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Creep deformation in metallic glasses: A global approach with strain as an indicator within transition state theory

文献类型：期刊论文

作者Zhang, LT8; Wang YJ(王云江)6,7; Nabahat, M5; Pineda, E5; Yang, Y3,4; Pelletier, JM2; Crespo, D5; Qiao, JC1,8
刊名INTERNATIONAL JOURNAL OF PLASTICITY
出版日期2024-03-01
卷号174页码:15
关键词Metallic glass Creep Anelastic deformation Plastic deformation Free volume
ISSN号0749-6419
DOI10.1016/j.ijplas.2024.103923
通讯作者Crespo, D.(daniel.crespo@upc.edu) ; Qiao, J. C.(qjczy@nwpu.edu.cn)
英文摘要Within the framework of transition state theory, the isothermal creep behavior of metallic glasses is elucidated through a unique global approach, where the topological state is exclusively linked to measured strain. Our methodology allows the computation of the average activation volume and activation energy of deformation units as a function of strain. Experimental data from four representative metallic glasses (La 30 Ce 30 Ni 10 Al 10 Co 20 , La 65 Ni 15 Al 25 , La 56.16 Ce 14.04 Ni 19.8 Al 10 , and Cu 46 Zr 46 Al 8 ) reveal two distinct characteristics. Below the glass transition temperature, the mechanical response is primarily influenced by secondary relaxation processes and excess configuration entropy, with activation volume increasing with strain. Upon reaching the glass transition temperature, the activation volume becomes notably larger and strain -independent. Additionally, the activation energy exhibits an increase with strain, and deformation units of varying sizes are progressively activated, from smaller to larger units. The decoupling and competition among relaxation events are correlated with the increase in the activation volume of deformation units. These findings provide valuable insights into the dynamic behavior of metallic glasses and their mechanical response across different states.
分类号一类
WOS关键词SHEAR TRANSFORMATION ZONES ; BETA-RELAXATION ; PLASTICITY ; BEHAVIOR ; LIQUID ; MECHANISMS ; AL
资助项目NSFC[52271153] ; NSFC[PID2020-112975GB-I00] ; NSFC[12072344] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province[2021JC-12] ; 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] ; MCIN/AEI predoctoral FPI[PRE -C-2018-0052] ; MCIN/Agencia Estatal de Investigacion (AEI) ; Generalitat de Catalunya AGAUR[51971178] ; [2017-SGR-42]
WOS研究方向Engineering ; Materials Science ; Mechanics
语种英语
WOS记录号WOS:001209770100001
资助机构NSFC ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Research Grant Council (RGC) ; Hong Kong government through the General Research Fund (GRF) ; MCIN/AEI predoctoral FPI ; MCIN/Agencia Estatal de Investigacion (AEI) ; Generalitat de Catalunya AGAUR
其他责任者Crespo, D. ; Qiao, J. C.
源URL[http://dspace.imech.ac.cn/handle/311007/95028]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Northwestern Polytech Univ, State Key Lab Clean & Efficient Turbomachinery Pow, Xian 710072, Peoples R China
2.Univ Lyon, INSA Lyon, CNRS, MATEIS,UMR 5510, Bat B Pascal, F-69621 Villeurbanne, France;
3.City Univ Hong Kong, Coll Engn, Dept Mat Sci & Engn, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China;
4.City Univ Hong Kong, Dept Mech Engn, Coll Engn, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China;
5.Univ Politecn Cataluna, Inst Energy Technol, Dept Phys, Barcelona 08019, Spain;
6.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
7.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
8.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China;
推荐引用方式
GB/T 7714		 Zhang, LT,Wang YJ,Nabahat, M,et al. Creep deformation in metallic glasses: A global approach with strain as an indicator within transition state theory[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2024,174:15.
APA Zhang, LT.,王云江.,Nabahat, M.,Pineda, E.,Yang, Y.,...&Qiao, JC.(2024).Creep deformation in metallic glasses: A global approach with strain as an indicator within transition state theory.INTERNATIONAL JOURNAL OF PLASTICITY,174,15.
MLA Zhang, LT,et al."Creep deformation in metallic glasses: A global approach with strain as an indicator within transition state theory".INTERNATIONAL JOURNAL OF PLASTICITY 174(2024):15.

入库方式： OAI收割

来源：力学研究所

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