Columnar to equiaxed transition mechanism of pure copper induced by La
文献类型：期刊论文
| 作者 | Wu, Jin-Hu1,2; Zhang, Shi-Hong1; Song, Hong-Wu1; Chen, Yan1 |
| 刊名 | MATERIALS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 34期号:14页码:1759-1767 |
| 关键词 | La copper solidification columnar to equiaxed transition |
| ISSN号 | 0267-0836 |
| DOI | 10.1080/02670836.2018.1480875 |
| 通讯作者 | Zhang, Shi-Hong(shzhang@imr.ac.cn) |
| 英文摘要 | 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. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000444708700015 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/129480]  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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