In situ investigation on the precipitation of topologically close-packed phase in Ni-base single crystal superalloy

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	In situ investigation on the precipitation of topologically close-packed phase in Ni-base single crystal superalloy
	S. Gao; Y. Z. Zhou; C. F. Li; J. P. Cui; Z. Q. Liu; T. Jin
	2014
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	610 页码:589-593
摘要	In situ transmission electron microscopy was first applied to study the precipitation behavior of topologically close-packed (TCP) phase at elevated temperature in Ru-free and Ru-containing Ni-base single crystal superalloys. Ru addition can decrease both the nucleation and growth rate, hence to suppress TCP precipitation effectively. Higher exposure temperature reduces the nucleation rate but increases the growth rate, finally accelerates the precipitation. The TCP phases nucleate homogeneously in gamma matrix without preferential sites, but tend to grow toward primary gamma/gamma' interface for element supply. An orientation relationship is kept during nucleation and growth of mu phase in gamma matrix, which is [110](mu)//[001](gamma) and (001)(mu)//(-110)(gamma). (C) 2014 Elsevier B.V. All rights reserved.
部门归属	[gao, shuang ; zhou, yizhou ; li, cai-fu ; cui, jingping ; liu, zhi-quan ; jin, tao] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; zhou, yz (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china. ; yzzhou@imr.ac.cn ; zqliu@imr.ac.cn
关键词	High-temperature Alloys Precipitation Topologically Close-packed Phase In Situ Transmission Electron Microscopy Mu-phase Behavior Ruthenium Stability Additions
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73229
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Gao,Y. Z. Zhou,C. F. Li,et al. In situ investigation on the precipitation of topologically close-packed phase in Ni-base single crystal superalloy[J]. Journal of Alloys and Compounds,2014,610:589-593.
APA	S. Gao,Y. Z. Zhou,C. F. Li,J. P. Cui,Z. Q. Liu,&T. Jin.(2014).In situ investigation on the precipitation of topologically close-packed phase in Ni-base single crystal superalloy.Journal of Alloys and Compounds,610,589-593.
MLA	S. Gao,et al."In situ investigation on the precipitation of topologically close-packed phase in Ni-base single crystal superalloy".Journal of Alloys and Compounds 610(2014):589-593.