高熵合金的特殊结构与性能之间的关系

吴亚奇; Peter K. Liaw; 李蕊轩; 张蔚冉; 耿桂红; 闫薛卉; 刘贵群; 张勇

doi:10.1007/s12613-023-2777-4

Volume 31 Issue 6

Jun. 2024

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文章导航 > 矿物冶金与材料学报（英文） > 2024 > 31(6): 1350-1363

Yaqi Wu, Peter K. Liaw, Ruixuan Li, Weiran Zhang, Guihong Geng, Xuehui Yan, Guiqun Liu, and Yong Zhang, Relationship between the unique microstructures and behaviors of high-entropy alloys, Int. J. Miner. Metall. Mater., 31(2024), No. 6, pp. 1350-1363. https://doi.org/10.1007/s12613-023-2777-4

Cite this article as:

Yaqi Wu, Peter K. Liaw, Ruixuan Li, Weiran Zhang, Guihong Geng, Xuehui Yan, Guiqun Liu, and Yong Zhang, Relationship between the unique microstructures and behaviors of high-entropy alloys, Int. J. Miner. Metall. Mater., 31(2024), No. 6, pp. 1350-1363. https://doi.org/10.1007/s12613-023-2777-4

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特约综述

高熵合金的特殊结构与性能之间的关系

1)
北京科技大学新金属材料国家重点实验室, 北京 100083, 中国
2)
Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996, USA
3)
西安稀有金属研究院有限公司，西安 710016，中国
4)
北方民族大学材料科学与工程学院，银川 750030，中国
5)
有研工程技术研究院有限公司，北京 101407，中国

通讯作者:
张勇 E-mail: drzhangy@ustb.edu.cn

文章亮点

(1) 以独特的角度综述了高熵合金近年来的发展。

(2) 提出了关于加工方式与性能之间的关系。

(3) 列举并讨论了高熵合金特殊结构和性能之间的关系。

中文摘要

高熵合金（high entropy alloy，HEA）在2004 年首次以开创性概念提出，引起了众多研究人员的浓厚兴趣。在热力学中，熵用于描述系统的混乱程度。相比之下，合金体系中的元素组成在空间中占据特定的结构位点，这一概念称为结构熵，可以被视为代表无序和随机性。同时，合金的结构可以作为一类可统计的信息，因此有人提出“香农熵”的概念。通常，材料中原子的排列（称为其结构）在决定其性质方面起着关键作用。除了拓展合金组成元素的选择范围外，高熵合金还为各种结构设计提供了更多的可能性。许多例子强调了不同结构特征对合金特殊行为的深远影响。这些特点包括极高的断裂强度、优异的延展性、抗弹能力、出色的耐辐射性和耐腐蚀性。在本文中，我们深入列举讨论了各种独特的材料结构和性能，同时阐明了结构与性能之间的复杂关系。

关键词:

Invited Review

Relationship between the unique microstructures and behaviors of high-entropy alloys

+ Author Affiliations

1)
State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
2)
Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996, USA
3)
Xi’an Rare Metal Materials Institute Co. Ltd., Xi’an 710016, China
4)
School of Materials Science and Engineering, North Minzu University, Yinchuan 750030, China
5)
GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China

Yong Zhang is an editorial board member for this journal and was not involved in the editorial review or the decision to publish this article. No potential conflict of interest was reported by the authors.

Corresponding author:
Yong Zhang E-mail: drzhangy@ustb.edu.cn
Received: 28 August 2023; Revised: 1 November 2023; Accepted: 2 November 2023; Available online: 3 November 2023

Abstract

Abstract

High-entropy alloys (HEAs), which were introduced as a pioneering concept in 2004, have captured the keen interest of numerous researchers. Entropy, in this context, can be perceived as representing disorder and randomness. By contrast, elemental compositions within alloy systems occupy specific structural sites in space, a concept referred to as structure. In accordance with Shannon entropy, structure is analogous to information. Generally, the arrangement of atoms within a material, termed its structure, plays a pivotal role in dictating its properties. In addition to expanding the array of options for alloy composites, HEAs afford ample opportunities for diverse structural designs. The profound influence of distinct structural features on the exceptional behaviors of alloys is underscored by numerous examples. These features include remarkably high fracture strength with excellent ductility, antiballistic capability, exceptional radiation resistance, and corrosion resistance. In this paper, we delve into various unique material structures and properties while elucidating the intricate relationship between structure and performance.
- high-entropy alloys;
- unique microstructure;
- special properties;
- alloy design

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