| Columnar to equiaxed transition mechanism of pure copper induced by La | |
| Wu, Jin-Hu1,2; Zhang, Shi-Hong1; Song, Hong-Wu1; Chen, Yan1 | |
| 通讯作者 | Zhang, Shi-Hong(shzhang@imr.ac.cn) |
| 2018 | |
| 发表期刊 | MATERIALS SCIENCE AND TECHNOLOGY
 |
| ISSN | 0267-0836 |
| 卷号 | 34期号:14页码:1759-1767 |
| 摘要 | The solidification process of copper with and without La was observed by a high-temperature confocal laser scanning microscopy. The solidification microstructure was simulated by cellular-automaton and finite-element (CAFE) method and the source of equiaxed grains, the constitutional supercooling and nucleation rate were investigated. The results showed that some floats with regular shape appeared in copper melt with La addition, which is the source of equiaxed grains. The simulation results are in a good agreement with experimental results.The mechanism of columnar to equiaxed transition was that the spontaneous nucleation probability of copper melt was increased with La addition. The nucleation rate was increased due to the increase in critical nucleation temperature and constitutional supercooling, and the reduction of nucleation undercooling. |
| 关键词 | La copper solidification columnar to equiaxed transition |
| DOI | 10.1080/02670836.2018.1480875 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000444708700015 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/129479 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Zhang, Shi-Hong |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Jin-Hu,Zhang, Shi-Hong,Song, Hong-Wu,et al. Columnar to equiaxed transition mechanism of pure copper induced by La[J]. MATERIALS SCIENCE AND TECHNOLOGY,2018,34(14):1759-1767. |
| APA | Wu, Jin-Hu,Zhang, Shi-Hong,Song, Hong-Wu,&Chen, Yan.(2018).Columnar to equiaxed transition mechanism of pure copper induced by La.MATERIALS SCIENCE AND TECHNOLOGY,34(14),1759-1767. |
| MLA | Wu, Jin-Hu,et al."Columnar to equiaxed transition mechanism of pure copper induced by La".MATERIALS SCIENCE AND TECHNOLOGY 34.14(2018):1759-1767. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论