| Creep deformation in metallic glasses: A global approach with strain as an indicator within transition state theory | |
Zhang, LT1 ; Wang YJ(王云江)2,3; Nabahat, M4; Pineda, E4; Yang, Y5,6; Pelletier, JM7; Crespo, D4; Qiao, JC1,8
| |
| Corresponding Author | Crespo, D.([email protected]) ; Qiao, J. C.([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF PLASTICITY
 |
| 2024-03-01 | |
| Volume | 174Pages:15 |
| ISSN | 0749-6419 |
| Abstract | 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. |
| Keyword | Metallic glass Creep Anelastic deformation Plastic deformation Free volume |
| DOI | 10.1016/j.ijplas.2024.103923 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001209770100001 |
| WOS Keyword | SHEAR TRANSFORMATION ZONES ; BETA-RELAXATION ; PLASTICITY ; BEHAVIOR ; LIQUID ; MECHANISMS ; AL |
| WOS Research Area | Engineering ; Materials Science ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics |
| Funding Project | 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] |
| Funding Organization | 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 |
| Classification | 一类 |
| Ranking | 2 |
| Contributor | Crespo, D. ; Qiao, J. C. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95029 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.Univ Politecn Cataluna, Inst Energy Technol, Dept Phys, Barcelona 08019, Spain; 5.City Univ Hong Kong, Dept Mech Engn, Coll Engn, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China; 6.City Univ Hong Kong, Coll Engn, Dept Mat Sci & Engn, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China; 7.Univ Lyon, INSA Lyon, CNRS, MATEIS,UMR 5510, Bat B Pascal, F-69621 Villeurbanne, France; 8.Northwestern Polytech Univ, State Key Lab Clean & Efficient Turbomachinery Pow, Xian 710072, Peoples R China |
| Recommended Citation 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.Rp_Au:Crespo, D., Qiao, J. C. |
| 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment