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Aging and rejuvenation during high-temperature deformation in a metallic glass

文献类型：期刊论文

作者Zhang, Langting6; Wang YJ(王云江)4,5; Yang, Yong2,3; Qiao, Jichao1,6
刊名SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期2022-10-01
卷号65期号:10页码:8
ISSN号1674-7348
关键词metallic glass aging rejuvenation homogenous flow free volume
DOI10.1007/s11433-022-1953-x
通讯作者Qiao, Jichao(qjczy@nwpu.edu.cn)
英文摘要High-temperature deformation has been demonstrated as an effective measure to rejuvenate and optimize the mechanical properties of metallic glasses (MGs). Clarifying the competition between aging and rejuvenation during high-temperature deformation is helpful in rejuvenating MGs accurately. Signatures of aging and rejuvenation in a La30Ce30Ni10Al20Co10 MG were investigated via high-temperature deformation and mechanical relaxation. The coupling of thermal history, aging, and mechanical disordering determines the transient deformation and the structural state of MGs. The stress overshoot and anelastic deformation induce structural rejuvenation, increasing the concentration of defects and erasing thermal history. Therefore, the eventually steady-state condition is dependent on ambient temperature and strain rate instead of the initial structure. Furthermore, the one-to-one relationship between defect concentration and strain rate clarifies the structural nature of rejuvenation in amorphous materials. Such a relationship also contributes toward a comprehensive understanding of the structural rejuvenation behavior in amorphous materials.
分类号二类/Q1
WOS关键词STRUCTURAL RELAXATION ; TRANSITION ; FLOW
资助项目National Natural Science Foundation of China (NSFC)[51971178] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province[2021JC-12] ; Natural Science Foundation of Chongqing[cstc2020jcyj-jqX0001] ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University[CX2021015] ; NSFC[12072344] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Research Grant Council (RGC) ; Hong Kong government through the General Research Fund (GRF)[CityU11200719] ; Hong Kong government through the General Research Fund (GRF)[CityU11213118]
WOS研究方向Physics
语种英语
WOS记录号WOS:000850063100002
资助机构National Natural Science Foundation of China (NSFC) ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province ; Natural Science Foundation of Chongqing ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University ; NSFC ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Research Grant Council (RGC) ; Hong Kong government through the General Research Fund (GRF)
其他责任者Qiao, Jichao
源URL[http://dspace.imech.ac.cn/handle/311007/89982]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.NPU Chongqing, Innovat Ctr, Chongqing 401135, Peoples R China
2.City Univ Hong Kong, Dept Mat Sci & Engn, Coll Engn, Hong Kong 999077, Peoples R China;
3.City Univ Hong Kong, Dept Mech Engn, Coll Engn, Hong Kong 999077, Peoples R China;
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
6.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China;
推荐引用方式
GB/T 7714		 Zhang, Langting,Wang YJ,Yang, Yong,et al. Aging and rejuvenation during high-temperature deformation in a metallic glass[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2022,65(10):8.
APA Zhang, Langting,王云江,Yang, Yong,&Qiao, Jichao.(2022).Aging and rejuvenation during high-temperature deformation in a metallic glass.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,65(10),8.
MLA Zhang, Langting,et al."Aging and rejuvenation during high-temperature deformation in a metallic glass".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 65.10(2022):8.

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来源：力学研究所

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