Interfacial Kagome lattice transitions induced by segregation of solute atoms

doi:10.1016/j.actamat.2024.119756

IMR OpenIR

	Interfacial Kagome lattice transitions induced by segregation of solute atoms
	Yang, Peijun 1; Xie, Hongbo 1,2,3; Li, Shanshan 4; Zhu, Jinbo 5; Ma, Xiande 1; Jin, Jianfeng 1; Pan, Hucheng 1; Ren, Yuping 1; Zong, Yaping 1; Jia, Weitao 6; Qin, Gaowu 1
通讯作者	Xie, Hongbo(xiehongbo@dlut.edu.cn) ; Jin, Jianfeng(jinjf@atm.neu.edu.cn)
	2024-04-01
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	267 页码:11
摘要	Interfacial structural transformations arising from solute segregation play a crucial role in the performance of materials. However, these micro -transitions are often difficult to reveal due to their buried nature. Here, in a typical Mg -rare-earth model system, we present the discovery of interfacial Kagome lattice transitions triggered by segregation of solutes coupled with bi-crystalline lattice interactions, in three types of partially coherent tilt grain boundaries (GBs), using atomic -resolution scanning transmission electron microscopy observations plus theoretical calculations. The results demonstrate that the minimization of GB elastic strain is responsible for the selective segregation of solutes at interfacial specific sites, resulting in a confined phase transition of the embedded triangular -quadrilateral (1011)Mg lattice to a topological hexagonal -triangular Kagome lattice via atomic shuffling. Furthermore, the pressure -temperature conditions that trigger such interfacial Kagome lattice transitions have also been determined. These findings not only enrich the transition pathways formed by the Kagome lattice but also provide a bottom -up approach for investigating interfacial structural transformations induced by solute/impurity segregation in polycrystalline materials.
关键词	Grain boundary Interfacial transformation Kagome lattice Segregation Magnesium alloy
资助者	National Key Research and Develop- ment Program of China ; National Natural Sci- ence Foundation of China ; Fundamental Research Funds for the Central Universities
DOI	10.1016/j.actamat.2024.119756
收录类别	SCI
语种	英语
资助项目	National Key Research and Develop- ment Program of China[2021YFB3701002] ; National Natural Sci- ence Foundation of China[52101129] ; Fundamental Research Funds for the Central Universities[N2202013]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001180700100001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184714
专题	中国科学院金属研究所
通讯作者	Xie, Hongbo; Jin, Jianfeng
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 2.Dalian Univ Technol, Instrumental Anal Ctr, Dalian 116024, Peoples R China 3.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China 4.Shenyang Univ Chem Technol, Sch Mech & Power Engn, Shenyang 110142, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 6.Taiyuan Univ Sci & Technol, Coll Mech Engn, Taiyuan 030024, Peoples R China
推荐引用方式 GB/T 7714	Yang, Peijun,Xie, Hongbo,Li, Shanshan,et al. Interfacial Kagome lattice transitions induced by segregation of solute atoms[J]. ACTA MATERIALIA,2024,267:11.
APA	Yang, Peijun.,Xie, Hongbo.,Li, Shanshan.,Zhu, Jinbo.,Ma, Xiande.,...&Qin, Gaowu.(2024).Interfacial Kagome lattice transitions induced by segregation of solute atoms.ACTA MATERIALIA,267,11.
MLA	Yang, Peijun,et al."Interfacial Kagome lattice transitions induced by segregation of solute atoms".ACTA MATERIALIA 267(2024):11.