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Mechanical memory and relaxation decoupling of metallic glasses in homogenous flow

文献类型：期刊论文

作者Zhang, L. T.7; Wang, Y. J.5,6; Yang, Y.3,4; Wada, T.2; Kato, H.2; Qiao, J. C.1,7; Yang, Y; Yang, Y; Yang, Y; Wang YJ(王云江)
刊名INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
出版日期2024-11-01
卷号281页码:12
关键词Metallic glass Structural heterogeneity Homogenous flow Creep Stress relaxation Mechanical memory
ISSN号0020-7403
DOI10.1016/j.ijmecsci.2024.109661
通讯作者Qiao, J. C.(qjczy@nwpu.edu.cn)
英文摘要Due to the structural information submerged into the meta-stable disordered long-range structure, quantitative prediction of the time-dependent deformation of metallic glasses under mechanical stimuli is a challenging task. Specifically, the present understanding of relaxation behavior, particularly in relation to dynamic heterogeneity and the memory effect in metallic glasses during thermo-mechanical treatment, is yet to be totally understood. Here we study the correlation between the relaxation decoupling and mechanical memory effect in metallic glasses, manifested by non-monotonic variation of activation energy and dynamic heterogeneity during creep and stress relaxation. The strain evolution and energetic state show a memory effect in an aging (recovery)-and creep procedure. The relaxation decoupling and mechanical memory effect originate from the competition between the formation of fast defects by stress and the transition towards slow defects and their annihilation. The strain evolution is dependent on total loading time and total recovery/aging time rather than their orders. Our results shed light on the deformation and history-dependent behaviors of metallic glasses.
WOS关键词SHEAR BANDS ; FREE-VOLUME ; DEFORMATION ; BEHAVIOR ; DEFECTS
资助项目NSFC[12072344] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province[2021JC-12] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province[FY2023 GIMRT] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province[202308-CRKKE-0508] ; Research Grant Council (RGC) ; Hong Kong government through the General Research Fund (GRF)[CityU11200719] ; Hong Kong government through the General Research Fund (GRF)[CityU11213118] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS研究方向Engineering ; Mechanics
语种英语
WOS记录号WOS:001311765600001
资助机构NSFC ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province ; Research Grant Council (RGC) ; Hong Kong government through the General Research Fund (GRF) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://dspace.imech.ac.cn/handle/311007/96599]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Qiao, J. C.
作者单位1.Northwestern Polytech Univ, State Key Lab Clean & Efficient Turbomachinery Pow, Xian 710072, Peoples R China
2.Tohoku Univ, Inst Mat Res, Sendai 9808577, Japan
3.City Univ Hong Kong, Coll Engn, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China
4.City Univ Hong Kong, Coll Engn, Dept Mech Engn, Hong Kong 999077, Peoples R China
5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
7.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, L. T.,Wang, Y. J.,Yang, Y.,et al. Mechanical memory and relaxation decoupling of metallic glasses in homogenous flow[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2024,281:12.
APA Zhang, L. T..,Wang, Y. J..,Yang, Y..,Wada, T..,Kato, H..,...&Zhang, LT.(2024).Mechanical memory and relaxation decoupling of metallic glasses in homogenous flow.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,281,12.
MLA Zhang, L. T.,et al."Mechanical memory and relaxation decoupling of metallic glasses in homogenous flow".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 281(2024):12.

入库方式： OAI收割

来源：力学研究所

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