Influence of Co addition on constituent phases and performance of a NiCrAlYRe alloy system

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	Influence of Co addition on constituent phases and performance of a NiCrAlYRe alloy system
	J. J. Liang; H. Wei; Y. L. Zhu; X. F. Sun; T. Jin; Z. Q. Hu; M. S. Dargusch; X. Yao
	2011
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	205 期号:21-22 页码:4968-4979
摘要	MCrAlY alloys can serve as stand-alone overlay coatings or bond coats in thermal barrier coating systems, and their phase constituents play a vital role in determining their performance. In the present investigation, the influence of Co addition on the constituent phases of a NiCrAlY alloy system containing 3 wt.% Re in the temperature range of 800 degrees C-1200 degrees C was predicted through thermodynamic modeling. Based on the modeling results, four NiCrAlY alloy systems with different levels of Co (0,10 wt.%, 20 wt.% and 30 wt.%) were prepared and evaluated experimentally. Scanning electron microscopy and transmission electron microscopy results show that the additions of Co increase the fractions of gamma-Ni and beta-NiAl at the expense of gamma'-Ni(3)Al and alpha-Cr, and thus change the depletion scheme from beta ->gamma' to beta ->gamma during 1100 degrees C oxidation. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[liang, j. j.; wei, h.; zhu, y. l.; sun, x. f.; jin, t.; hu, z. q.] cas, inst met res, shenyang 110016, peoples r china. [dargusch, m. s.; yao, x.] univ queensland, sch engn, brisbane, qld 4072, australia.;liang, jj (reprint author), cas, inst met res, shenyang 110016, peoples r china;jjliang@imr.ac.cn
关键词	Mcraly Thermodynamic Modeling Oxidation Cobalt Nicocraly Bond Coats Mcraly-coatings Oxidation Resistance Site Preference Rhenium Cr Ni Improvement Superalloy Adherence
URL	查看原文
WOS记录号	WOS:000293119800014
引用统计	被引频次：11[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/321006/30498
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. J. Liang,H. Wei,Y. L. Zhu,et al. Influence of Co addition on constituent phases and performance of a NiCrAlYRe alloy system[J]. Surface & Coatings Technology,2011,205(21-22):4968-4979.
APA	J. J. Liang.,H. Wei.,Y. L. Zhu.,X. F. Sun.,T. Jin.,...&X. Yao.(2011).Influence of Co addition on constituent phases and performance of a NiCrAlYRe alloy system.Surface & Coatings Technology,205(21-22),4968-4979.
MLA	J. J. Liang,et al."Influence of Co addition on constituent phases and performance of a NiCrAlYRe alloy system".Surface & Coatings Technology 205.21-22(2011):4968-4979.