Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms

doi:10.1021/acs.nanolett.1c03448

IMR OpenIR

	Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms
	Xie, Hongbo 1; Pan, Hucheng 1; Bai, Junyuan 1; Xie, Dongsheng 1; Yang, Peijun 1; Li, Shanshan 1; Jin, Jianfeng 2; Huang, Qiuyan 1,3; Ren, Yuping ; Qin, Gaowu 2
通讯作者	Pan, Hucheng(panhc@atm.neu.edu.cn)
	2021-11-24
发表期刊	NANO LETTERS
ISSN	1530-6984
卷号	21 期号:22 页码:9642-9650
摘要	Twinning is a common deformation mechanism in metals, and twin boundary (TB) segregation of impurities/solutes plays an important role in the performances of alloys such as thermostability, mobility, and even strengthening. The occurrence of such segregation phenomena is generally believed as a one-layer coverage of solutes alternately distributed at extension/compression sites, in an orderly, continuous manner. However, in the Mnfree and Mn-containing Mg-Nd model systems, we reported unexpected three- and five-layered discontinuous segregation patterns of the coherent {10 (1) over bar1} TBs, and not all the extension sites occupied by solutes larger in size than Mg, and even some larger sized solutes taking the compression sites. Nd/Mn solutes selectively segregate at substitutional sites and thus to generate two new types of ordered two-dimensional TB superstructures or complexions. These findings refresh the understanding of solute segregation in the perfect coherent TBs and provide a meaningful theoretical guidance for designing materials via targeted TB segregation.
关键词	Interface Twin boundary Segregation Superstructure Dislocation Magnesium alloy
资助者	National Natural Science Foundation of China ; Project of Promoting Talents in Liaoning Province ; Fundamental Research Funds for the Central Universities
DOI	10.1021/acs.nanolett.1c03448
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52101129] ; National Natural Science Foundation of China[51971053] ; National Natural Science Foundation of China[51701211] ; Project of Promoting Talents in Liaoning Province[XLYC1808038] ; Fundamental Research Funds for the Central Universities[N2002018]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000756421600036
出版者	AMER CHEMICAL SOC
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173481
专题	中国科学院金属研究所
通讯作者	Pan, Hucheng
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xie, Hongbo,Pan, Hucheng,Bai, Junyuan,et al. Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms[J]. NANO LETTERS,2021,21(22):9642-9650.
APA	Xie, Hongbo.,Pan, Hucheng.,Bai, Junyuan.,Xie, Dongsheng.,Yang, Peijun.,...&Qin, Gaowu.(2021).Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms.NANO LETTERS,21(22),9642-9650.
MLA	Xie, Hongbo,et al."Twin Boundary Superstructures Assembled by Periodic Segregation of Solute Atoms".NANO LETTERS 21.22(2021):9642-9650.