Rejuvenated metallic glass strips produced via twin-roll casting
文献类型：期刊论文
| 作者 | Zhang, Long; Wu, Yi; Feng, Shidong; Li, Wen; Zhang, Hongwei; Fu, Huameng; Li, Hong; Zhu, Zhengwang; Zhang, Haifeng |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 38页码:73-79 |
| DOI | 10.1016/j.jmst.2019.08.022 |
| 英文摘要 | The 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. |
| WOS记录号 | WOS:000503164100009 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/83147]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：金属研究所
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