Improvement of oxidation-resistance of NiCrAlY coatings by application of CrN or CrON interlayer

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	Improvement of oxidation-resistance of NiCrAlY coatings by application of CrN or CrON interlayer
	W. Z. Li; Y. Yao; Q. M. Wang; Z. B. Bao; J. Gong; C. Sun; X. Jiang
	2008
发表期刊	Journal of Materials Research
ISSN	0884-2914
卷号	23 期号:2 页码:341-352
摘要	NiCrAlY coatings with and without CrN or CrON interlayer as diffusion barrier were deposited on superalloy DSM11 by arc ion plating (AIP). The oxidation performance of the coating systems was evaluated by isothermal oxidation tests at 1100 C for 100 h. The element interdiffusion and oxidation behavior of the coating systems were described. It was found that the NiCrAlY coatings provided protective effect for the DSM11 substrate. However, serious interdiffusion between the coatings and substrate resulted in rapid degradation of the coatings. The addition of CrN or CrON interlayer between the coatings and substrate markedly decreased the interdiffusion. CrON interlayer performed better than CrN interlayer, which was attributed to the excellent diffusion barrier ability of Al2O3 layer formed in the interlayer at high temperature. Also, the NiCrAlY/CrON coating system exhibited more effective protection for DSM11 than the NiCrAlY/CrN coating system.
部门归属	[li, w. z.; yao, y.; wang, q. m.; bao, z. b.; gong, j.; sun, c.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [jiang, x.] univ siegen, inst mat engn, d-57076 siegen, germany. [li, w. z.] guangxi univ, sch resources & environm, nanning 530004, peoples r china.;sun, c (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;csun@imr.ac.cn
关键词	High-temperature Oxidation Hot-corrosion Behavior Gas-turbine Blades Diffusion Barrier Nicocraly Coatings Interdiffusion Deposition Design Films Superalloy
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WOS记录号	WOS:000253010800008
引用统计	被引频次：26[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/321006/32899
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Z. Li,Y. Yao,Q. M. Wang,et al. Improvement of oxidation-resistance of NiCrAlY coatings by application of CrN or CrON interlayer[J]. Journal of Materials Research,2008,23(2):341-352.
APA	W. Z. Li.,Y. Yao.,Q. M. Wang.,Z. B. Bao.,J. Gong.,...&X. Jiang.(2008).Improvement of oxidation-resistance of NiCrAlY coatings by application of CrN or CrON interlayer.Journal of Materials Research,23(2),341-352.
MLA	W. Z. Li,et al."Improvement of oxidation-resistance of NiCrAlY coatings by application of CrN or CrON interlayer".Journal of Materials Research 23.2(2008):341-352.