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Reversible anelastic deformation mediated by β relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass

文献类型：期刊论文

作者Hao, Qi6; Pineda, Eloi5; Wang YJ(王云江)3,4; Yang, Yong1,2; Qiao, JiChao6
刊名PHYSICAL REVIEW B
出版日期2023-07-11
卷号108期号:2页码:8
ISSN号2469-9950
DOI10.1103/PhysRevB.108.024101
通讯作者Qiao, Ji-Chao(qjczy@nwpu.edu.cn)
英文摘要The stress relaxation dynamics of a La60Ni15Al25 metallic glass were studied in ribbon and bulk samples. In both tensile and single cantilever testing modes, it is observed that the stress decay of deep glass is mediated by the beta relaxation, which contributes about 5% to the total stress. The characteristic time of stress relaxation near the glass transition coincides with that of the alpha relaxation, indicating that the two-step stress decay may correspond directly to the two dynamic relaxations. A possible atomic mechanism involving both relaxation and deformation is proposed based on the evolution of shear transition zone, which enables reconstruction of the two-step deformation theoretically. The present experimental and theoretical protocol further provides a strategy to detect the beta relaxation associated phenomena at room temperature and even lower, circumventing interference from physical aging or the alpha relaxation. These findings clarify the elusive roles of relaxation modes in the nonelastic deformation of amorphous matters and reveal the interrelationships between them.
分类号二类
WOS关键词PLASTIC-DEFORMATION ; LIQUIDS ; DYNAMICS
资助项目NSFC[51971178] ; NSFC[52271153] ; NSFC[2021JC-12] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province[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] ; MCIN/AEI[PID2020-112975GB-I00 de] ; Generalitat de Catalunya, AGAUR[2021-SGR-00343] ; Innovation Foundation[CX2023054]
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:001063269000002
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 ; Generalitat de Catalunya, AGAUR ; Innovation Foundation
其他责任者Qiao, Ji-Chao
源URL[http://dspace.imech.ac.cn/handle/311007/92993]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.City Univ Hong Kong, Coll Engn, Dept Mat Sci & Engn, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China
2.City Univ Hong Kong, Coll Engn, Dept Mech Engn, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China;
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
5.Univ Politecn Catalunya BarcelonaTech, Inst Energy Technol, Dept Phys, Barcelona 08019, Spain;
6.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China;
推荐引用方式
GB/T 7714		 Hao, Qi,Pineda, Eloi,Wang YJ,et al. Reversible anelastic deformation mediated by β relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass[J]. PHYSICAL REVIEW B,2023,108(2):8.
APA Hao, Qi,Pineda, Eloi,王云江,Yang, Yong,&Qiao, JiChao.(2023).Reversible anelastic deformation mediated by β relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass.PHYSICAL REVIEW B,108(2),8.
MLA Hao, Qi,et al."Reversible anelastic deformation mediated by β relaxation and resulting two-step deformation in a La60Ni15Al25 metallic glass".PHYSICAL REVIEW B 108.2(2023):8.

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来源：力学研究所

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