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Columnar to equiaxed transition mechanism of pure copper induced by La
Wu, Jin-Hu1,2; Zhang, Shi-Hong1; Song, Hong-Wu1; Chen, Yan1
Corresponding AuthorZhang, Shi-Hong(shzhang@imr.ac.cn)
2018
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume34Issue:14Pages:1759-1767
AbstractThe 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.
KeywordLa copper solidification columnar to equiaxed transition
DOI10.1080/02670836.2018.1480875
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000444708700015
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129479
Collection中国科学院金属研究所
Corresponding AuthorZhang, Shi-Hong
Affiliation1.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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