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
  • [31] Crystallographic and Compositional Evolution of Ordered B2 and Disordered BCC Phases During Isothermal Annealing of Refractory High-Entropy Alloys
    Dasari, Sriswaroop
    Sharma, Abhishek
    Soni, Vishal
    Kloenne, Zachary
    Fraser, Hamish
    Banerjee, Rajarshi
    MICROSCOPY AND MICROANALYSIS, 2023, 29 (01) : 303 - 313
  • [32] Microstructure and enhanced tensile properties of AlCoxCrFeNi high entropy alloys with high Co content fabricated by laser melting deposition
    Zhao, Senlin
    Xin, Dongqun
    Chen, Xizhang
    Stasic, Jelena
    Trtica, Milan
    Siddiquee, Arshad Noor
    Mohan, Sanjay
    JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 917
  • [33] Effects of reducing Co content on microstructure and mechanical properties of CoxCrFeNiTi0.3 high-entropy alloys
    Hung, Wei-Jhe
    Shun, Tao-Tsung
    Chiang, Cheng-Ju
    MATERIALS CHEMISTRY AND PHYSICS, 2018, 210 : 170 - 175
  • [34] Effect of Aluminum Content on Microstructure and Tribological Properties of CoCrFeNi2-Based High-Entropy Alloys
    Zhang, Mengdi
    Zhang, Gaimei
    Luo, Chongwei
    Xu, Hanqing
    RARE METAL MATERIALS AND ENGINEERING, 2025, 54 (02) : 343 - 353
  • [35] Effects of Cr Content on Microstructure and Mechanical Properties of WMoNbTiCr High-Entropy Alloys
    JianHui Yan
    MaoJian Li
    Kailing Li
    JingWen Qiu
    Yuanjun Guo
    Journal of Materials Engineering and Performance, 2020, 29 : 2125 - 2133
  • [36] Effects of Cr Content on Microstructure and Mechanical Properties of WMoNbTiCr High-Entropy Alloys
    Yan, JianHui
    Li, MaoJian
    Li, Kailing
    Qiu, JingWen
    Guo, Yuanjun
    JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2020, 29 (04) : 2125 - 2133
  • [37] Prediction of A2 to B2 Phase Transition in the High-Entropy Alloy Mo-Nb-Ta-W
    Huhn, William Paul
    Widom, Michael
    JOM, 2013, 65 (12) : 1772 - 1779
  • [38] Effects of Mo content on the microstructure and mechanical properties of TiNbZrMox high-entropy alloys
    Chen, Gengbiao
    Yan, Hongwei
    Wang, Zhe
    Wang, Kaiming
    Yves, Ngabonziza Irumva
    Tong, Yonggang
    JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 930
  • [39] Evolution of Microstructure and Mechanical Properties of As-Cast AlxCrFe2Ni2 High-Entropy Alloys with Al Content
    Chengbin Wei
    Linwei Li
    Yiping Lu
    Xinghao Du
    Tongmin Wang
    Metallurgical and Materials Transactions A, 2021, 52 : 1850 - 1860
  • [40] Prediction of A2 to B2 Phase Transition in the High-Entropy Alloy Mo-Nb-Ta-W
    William Paul Huhn
    Michael Widom
    JOM, 2013, 65 : 1772 - 1779
12345