Ion-plated Al-Al(2)O(3) films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti(2)AlNb alloy

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	Ion-plated Al-Al(2)O(3) films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti(2)AlNb alloy
	H. Q. Li; Q. M. Wang; S. M. Jiang; J. Gong; C. Sun
	2010
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	52 期号:5 页码:1668-1674
摘要	Ion-plated Al-Al(2)O(3) cermet films were fabricated as diffusion barriers between NiCrAlY coating and orthhombic-Ti(2)AlNb alloy. The oxidation and interdiffusion behaviour of coatings with and without diffusion barrier were investigated in isothermal and cyclic oxidation tests at 800 degrees C. The results indicated that substantial interdiffusion and rapid oxidation degradation occurred in the coated specimens without diffusion barrier. With Al-Al(2)O(3) diffusion barriers, deferred interdiffusion and improved oxidation resistance was observed. Among them, duplex coating containing 1Al-Al(2)O(3) interlayer exhibited the best performance. Coefficient of diffusion hindering and factor of reaction hindering were proposed to compare and quantify the efficiency of the diffusion barriers. (C) 2010 Elsevier Ltd. All rights reserved.
部门归属	[li, h. q.; wang, q. m.; jiang, s. m.; gong, j.; sun, c.] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china.;wang, qm (reprint author), chinese acad sci, state key lab corros & protect, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;qmwang@imr.ac.cn
关键词	Metal Coatings Titanium Sem Xrd Oxidation Gas-turbine Blades Oxidation Behavior Ti2alnb Alloys Mcraly-coatings Temperature Intermetallics Interdiffusion Protection Resistance Aluminum
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31210
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Q. Li,Q. M. Wang,S. M. Jiang,et al. Ion-plated Al-Al(2)O(3) films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti(2)AlNb alloy[J]. Corrosion Science,2010,52(5):1668-1674.
APA	H. Q. Li,Q. M. Wang,S. M. Jiang,J. Gong,&C. Sun.(2010).Ion-plated Al-Al(2)O(3) films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti(2)AlNb alloy.Corrosion Science,52(5),1668-1674.
MLA	H. Q. Li,et al."Ion-plated Al-Al(2)O(3) films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti(2)AlNb alloy".Corrosion Science 52.5(2010):1668-1674.