Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study
文献类型：期刊论文
| 作者 | Hao, Weiye1,2; Gong, Tongzhao1; Chen, Yun1; Fan, Weiqi1,2; Chen, Xing-Qiu1 |
| 刊名 | MATERIALS TODAY COMMUNICATIONS
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 41页码:11 |
| 关键词 | Phase-field simulation Solidification Al alloys Inoculants Temperature gradient |
| DOI | 10.1016/j.mtcomm.2024.110701 |
| 通讯作者 | Chen, Yun(chenyun@imr.ac.cn) |
| 英文摘要 | The grain size of solidification microstructure has a significant influence on the mechanical properties of castings. Generally, smaller grain size makes the strength of castings higher. Therefore, inoculation is an effective strategy to reduce grain size and improve casting performance. In this work, the phase-field method combined with the free growth model is employed to simulate the solidification of inoculated aluminum alloy with temperature gradient. The simulations indicate that a higher temperature gradient slows the progression of already nucleated grains into impingement growth and enhances the undercooling of the melt ahead of the solid-liquid interface. Hence, more inoculants have chance to get the corresponding nucleation undercooling, promoting grain nucleated sequentially along the gradient direction. These results are consistent with previous real-time observed experiments. This work may provide guidance on improvement of the theoretical models for predicting grain size of inoculated alloys and the optimization of casting process to obtain refined grains in inoculated ingots. |
| 资助项目 | Leading Charge with Open Competition Project of Nanning City[20231082] ; National Science and Technology Major Project[J2019-V1-0019-0134] ; Youth Talent Program of Shenyang National Laboratory for Materials Science |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001339125100001 |
| 出版者 | ELSEVIER |
| 资助机构 | Leading Charge with Open Competition Project of Nanning City ; National Science and Technology Major Project ; Youth Talent Program of Shenyang National Laboratory for Materials Science |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Chen, Yun |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 10016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Weiye,Gong, Tongzhao,Chen, Yun,et al. Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study[J]. MATERIALS TODAY COMMUNICATIONS,2024,41:11. |
| APA | Hao, Weiye,Gong, Tongzhao,Chen, Yun,Fan, Weiqi,&Chen, Xing-Qiu.(2024).Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study.MATERIALS TODAY COMMUNICATIONS,41,11. |
| MLA | Hao, Weiye,et al."Temperature gradient mechanism in the heterogeneous nucleation of inoculated alloy: A quantitative phase-field study".MATERIALS TODAY COMMUNICATIONS 41(2024):11. |
入库方式： OAI收割
来源：金属研究所
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