Grain refinement effect of pulsed magnetic field on solidified microstructure of superalloy IN718

IMR OpenIR

	Grain refinement effect of pulsed magnetic field on solidified microstructure of superalloy IN718
	X. P. Ma; Y. J. Li; Y. S. Yang
	2009
发表期刊	Journal of Materials Research
ISSN	0884-2914
卷号	24 期号:10 页码:3174-3181
摘要	The refinement mechanism of pulsed magnetic field (PMF) was discussed by experimental investigation, and the effects of exciting frequency, exciting voltage, and delay time of PMF on grains refinement of superalloy were studied. The experimental results show that, as exciting frequency or exciting voltage is increased, the grains are refined. However, the grains become coarse when frequency increases further. As delay time of PMF increases, the grain size increases. The refinement effect of PMF is attributed to the detachment of heterogeneous nuclei on the mold wall and subsequently separation of nuclei in the melt. The Joule heat can prolong the continuous nucleation process. However, the refinement effect will be impaired if the Joule heat is strong enough to remelt the detached nuclei.
部门归属	[ma, xiaoping; li, yingju; yang, yuansheng] chinese acad sci, inst met res, shenyang 110016, peoples r china.;yang, ys (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;ysyang@imr.ac.cn
关键词	Electromagnetic Vibrations Stainless-steel Alloys Al Frequency Magnesium
URL	查看原文
WOS记录号	WOS:000270500100023
引用统计	被引频次：26[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32188
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. P. Ma,Y. J. Li,Y. S. Yang. Grain refinement effect of pulsed magnetic field on solidified microstructure of superalloy IN718[J]. Journal of Materials Research,2009,24(10):3174-3181.
APA	X. P. Ma,Y. J. Li,&Y. S. Yang.(2009).Grain refinement effect of pulsed magnetic field on solidified microstructure of superalloy IN718.Journal of Materials Research,24(10),3174-3181.
MLA	X. P. Ma,et al."Grain refinement effect of pulsed magnetic field on solidified microstructure of superalloy IN718".Journal of Materials Research 24.10(2009):3174-3181.