| Principle and in-situ observation on discrete solidification | |
| Ma, Xiaoping1; Li, Dianzhong1; Zhao, Zhuo2; Liu, Hongwei1; Cao, Yanfei1; Fu, Paixian1; Wang, Pei1 | |
| 通讯作者 | Li, Dianzhong(dzli@imr.ac.cn) |
| 2024-09-01 | |
| 发表期刊 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| 卷号 | 192页码:28-41 |
| 摘要 | Solidification is an important branch of material science. By model calculation and in-situ observation in this work, distinct from traditional solidification of continuous solid growth, the evolution of discrete solidification was investigated, and a new principle for discrete solidification is established based on segregation evolution in a semi-solid matrix. The solidification evolution of Al-2 wt.%Cu alloy was investigated by model calculation under different initial undercooling and cooling rates, under superimposed multi-scale temperature fluctuations, and under variable temperature fluctuations. The initiation and propagation of segregation fluctuations in semi-solid matrix were verified within a traditional dendritic arm. The alternate solid elements evolved from semi-solid matrix act as periodic dams inhibiting serious segregation. Based on the new solidification principle, a multi-scale dendritic pattern was reproduced in a two-dimensional calculation. The new solidification principle reveals the essence of multi-scale microstructures as multi-scale segregation patterns and highlights the feasibility of controlling multi-scale microstructures and segregations. (c) 2024Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 关键词 | Solidification principle Dendrite Segregation Semi -solid matrix |
| 资助者 | General Program of the National Natural Science Foundation of China ; Key Program of the National Natural Science Foundation of China |
| DOI | 10.1016/j.jmst.2023.12.023 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | General Program of the National Natural Science Foundation of China[52271041] ; Key Program of the National Natural Science Foundation of China[52031013] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:001204473800001 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/185569 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Li, Dianzhong |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol Liaoning, Dept Mat Sci Engn, Anshan 114051, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Xiaoping,Li, Dianzhong,Zhao, Zhuo,et al. Principle and in-situ observation on discrete solidification[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,192:28-41. |
| APA | Ma, Xiaoping.,Li, Dianzhong.,Zhao, Zhuo.,Liu, Hongwei.,Cao, Yanfei.,...&Wang, Pei.(2024).Principle and in-situ observation on discrete solidification.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,192,28-41. |
| MLA | Ma, Xiaoping,et al."Principle and in-situ observation on discrete solidification".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 192(2024):28-41. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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