Chemical medium-range order in a medium-entropy alloy

doi:10.1038/s41467-022-28687-w

IMECH-IR > 非线性力学国家重点实验室

	Chemical medium-range order in a medium-entropy alloy
	Wang J(王晶)1 ; Jiang P(姜萍)1 ; Yuan FP(袁福平)1,2 ; Wu XL(武晓雷)1,2
通讯作者	Wu, Xiaolei(xlwu@imech.ac.cn)
发表期刊	NATURE COMMUNICATIONS
	2022-02-23
卷号	13 期号:1 页码:6
摘要	High-/medium-entropy alloys (H/MEA) have the inherent local chemical order. Yet, as a structural link between the incipient short-range order and mature long-range counterpart, the chemical medium-range order (CMRO) is conjectural and remains open questions as to if, and what kind of, CMRO would be produced and if CMRO is mechanically stable during plastic deformation. Here, we show compelling evidences for CMRO in an Al9.5CrCoNi MEA. Specifically, the electron diffraction under both [112] and [013] zone axis show the definite spots for CMRO of lattice periodicity. CMRO entities are seen directly of medium-ranged in sizes by using dark-field imaging, along with the tendency towards like-pair avoidance and unlike-pair preference based on atomic-resolution EDS mapping. These findings substantiate CMRO with a realistic structural picture in view of crystal periodicity and chemical species occupation, shedding light on understanding the microstructural link at an extended length scale beyond the short-range order.
DOI	10.1038/s41467-022-28687-w
收录类别	SCI
语种	英语
WOS记录号	WOS:000760426000004
关键词[WOS]	AL ADDITION
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
资助项目	National Key R&D Program of China, MOST[2019YFA0209900] ; National Key R&D Program of China, MOST[2017YFA0204402] ; Natural Science Foundation of China[11988102] ; Natural Science Foundation of China[11972350] ; Natural Science Foundation of China[11790293] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503]
项目资助者	National Key R&D Program of China, MOST ; Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
论文分区	一类
力学所作者排名	1
RpAuthor	Wu, Xiaolei
引用统计	被引频次：44[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/88740
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang J,Jiang P,Yuan FP,et al. Chemical medium-range order in a medium-entropy alloy[J]. NATURE COMMUNICATIONS,2022,13,1,:6.
APA	王晶,姜萍,袁福平,&武晓雷.(2022).Chemical medium-range order in a medium-entropy alloy.NATURE COMMUNICATIONS,13(1),6.
MLA	王晶,et al."Chemical medium-range order in a medium-entropy alloy".NATURE COMMUNICATIONS 13.1(2022):6.

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