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

[11] Mechanical alloying synthesis and spark plasma sintering consolidation of CoCrFeNiAl high-entropy alloy [J].

Ji, Wei ;

Fu, Zhengyi ;

Wang, Weimin ;

Wang, Hao ;

Zhang, Jinyong ;

Wang, Yucheng ;

Zhang, Fan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 589 :61-66

[12] A review on microstructures, mechanical properties and processing of high entropy alloys reinforced composite materials [J].

Kumar, Deepak ;

Seetharam, R. ;

Ponappa, K. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 972

[13] Recent advances in tribology of high entropy alloys: A critical review [J].

Kumar, Deepak .

PROGRESS IN MATERIALS SCIENCE, 2023, 136

[14] Comprehensive review on high entropy alloy-based coating [J].

Kumar, Santosh .

SURFACE & COATINGS TECHNOLOGY, 2024, 477

[15] Elastic moduli and thermal expansion coefficients of medium-entropy subsystems of the CrMnFeCoNi high-entropy alloy [J].

Laplanche, G. ;

Gadaud, P. ;

Baersch, C. ;

Demtroeder, K. ;

Reinhart, C. ;

Schreuer, J. ;

George, E. P. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 746 :244-255

[16] Effects of Mn, Ti and V on the microstructure and properties of AlCrFeCoNiCu high entropy alloy [J].

Li, B. S. ;

Wang, Y. R. ;

Ren, M. X. ;

Yang, C. ;

Fu, H. Z. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 498 (1-2) :482-486

[17] Effect of alloying elements on microstructure and properties of multiprincipal elements high-entropy alloys [J].

Li, C. ;

Li, J. C. ;

Zhao, M. ;

Jiang, Q. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 475 (1-2) :752-757

[18] Fracture resistance of high entropy alloys: A review [J].

Li, Weidong ;

Liaw, Peter K. ;

Gao, Yanfei .

INTERMETALLICS, 2018, 99 :69-83

[19] Elucidating the microstructure and wear behavior for multicomponent alloy clad layers by in situ synthesis [J].

Lin, Y. C. ;

Cho, Y. H. .

SURFACE & COATINGS TECHNOLOGY, 2008, 202 (19) :4666-4672

[20] A review on mechanical alloying and spark plasma sintering of refractory high-entropy alloys: Challenges, microstructures, and mechanical behavior [J].

Martin, P. ;

Aguilar, C. ;

Cabrera, J. M. .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 30 :1900-1928

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