Atomic-scale icosahedral short-range ordering in a rejuvenated Zr-based bulk metallic glass upon deep cryogenic treatment

doi:10.1016/j.msea.2022.143565

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	Atomic-scale icosahedral short-range ordering in a rejuvenated Zr-based bulk metallic glass upon deep cryogenic treatment
	Zhu, Yuhui 1,2,3; Zhou, Yongkang 1,2,3; Wang, Aimin 1,3; Li, Hong 1,3; Fu, Huameng 1,3; Zhang, Hongwei 1,3; Zhang, Haifeng 1,3; Zhu, Zhengwang 1,3
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2022-08-11
卷号	850 页码:10
关键词	Bulk metallic glasses Deep cryogenic treatment Structural heterogeneity Icosahedral short-range ordering Rejuvenation
ISSN号	0921-5093
DOI	10.1016/j.msea.2022.143565
通讯作者	Zhu, Zhengwang(zwzhu@imr.ac.cn)
英文摘要	Tailoring the formation and distribution of loose-packing regions and dense-packing regions in the bulk metallic glasses (BMGs) has long been considered to facilitate macroscopic mechanical properties and break strength -ductility trade-off. Herein, studies on structural heterogeneity caused by the deep cryogenic treatment (DCT) were systematically carried out to not only probe the atomic-scale structure-property relationships but also further understand the deformation mechanisms involving improved plasticity without sacrificing strength on the basis of these experimental results in rejuvenated Zr-based BMGs. The internal stress due to the cooling contraction will activate the atomic motion in weakly bonded regions and meanwhile form perfect icosahedral short-range ordering (ISRO) via containing mobile atoms to become denser geometric configurations. The multiplication and propagation of shear bands are closely associated with their structural features originating from the optimization of perfect icosahedral ordered structures in the rejuvenated glassy matrix. It is believed that these findings are helpful to shed light on the correlations between atomic-scale structural heterogeneity and macroscopic mechanical properties and further provide new possibilities for the development of promising BMGs with strength-ductility synergy.
资助项目	National Key Research and Development Program[2018YFB0703402] ; National Natural Science Foundation of China[52074257] ; National Natural Science Foundation of China[51790484] ; Chinese Academy of Sciences[ZDBS-LY-JSC023]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000830447800001
资助机构	National Key Research and Development Program ; National Natural Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174723]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhu, Zhengwang
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Yuhui,Zhou, Yongkang,Wang, Aimin,et al. Atomic-scale icosahedral short-range ordering in a rejuvenated Zr-based bulk metallic glass upon deep cryogenic treatment[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,850:10.
APA	Zhu, Yuhui.,Zhou, Yongkang.,Wang, Aimin.,Li, Hong.,Fu, Huameng.,...&Zhu, Zhengwang.(2022).Atomic-scale icosahedral short-range ordering in a rejuvenated Zr-based bulk metallic glass upon deep cryogenic treatment.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,850,10.
MLA	Zhu, Yuhui,et al."Atomic-scale icosahedral short-range ordering in a rejuvenated Zr-based bulk metallic glass upon deep cryogenic treatment".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 850(2022):10.