Effect of solidification rate on the microstructure of a Ni-base superalloy

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	Effect of solidification rate on the microstructure of a Ni-base superalloy
	X. B. Huang ; Y. Zhang ; Z. Q. Hu ; H. H. Deng ; Y. L. Liu
刊名	Materials Transactions Jim
	1997
卷号	38 期号:11 页码:1016-1021
关键词	superalloy solidification microstructure
ISSN号	0916-1821
中文摘要	The effect of solidification rate on the solidified structure, solute segregation and microstructures such as carbide, gamma'gamma eutectic, gamma' phase and dendrite arm spacing was experimentally investigated employing a method of partially directional solidification and subsequent quick quenching. Three types of the solidified structure were identified: cellular, cellular-dendritic and developed dendrite-type, and the width of a mushy zone was narrowed when solidification rate increased from 2.5 mu m/s to 125 mu m/s. The carbide morphologies were affected by both solidified structure and solidification rate, it formed into bar-type in the cellular structure, and Chinese script-type in the dendrite structure. The increase of solidification rate caused a lot of gamma'/gamma eutectic and the change of gamma' phase from cubic into cubic-round. The dendrite arm spacing decreased and the segregation of Cr, Al, Co, Mo, Ti was alleviated with increasing solidification rate.
原文出处	://WOS:000071195600012
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/37981]
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	X. B. Huang,Y. Zhang,Z. Q. Hu,et al. Effect of solidification rate on the microstructure of a Ni-base superalloy[J]. Materials Transactions Jim,1997,38(11):1016-1021.
APA	X. B. Huang,Y. Zhang,Z. Q. Hu,H. H. Deng,&Y. L. Liu.(1997).Effect of solidification rate on the microstructure of a Ni-base superalloy.Materials Transactions Jim,38(11),1016-1021.
MLA	X. B. Huang,et al."Effect of solidification rate on the microstructure of a Ni-base superalloy".Materials Transactions Jim 38.11(1997):1016-1021.