Effect of minor niobium addition on microstructure of a nickel-base directionally solidified superalloy

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	Effect of minor niobium addition on microstructure of a nickel-base directionally solidified superalloy
	K. Zhao; L. H. Lou; Y. H. Ma; Z. Q. Hu
	2008
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	476 期号:1-2 页码:372-377
摘要	Scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron probe microanalysis (EPMA) and differential scanning calorimetry (DSC) were used to study the effect of minor niobium addition on as-cast microstructure of a nickel-base directionally solidified superalloy. A proper niobium addition resulted in the formation of homogeneous gamma' particles almost with the same size throughout the whole dendrite. The ternary eutectic reaction L -> (M23C6 + gamma + gamma') occurred with increasing niobium content, but no eutectic was found when mobium content was high enough because the NbC preferably precipitated and the eutectic reaction was suppressed. (C) 2007 Elsevier B.V. All rights reserved.
部门归属	[zhao, k.; lou, l. h.; ma, y. h.; hu, z. q.] chinese acad sci, inst met res, shenyang 110016, peoples r china.;zhao, k (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;kzhao@inir.ac.cn
关键词	Nickel-base Superalloy Gamma' Phase Carbide Ternary Eutectic Hot Corrosion
URL	查看原文
WOS记录号	WOS:000253693200051
引用统计	被引频次：21[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/321006/33364
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. Zhao,L. H. Lou,Y. H. Ma,et al. Effect of minor niobium addition on microstructure of a nickel-base directionally solidified superalloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,476(1-2):372-377.
APA	K. Zhao,L. H. Lou,Y. H. Ma,&Z. Q. Hu.(2008).Effect of minor niobium addition on microstructure of a nickel-base directionally solidified superalloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,476(1-2),372-377.
MLA	K. Zhao,et al."Effect of minor niobium addition on microstructure of a nickel-base directionally solidified superalloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 476.1-2(2008):372-377.