Disorder-order transition in multiprincipal element alloy: A free energy perspective

doi:10.1103/PhysRevMaterials.7.033606

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	Disorder-order transition in multiprincipal element alloy: A free energy perspective
	Wang XS(王晓实); Wang YJ(王云江)
刊名	PHYSICAL REVIEW MATERIALS ; 3
	2023-03
卷号	7 页码:33606
ISSN号	2475-9953
DOI	10.1103/PhysRevMaterials.7.033606
英文摘要	Although the concept of high entropy has flourished in the development of engineeringly important multi principal elemental crystalline materials, the role of entropy is controversial in driving possible disorder-order transition. Here we provide a thermodynamic perspective on this transition based on absolute free energy calculations of a list of equilibrated CoCrNi configurations extracted from the annealing history. A set of new physical quantities associated with the degree of anharmonicity, chemical short-range order, and Shannon-entropy informed disorder temperatures are proposed to signify the disorder-order transition. The interrelationships between these thermodynamic quantities consistently suggest a disorder-order transition that is supported by experimental observation. The analysis further recognizes the critical role of the anharmonic effect in driving the random solid solution to a chemically short-range ordered phase. The free energy insights help us to understand the formation mechanism of locally ordered structures emerged from the solid solution of ideal mixing.
分类号	二类
WOS研究方向	WOS:000966281200002
语种	英语
资助机构	National Nat-ural Science Foundation of China [12072344] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
其他责任者	Wang, YJ
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92284]
专题	力学研究所_非线性力学国家重点实验室
作者单位	(Wang Yun-Jiang) Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech Beijing 100190 Peoples R China, Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China
推荐引用方式 GB/T 7714	Wang XS,Wang YJ. Disorder-order transition in multiprincipal element alloy: A free energy perspective[J]. PHYSICAL REVIEW MATERIALS, 3,2023,7:33606.
APA	王晓实,&王云江.(2023).Disorder-order transition in multiprincipal element alloy: A free energy perspective.PHYSICAL REVIEW MATERIALS,7,33606.
MLA	王晓实,et al."Disorder-order transition in multiprincipal element alloy: A free energy perspective".PHYSICAL REVIEW MATERIALS 7(2023):33606.