Effect of Co content on the mechanical properties of A2 and B2 phases in AlCoxCrFeNi high-entropy alloys

被引：72
|
作者：
Kang, Minju [1 ]
Lim, Ka Ram [1 ]
Won, Jong Woo [1 ]
Na, Young Sang [1 ]
机构：
[1] Korea Inst Mat Sci, 797 Changwondae Ro, Chang Won 642831, Gyeongnam, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 769卷
基金：
新加坡国家研究基金会;
关键词：
High entropy alloy; Indentation; Hardness; PRINCIPAL ELEMENTS; MICROSTRUCTURE; NANOINDENTATION; EVOLUTION; STRENGTH; SYSTEM; STEELS; SIZE;
D O I：
10.1016/j.jallcom.2018.07.346
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of entropy on the strengths of the disordered and ordered phases was investigated. Cost effective AlCoxCrFeNi (x = 0, 0.25, 0.5, 0.75, and 1) high-entropy alloys were fabricated reducing Co content. The strength was considerably reduced when the Co content was zero. This was attributed to the low hardness of the A2 phase due to reduced configurational entropy compared with quinary system. On the other hand, the ordered B2 phase showed the opposite tendency. This result shows that the configurational entropy causes opposing effects on disordered and ordered phases, and the importance of considering the effect of entropy on each phase when the number of elements changed, and an alloy is composed of two or more phases, in particular, having BCC structure. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：808 / 812
页数：5
相关论文
共 50 条
  • [1] B2 structure of high-entropy alloys with addition of Al
    Li, C.
    Zhao, M.
    Li, J.C.
    Jiang, Q.
    Journal of Applied Physics, 2008, 104 (11):
  • [2] B2 structure of high-entropy alloys with addition of Al
    Li, C.
    Zhao, M.
    Li, J. C.
    Jiang, Q.
    JOURNAL OF APPLIED PHYSICS, 2008, 104 (11)
  • [3] The BCC/B2 Morphologies in AlxNiCoFeCr High-Entropy Alloys
    Ma, Yue
    Jiang, Beibei
    Li, Chunling
    Wang, Qing
    Dong, Chuang
    Liaw, Peter K.
    Xu, Fen
    Sun, Lixian
    METALS, 2017, 7 (02)
  • [4] Thermal and Elastic Properties of an A2/B2 Refractory High Entropy Superalloy and Its Constituent Phases
    Senkov, Oleg N.
    Kube, Sebastian A.
    Drazin, John W.
    Soni, Vishal
    Miracle, Daniel B.
    Butler, Todd M.
    Pollock, Tresa M.
    Banerjee, Rajarshi
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2024, 55 (08): : 2704 - 2717
  • [5] Mechanical Properties and Formation of Phases in High-Entropy CrFeNiCuCoAlx Alloys
    M. V. Karpets
    O. M. Myslyvchenko
    O. S. Makarenko
    V. F. Gorban’
    M. O. Krapivka
    Powder Metallurgy and Metal Ceramics, 2015, 54 : 344 - 352
  • [6] Effect of B Content on Microstructure and Properties of CrFeNiAlSi High-Entropy Alloys
    Wen, Ying
    Chen, Jian
    Li, Gang
    ACS OMEGA, 2025, 10 (08): : 7813 - 7821
  • [7] Effects of B2 ordered structure on the mechanical properties of TiZrHfCoNiCu high-entropy alloy
    Liu, Lichen
    Yang, Weiming
    Fang, Meng
    Li, Hongyang
    Mo, Jinyong
    Liu, Haishun
    Li, Fuqiang
    Song, Ning
    MATERIALS TODAY COMMUNICATIONS, 2024, 39
  • [8] Improving mechanical properties of an FCC high-entropy alloy by γ′ and B2 precipitates strengthening
    Li, Ziyong
    Fu, Liming
    Peng, Jian
    Zheng, Han
    Ji, Xinbo
    Sun, Yanle
    Ma, Shuo
    Shan, Aidang
    MATERIALS CHARACTERIZATION, 2020, 159 (159)
  • [9] Effect of Aluminum Content on Microstructure and Mechanical Properties of High-Entropy AlxCoCuNiTi Alloys
    Wang, Z.
    Zhou, J.
    Ma, M.
    Zhao, L.
    METAL SCIENCE AND HEAT TREATMENT, 2021, 63 (5-6) : 297 - 303
  • [10] Effect of Ti content on microstructure and mechanical properties of CuCoFeNi high-entropy alloys
    Xi-cong Ye
    Tong Wang
    Zhang-yang Xu
    Chang Liu
    Hai-hua Wu
    Guang-wei Zhao
    Dong Fang
    International Journal of Minerals, Metallurgy and Materials, 2020, 27 : 1326 - 1331
12345