IMECH-IR  > 非线性力学国家重点实验室
Ultrafast extreme rejuvenation of metallic glasses by shock compression
Ding G; Li C(李琛); Zaccone A; Wang WH; Lei HC; Jiang F; Ling Z(凌中); Jiang MQ(蒋敏强)
Source PublicationSCIENCE ADVANCES
2019-08-01
Volume5Issue:8Pages:7
ISSN2375-2548
Abstract

Structural rejuvenation of glasses not only provides fundamental insights into their complicated dynamics but also extends their practical applications. However, it is formidably challenging to rejuvenate a glass on very short time scales. Here, we present the first experimental evidence that a specially designed shock compression technique can rapidly rejuvenate metallic glasses to extremely high-enthalpy states within a very short time scale of about 365 +/- 8 ns. By controlling the shock stress amplitude, the shock-induced rejuvenation is successfully frozen at different degrees. The underlying structural disordering is quantitatively characterized by the anomalous boson heat capacity peak of glasses. A Deborah number, defined as a competition of time scales between the net structural disordering and the applied loading, is introduced to explain the observed ultrafast rejuvenation phenomena of metallic glasses.

DOI10.1126/sciadv.aaw6249
Indexed BySCI ; EI
Language英语
WOS IDWOS:000482759500010
WOS KeywordAMORPHOUS ALLOY ; STRUCTURAL RELAXATION ; SHEAR BANDS ; FREE-VOLUME ; LIQUIDS ; DEFORMATION ; PLASTICITY ; DYNAMICS ; STRENGTH ; ORIGIN
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Funding ProjectNational Natural Science Foundation of China[11522221] ; National Natural Science Foundation of China[11790292] ; Youth Innovation Promotion Association of CAS[2013012]
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS
Classification一类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79992
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Ding G,Li C,Zaccone A,et al. Ultrafast extreme rejuvenation of metallic glasses by shock compression[J]. SCIENCE ADVANCES,2019,5(8):7.
APA Ding G.,Li C.,Zaccone A.,Wang WH.,Lei HC.,...&Jiang MQ.(2019).Ultrafast extreme rejuvenation of metallic glasses by shock compression.SCIENCE ADVANCES,5(8),7.
MLA Ding G,et al."Ultrafast extreme rejuvenation of metallic glasses by shock compression".SCIENCE ADVANCES 5.8(2019):7.
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