Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169

doi:10.1016/j.jmst.2020.02.009

CORC > 金属研究所 > 中国科学院金属研究所

	Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169
	Zhang, Kuiliang 1,2; Li, Yingju 1,2; Yang, Yuansheng 1,2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2020-07-01
卷号	48 页码:9-17
关键词	CET Low voltage pulsed magnetic field Simulation Directional solidification Superalloy
ISSN号	1005-0302
DOI	10.1016/j.jmst.2020.02.009
通讯作者	Yang, Yuansheng(ysyang@imr.ac.cn)
英文摘要	The 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.
资助项目	National 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研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000534323200002
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/138947]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, Yuansheng
作者单位	1.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
推荐引用方式 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.