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
	1997
发表期刊	Materials Transactions Jim
ISSN	0916-1821
卷号	38 期号:11 页码:1016-1021
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.
部门归属	acad sinica, inst met res, shenyang 110015, peoples r china.;huang, xb (reprint author), acad sinica, inst met res, wenhua rd, shenyang 110015, peoples r china
关键词	Superalloy Solidification Microstructure
URL	查看原文
WOS记录号	WOS:000071195600012
引用统计	被引频次：4[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/321006/37981
专题	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.