| Columnar to equiaxed transition mechanism of pure copper induced by La | |
| Wu, Jin-Hu1,2; Zhang, Shi-Hong1; Song, Hong-Wu1; Chen, Yan1 | |
| Corresponding Author | Zhang, Shi-Hong(shzhang@imr.ac.cn) |
| 2018 | |
| Source Publication | MATERIALS SCIENCE AND TECHNOLOGY
 |
| ISSN | 0267-0836 |
| Volume | 34Issue:14Pages:1759-1767 |
| Abstract | 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. |
| Keyword | La copper solidification columnar to equiaxed transition |
| DOI | 10.1080/02670836.2018.1480875 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000444708700015 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/129479 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Shi-Hong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| Recommended Citation 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. |
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