Improvement of the oxidation resistance of NiCrAlY coatings by the addition of rhenium

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	Improvement of the oxidation resistance of NiCrAlY coatings by the addition of rhenium
	L. Huang; X. F. Sun; H. R. Guan; Z. Q. Hu
	2006
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	201 期号:3-4 页码:1421-1425
摘要	NiCrAlY coatings are commonly used to improve the oxidation resistance of gas turbine blade. In this research, the cyclic oxidation behavior at 1000 degrees C of NiCrAlY coatings with and without Re addition was investigated. XRD was used to identify the oxide phases formed oil the coatings. The microstructural changes in the coatings during oxidation were examined by SEM, EDX and EPMA. The results indicate that the addition of Re decreases the oxidation rate of NiCrAlY coatings. After long-term oxidation, some less protective oxides (such as NiCr2O4 and NiAl2O4) were observed on the surface of the NiCrAlY coatings, while the scale formed on the NiCrAlYRe coatings was still composed of protective alpha-Al2O3. Therefore, it is concluded that the addition of Re clearly improves the oxidation resistance of NiCrAlY coatings in cyclic oxidation conditions. (c) 2006 Published by Elsevier B.V.
部门归属	chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china.;huang, l (reprint author), chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china;lhuang@imr.ac.cn
关键词	Coating Rhenium Oxidation Microstructure Nicraly Nickel
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WOS记录号	WOS:000244477300126
引用统计	被引频次：56[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/321006/34255
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Huang,X. F. Sun,H. R. Guan,et al. Improvement of the oxidation resistance of NiCrAlY coatings by the addition of rhenium[J]. Surface & Coatings Technology,2006,201(3-4):1421-1425.
APA	L. Huang,X. F. Sun,H. R. Guan,&Z. Q. Hu.(2006).Improvement of the oxidation resistance of NiCrAlY coatings by the addition of rhenium.Surface & Coatings Technology,201(3-4),1421-1425.
MLA	L. Huang,et al."Improvement of the oxidation resistance of NiCrAlY coatings by the addition of rhenium".Surface & Coatings Technology 201.3-4(2006):1421-1425.