Do "high-entropy alloys" have high entropy?

被引：0

作者：

Kucza, Witold ^{[1
]}

机构：

[1] AGH Univ Krakow, Fac Mat Sci & Ceram, al Mickiewicza 30, PL-30059 Krakow, Poland

来源：

JOURNAL OF MATERIALS RESEARCH | 2025年 / 40卷 / 07期

关键词：

High-entropy alloy; Phase equilibria; Simulations; Thermodynamics;

D O I：

10.1557/s43578-025-01555-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper presents numerical computations on susceptibility to phase segregation of equimolar alloys composed of ten 3d metals. All combinations from ternary to septenary compositions, up to temperature 3000 K, are considered. Both absolute and normalized values of configuration entropy and number of phases are presented. Due to the vast number of analyzed cases, the results are displayed in aggregated forms, as averages calculated for different numbers of components. The differences in absolute values of configuration entropy and number of phases are only apparent as a result of different reference numbers. After normalization, similar dependencies are predicted independently of elements' numbers in the wide temperature range between 650 and 1500 K. Therefore, from a statistical point of view, the perception of "high-entropy alloys" as an exceptional group of materials is unjustified. Additionally, the elements causing phase segregation and those benefitting the formation of single solution are being identified.

引用

页码：1046 / 1055

页数：10

共 46 条

[41] Microstructure and mechanical properties of CoCrFeNiTiAlx high-entropy alloys [J].

Zhang, K. B. ;

Fu, Z. Y. ;

Zhang, J. Y. ;

Wang, W. M. ;

Wang, H. ;

Wang, Y. C. ;

Zhang, Q. J. ;

Shi, J. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 508 (1-2) :214-219

[42] The microstructural evolution and hardness of the equiatomic CoCrCuFeNi high-entropy alloy in the semi-solid state [J].

Zhang, L. J. ;

Fan, J. T. ;

Liu, D. J. ;

Zhang, M. D. ;

Yu, P. F. ;

Jing, Q. ;

Ma, M. Z. ;

Liaw, P. K. ;

Li, G. ;

Liu, R. P. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 745 :75-83

[43] Solid-solution phase formation rules for multi-component alloys [J].

Zhang, Yong ;

Zhou, Yun Jun ;

Lin, Jun Pin ;

Chen, Guo Liang ;

Liaw, Peter K. .

ADVANCED ENGINEERING MATERIALS, 2008, 10 (06) :534-538

[44] Microstructures and properties of high-entropy alloys [J].

Zhang, Yong ;

Zuo, Ting Ting ;

Tang, Zhi ;

Gao, Michael C. ;

Dahmen, Karin A. ;

Liaw, Peter K. ;

Lu, Zhao Ping .

PROGRESS IN MATERIALS SCIENCE, 2014, 61 :1-93

[45] Effect of elemental interaction on microstructure and mechanical properties of FeCoNiCuAl alloys [J].

Zhuang, Y. X. ;

Liu, W. J. ;

Chen, Z. Y. ;

Xue, H. D. ;

He, J. C. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 556 :395-399

[46] Effects of Al and Si addition on the structure and properties of CoFeNi equal atomic ratio alloy [J].

Zuo, T. T. ;

Li, R. B. ;

Ren, X. J. ;

Zhang, Y. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2014, 371 :60-68

← 1 2 3 4 5 →