Unconventional Deformation Behaviours of Nanoscaled High-Entropy Alloys

doi:10.3390/e20100778

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Unconventional Deformation Behaviours of Nanoscaled High-Entropy Alloys
	Bu YQ ; Peng SY(彭神佑); Wu SW ; Wei YJ(魏宇杰); Wang G; Liu JB ; Wang HT(王洪涛)
刊名	ENTROPY
	2018-10-01
卷号	20 期号:10 页码:Ar-778
关键词	nanoscaled high-entropy alloys nanodisturbances phase transformations atomic-scale unstable
ISSN号	1099-4300
DOI	10.3390/e20100778
英文摘要	The bulk high-entropy alloys (HEAs) exhibit similar deformation behaviours as traditional metals. These bulk behaviours are likely an averaging of the behaviours exhibited at the nanoscale. Herein, in situ atomic-scale observation of deformation behaviours in nanoscaled CoCrCuFeNi face-centred cubic (FCC) HEA was performed. The deformation behaviours of this nanoscaled FCC HEA (i.e., nanodisturbances and phase transformations) were distinct from those of nanoscaled traditional FCC metals and corresponding bulk HEA. First-principles calculations revealed an obvious fluctuation of the stacking fault energy and stability difference at the atomic scale in the HEA. The stability difference was highlighted only in the nanoscaled HEA and induced unconventional deformation behaviours. Our work suggests that the nanoscaled HEA may provide more chances to discover the long-expected essential distinction between the HEAs and traditional metals.
分类号	二类
URL标识	查看原文
WOS关键词	IN-SITU TEM ; MECHANICAL-PROPERTIES ; EVOLUTION ; STRENGTH ; INSIGHTS
WOS研究方向	Physics, Multidisciplinary
语种	英语
WOS记录号	WOS:000448545700059
资助机构	National Natural Science Foundation of China [11572281, 11725210, 11672355] ; Fundamental Research Funds for the Central Universities [2018XZZX001-05] ; Zhejiang Provincial Science & Technology Program of China [2017C31076]
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/78152]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 3.Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China 4.Zhejiang Univ, Inst Appl Mech, Hangzhou 310027, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Bu YQ,Peng SY,Wu SW,et al. Unconventional Deformation Behaviours of Nanoscaled High-Entropy Alloys[J]. ENTROPY,2018,20(10):Ar-778.
APA	Bu YQ.,彭神佑.,Wu SW.,魏宇杰.,Wang G.,...&王洪涛.(2018).Unconventional Deformation Behaviours of Nanoscaled High-Entropy Alloys.ENTROPY,20(10),Ar-778.
MLA	Bu YQ,et al."Unconventional Deformation Behaviours of Nanoscaled High-Entropy Alloys".ENTROPY 20.10(2018):Ar-778.