Rejuvenated metallic glass strips produced via twin-roll casting
Zhang, Long1; Wu, Yi1,2; Feng, Shidong3,4; Li, Wen2; Zhang, Hongwei1; Fu, Huameng1; Li, Hong1; Zhu, Zhengwang1; Zhang, Haifeng1
Corresponding AuthorZhang, Long( ; Zhang, Haifeng(
AbstractThe energy state and atomic level structure of metallic glasses (MGs) are very sensitive to their cooling rates, and a lower cooling rate generally causes a lower energy and more relaxed state of MGs. In this work, the Zr41.2Ti13.8Cu12.5Ni10Be22.5 (Vit. 1) ribbons with a thickness of 40 mu m and 110 mu m and the strips with a thickness of 320 mu m and 490 mu m were produced by single-roll melt spinning and twin-roll casting, respectively. The increase in thickness of either ribbons or strips results in a lower energy state with a smaller relaxation enthalpy, a lower content of free volume, and a higher hardness. Although the cooling rate of the twin-roll produced 320 mu m-thick strip is almost one magnitude lower than that of the single-roll produced 110 mu m-thick ribbon, the former, however, possesses a rejuvenated energy state as compared to the latter. Molecular dynamics simulations reveal that the squeezing force during twin-roll casting affects the evolution of connection types of clusters, and the 2-atom and 4-atom connections are prone to be retained, which results in a higher energy state of MGs. Such a rejuvenation process during twin-roll casting can overwhelm the relaxation process caused by the lower cooling rate. Therefore, twin-roll casting is not only a method being capable for producing strips with a large thickness, but also prone to obtain a high energy state of the MG strip. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordMetallic glass Metallic glass strip Twin-roll casting Rejuvenation Cluster connection
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; Liaoning Revitalization Talents Program ; China Postdoctoral Science Foundation ; Dongguan Innovative Research Team Program
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[51701213] ; National Natural Science Foundation of China[51801174] ; National Key Research and Development Program of China[2018YFB0703402] ; Liaoning Revitalization Talents Program[XLYC1802078] ; Liaoning Revitalization Talents Program[XLYC1807062] ; China Postdoctoral Science Foundation[2018M633005] ; Dongguan Innovative Research Team Program[2014607134]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000503164100009
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhang, Long; Zhang, Haifeng
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
2.Shenyang Ligong Univ, Shenyang 110159, Liaoning, Peoples R China
3.Hong Kong Polytech Univ, Adv Mfg Technol Res Ctr, Dept Ind & Syst Engn, Hong Kong 999077, Peoples R China
4.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Long,Wu, Yi,Feng, Shidong,et al. Rejuvenated metallic glass strips produced via twin-roll casting[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,38:73-79.
APA Zhang, Long.,Wu, Yi.,Feng, Shidong.,Li, Wen.,Zhang, Hongwei.,...&Zhang, Haifeng.(2020).Rejuvenated metallic glass strips produced via twin-roll casting.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,38,73-79.
MLA Zhang, Long,et al."Rejuvenated metallic glass strips produced via twin-roll casting".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 38(2020):73-79.
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