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Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169
Zhang, Kuiliang1,2; Li, Yingju1,2; Yang, Yuansheng1,2
Corresponding AuthorYang, Yuansheng(ysyang@imr.ac.cn)
2020-07-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume48Pages:9-17
AbstractThe low voltage pulsed magnetic field (LVPMF) disrupts the columnar dendrite growth, and the columnarto-equiaxed transition (CET) occurs during the directional solidification of superalloy K4169. Within the pulse voltage ranging from 100 V to 200 V, a transition from columnar to equiaxed grain was observed, and the grain size decreased as the pulse voltage rised. As the pulse frequency increased, the CET occurred, and the grains were refined. However, the grains became coarse, and the solidification structure was columnar crystal again when frequency increased to 10 Hz. The LVPMF had an optimal frequency to promote CET. The LVPMF on the CET was affected by the withdrawal speed and increasing the withdrawal speed enhances the CET. The distribution of electromagnetic force and flow field in the melt under the LVPMF were modeled and simulated to reveal the CET mechanism. It is considered that the CET should be attributed to the coupling effects of magnetic vibration and melt convection induced by the LVPMF. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordCET Low voltage pulsed magnetic field Simulation Directional solidification Superalloy
Funding OrganizationNational Natural Science Foundation of China ; Key Research and Development Program of Liaoning Province ; National Science and Technology Major Project ; National Key Research and Development Program
DOI10.1016/j.jmst.2020.02.009
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51674236] ; Key Research and Development Program of Liaoning Province[2019JH2/10100009] ; National Science and Technology Major Project[2017-VI-00-0073] ; National Key Research and Development Program[2018YFA0702900]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000534323200002
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138948
Collection中国科学院金属研究所
Corresponding AuthorYang, Yuansheng
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Kuiliang,Li, Yingju,Yang, Yuansheng. Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,48:9-17.
APA Zhang, Kuiliang,Li, Yingju,&Yang, Yuansheng.(2020).Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,48,9-17.
MLA Zhang, Kuiliang,et al."Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 48(2020):9-17.
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