Effects of Pulsed Magnetic Field on Microsegregation of Solute Elements in a Ni-Based Single Crystal Superalloy

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	Effects of Pulsed Magnetic Field on Microsegregation of Solute Elements in a Ni-Based Single Crystal Superalloy
	Li, Yingju ; Teng, Yuefei ; Feng, Xiaohui ; Yang, Yuansheng
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2017
卷号	33 期号:1 页码:105-110
关键词	Pulsed magnetic field Segregation Superalloy Distribution coefficient
ISSN号	1005-0302
通讯作者	Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang 110016, Peoples R China.
中文摘要	The effects of a pulsed magnetic field (PMF) on the microsegregation of solute elements during directional solidification of a Ni-based single crystal superalloy were experimentally investigated, and the results show that the PMF significantly affects the microsegregation of Al, Ti, Co, Mo and W elements in the alloy. However, the distribution behavior differs for both positive and negative segregation elements. With the PMF, the microsegregation of negative segregation elements, Co and W, was restrained effectively, while that of positive segregation elements, Al, Ti and Mo, was aggravated. A segregation model was established to reveal the distribution mechanism of the elements with PMF. It is considered that, under the action of PMF, the jumping of solute atoms from the liquid phase to solid phase is hindered, but the jumping of solute atoms from the solid phase into liquid phase is promoted during solidification. As a result, the effective distribution coefficient of the solute atoms is reduced, which leads to the reduction of microsegregation of negative segregation elements and aggravation of microsegregation of positive segregation elements. Copyright (C) 2017, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
收录类别	SCI
资助信息	National Natural Science Foundation of China [51034012]; National Basic Research Program of China [2010CB631205]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78364]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Li, Yingju,Teng, Yuefei,Feng, Xiaohui,et al. Effects of Pulsed Magnetic Field on Microsegregation of Solute Elements in a Ni-Based Single Crystal Superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2017,33(1):105-110.
APA	Li, Yingju,Teng, Yuefei,Feng, Xiaohui,&Yang, Yuansheng.(2017).Effects of Pulsed Magnetic Field on Microsegregation of Solute Elements in a Ni-Based Single Crystal Superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,33(1),105-110.
MLA	Li, Yingju,et al."Effects of Pulsed Magnetic Field on Microsegregation of Solute Elements in a Ni-Based Single Crystal Superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 33.1(2017):105-110.