The fcc solid solution stability in the Co-Cr-Fe-Mn-Ni multi-component system

被引：183
作者：
Bracq, Guillaume [1 ]
Laurent-Brocq, Mathilde [1 ]
Perriere, Loic [1 ]
Pires, Remy [1 ]
Joubert, Jean-Marc [1 ]
Guillot, Ivan [1 ]
机构：
[1] Univ Paris Est, CNRS, ICMPE UMR 7182, UPEC, F-94320 Thiais, France
来源：
ACTA MATERIALIA | 2017年 / 128卷
关键词：
Multi-component alloys; High entropy alloys; Solid solution; Calphad; Thermodynamic stability; HIGH-ENTROPY ALLOYS; PHASE-STABILITY; SINGLE-PHASE; DESIGN;
D O I：
10.1016/j.actamat.2017.02.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The phase stability of the fcc solid solution in the Co-Cr-Fe-Mn-Ni system was theoretically and experimentally investigated. Using the Calphad approach and a new database (TCHEA1) devoted to high entropy alloys (HEA), the stable phases of 10 626 compositions could be calculated, depending on the temperature. 11 alloys were also processed and characterized. The comparison between calculations and experimental results indicates that the fcc solid solution is accurately described by the TCHEA1 database but, the a phase is more stable than the calculation predictions. It was shown that the fcc phase is stable over a wide range of compositions, which was completely described. Now it is possible to choose a priori a composition which will form a solid solution within the Co-Cr-Fe-Mn-Ni system. Finally, it was proven that Cr and Mn destabilize the fcc solid solution, unlike Ni and Co. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：327 / 336
页数：10
相关论文
共 27 条
  • [1] Microstructural development in equiatomic multicomponent alloys
    Cantor, B
    Chang, ITH
    Knight, P
    Vincent, AJB
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 375 : 213 - 218
  • [2] Carvajal J.R., 1990, ABSTR SATELL MEET PO, P127
  • [3] Design of a twinning-induced plasticity high entropy alloy
    Deng, Y.
    Tasan, C. C.
    Pradeep, K. G.
    Springer, H.
    Kostka, A.
    Raabe, D.
    [J]. ACTA MATERIALIA, 2015, 94 : 124 - 133
  • [4] Phase selection rules for cast high entropy alloys: an overview
    Guo, S.
    [J]. MATERIALS SCIENCE AND TECHNOLOGY, 2015, 31 (10) : 1223 - 1230
  • [5] Effect of valence electron concentration on stability of fcc or bcc phase in high entropy alloys
    Guo, Sheng
    Ng, Chun
    Lu, Jian
    Liu, C. T.
    [J]. JOURNAL OF APPLIED PHYSICS, 2011, 109 (10)
  • [6] From high entropy alloys to diluted multi-component alloys: Range of existence of a solid-solution
    Laurent-Brocq, Mathilde
    Perriere, Loic
    Pires, Remy
    Champion, Yannick
    [J]. MATERIALS & DESIGN, 2016, 103 : 84 - 89
  • [7] Lukas H. L., 2007, COMPUTATIONAL THERMO, V131
  • [8] Phase stability of non-equiatomic CoCrFeMnNi high entropy alloys
    Ma, Duancheng
    Yao, Mengji
    Pradeep, K. G.
    Tasan, Cemal C.
    Springer, Hauke
    Raabe, Dierk
    [J]. ACTA MATERIALIA, 2015, 98 : 288 - 296
  • [9] Nishiyama Zenji, 2012, Martensitic Transformation
  • [10] Nishizawa T., 1984, Bull. Alloy Phase Diagrams, V5, P250, DOI [10.1007/BF02868548, DOI 10.1007/BF02868548]
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