Atomic-scale Nb heterogeneity induced icosahedral short-range ordering in metallic glasses

Yuhui Zhu ¹Weizhen Wang ²Yuanyuan Song ³Shiming Zhang ⁴Hong Li ⁵Aimin Wang ⁵Haifeng Zhang ⁵Zhengwang Zhu⁵

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作者信息

1. Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;School of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China;CAS Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
2. Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
3. CAS Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
4. Qingdao Yunlu Advanced Materials Technology Co.,Ltd.,Qingdao 266232,China
5. Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;CAS Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
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Abstract

The intrinsic origins and formation of atomic-scale structure in multicomponent alloys remain largely unknown owing to limited simulations and inaccessible experiments.Herein,we report the formation of three-dimensional periodicity from a disordered atomic-scale structure to an imperfect/perfect ordered cluster and finally to long-range translational and rotational symmetry coupled with Nb heterogeneity.Significant atomic-scale structural clustering and atomic arrangements involving solvent or solute atoms simultaneously occurred during isothermal annealing.A close relationship between atomic-scale struc-tural evolution and composition variation has important implications in depicting the chemical and topo-logical packing during the early crystallization stage in metallic glasses.This work can provide a compre-hensive understanding of how short-range orders evolve into long-range periodicity and will further shed light on the origins and nature of metallic glasses.

Key words

Metallic glasses/Isothermal annealing/Atomic-scale/Structural ordering/Nb heterogeneity

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基金项目

authors acknowledge the financial support from the Na-tional Natural Science Foundation of China(52074257)

authors acknowledge the financial support from the Na-tional Natural Science Foundation of China(51790484)

Chinese Academy of Sciences(Grant ZDBS-LY-JSC023)

Liao Ning Revitalization Talents Program(XLYC1802078)

Liao Ning Revitalization Talents Program(XLYC1807062)

and the fund of Qingdao(Grant 19-9-2-1-wz)

出版年

2022

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量42

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