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

文献类型：期刊论文

作者Zhu, Yuhui1,2,3; Zhou, Yongkang1,2,3; Wang, Aimin1,3; Li, Hong1,3; Fu, Huameng1,3; Zhang, Hongwei1,3; Zhang, Haifeng1,3; Zhu, Zhengwang1,3
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2022-08-11
卷号850页码:10
ISSN号0921-5093
关键词Bulk metallic glasses Deep cryogenic treatment Structural heterogeneity Icosahedral short-range ordering Rejuvenation
DOI10.1016/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
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.

入库方式： OAI收割

来源：金属研究所

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