Cu-Mg alloy (2091) processed by high-pressure torsion
    Lee, Seungwon
    Horita, Zenji
    Hirosawa, Shoichi
    Matsuda, Kenji
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 546 : 82 - 89
  • [35] Strain hardening behavior of a two-phase Cu-Ag alloy processed by high-pressure torsion
    Tian, Y. Z.
    Wu, S. D.
    Zhang, Z. F.
    Figueiredo, R. B.
    Gao, N.
    Langdon, T. G.
    SCRIPTA MATERIALIA, 2011, 65 (06) : 477 - 480
  • [36] The evolution of homogeneity in an aluminum alloy processed using high-pressure torsion
    Xu, Cheng
    Horita, Zenji
    Langdon, Terence G.
    ACTA MATERIALIA, 2008, 56 (18) : 5168 - 5176
  • [37] Grain refinement and superplasticity in an aluminum alloy processed by high-pressure torsion
    Sakai, G
    Horita, Z
    Langdon, TG
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 393 (1-2): : 344 - 351
  • [38] An investigation of microtexture evolution in an AlMgSi alloy processed by high-pressure torsion
    Loucif, Aicha
    Baudin, Thierry
    Brisset, Francois
    Figueiredo, Roberto B.
    Chemam, Rafik
    Langdon, Terence G.
    TEXTURES OF MATERIALS, PTS 1 AND 2, 2012, 702-703 : 165 - +
  • [39] Development of structural heterogeneities in a magnesium alloy processed by high-pressure torsion
    Figueiredo, Roberto B.
    Langdon, Terence G.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (13-14): : 4500 - 4506
  • [40] Achieving homogeneity in a Cu–Zr alloy processed by high-pressure torsion
    Jittraporn Wongsa-Ngam
    Megumi Kawasaki
    Terence G. Langdon
    Journal of Materials Science, 2012, 47 : 7782 - 7788
12345