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Rejuvenation in Hot-Drawn Micrometer Metallic Glassy Wires*

文献类型：期刊论文

作者Dong J(董杰)4,5; Feng YH(冯义辉)3; Xun Y(郇勇)3; Yi J2; Wang WH1,4,5; Bai HY1,4,5; Sun BA1,5; Feng YH(冯义辉); Huan Y(郇勇)
刊名CHINESE PHYSICS LETTERS
出版日期2020
卷号37期号:1页码:4
关键词71 23 Cq
ISSN号0256-307X
DOI10.1088/0256-307X/37/1/017103
通讯作者Bai, Hai-Yang(hybai@iphy.ac.cn) ; Sun, Bao-An(sunba@iphy.ac.cn)
英文摘要We report an enhanced rejuvenation in hot-drawn micrometer metallic glassy wires (MG wires) with the size reduction. Compared to metallic glasses (MGs) in bulk form, the modulus and hardness for the micro-scale MG wires, tested by nanoindentation methods, are much lower and decrease with the decreasing size, with a maximum decrease of similar to 26% in modulus and similar to 17% in hardness. This pronounced rejuvenation is evidenced by the larger sub-T-g relaxation enthalpy of the MG wires. The pronounced rejuvenation is physically related to the higher energy state induced by a combined effect of severely thermomechanical shearing and freezing the shear flow into a constrained small-volume region. Our results reveal that the internal states and properties of MGs can be dramatically changed by a proper modulation of temperature, flow stress and size.
分类号Q4
WOS关键词ELASTIC PROPERTIES
资助项目National Key Research and Development Program of China[2018YFA0703603] ; National Key Research and Development Program of China[2017YFB0903902] ; National Key Research and Development Program of China[2016YFB0300501] ; National Natural Science Foundation of China[51822107] ; National Natural Science Foundation of China[11790291] ; National Natural Science Foundation of China[51671121] ; National Natural Science Foundation of China[51761135125] ; National Natural Science Foundation of Guangdong Province[2019B030302010] ; Key Research Program of Frontier Sciences[QYZDY-SSW-JSC017] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB30000000]
WOS研究方向Physics
语种英语
WOS记录号WOS:000507867700001
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of Guangdong Province ; Key Research Program of Frontier Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences
其他责任者Bai, Hai-Yang ; Sun, Bao-An
源URL[http://dspace.imech.ac.cn/handle/311007/81316]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
2.Shanghai Univ, Sch Mat Sci & Engn, Inst Mat, Shanghai 200444, Peoples R China;
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China;
4.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China;
5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Dong J,Feng YH,Xun Y,et al. Rejuvenation in Hot-Drawn Micrometer Metallic Glassy Wires*[J]. CHINESE PHYSICS LETTERS,2020,37(1):4.
APA 董杰.,冯义辉.,郇勇.,Yi J.,Wang WH.,...&Huan Y.(2020).Rejuvenation in Hot-Drawn Micrometer Metallic Glassy Wires*.CHINESE PHYSICS LETTERS,37(1),4.
MLA 董杰,et al."Rejuvenation in Hot-Drawn Micrometer Metallic Glassy Wires*".CHINESE PHYSICS LETTERS 37.1(2020):4.

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来源：力学研究所

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