Interfacial reactions and oxidation behavior of Al(2)O(3) and Al(2)O(3)/Al coatings on an orthorhombic Ti(2)AlNb alloy

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	Interfacial reactions and oxidation behavior of Al(2)O(3) and Al(2)O(3)/Al coatings on an orthorhombic Ti(2)AlNb alloy
	H. Q. Li; Q. M. Wang; J. Gong; C. Sun
	2011
发表期刊	Applied Surface Science
ISSN	0169-4332
卷号	257 期号:9 页码:4105-4112
摘要	The uniform and dense Al(2)O(3) and Al(2)O(3)/Al coatings were deposited on an orthorhombic Ti(2)AlNb alloy by filtered arc ion plating. The interfacial reactions of the Al(2)O(3)/Ti(2)AlNb and Al(2)O(3)/Al/Ti(2)AlNb specimens after vacuum annealing at 750 degrees C were studied. In the Al(2)O(3)/Ti(2)AlNb specimens, the Al(2)O(3) coating decomposed significantly due to reaction between the Al(2)O(3) coating and the O-Ti(2)AlNb substrate. In the Al(2)O(3)/Al/Ti(2)AlNb specimens, a gamma-TiAl layer and an Nb-rich zone came into being by interdiffusion between the Al layer and the O-Ti(2)AlNb substrate. The gamma-TiAl layer is chemically compatible with Al(2)O(3), with no decomposition of Al(2)O(3) being detected. No internal oxidation or oxygen and nitrogen dissolution zone was observed in the O-Ti(2)AlNb alloy. The Al(2)O(3)/Al/Ti(2)AlNb specimens exhibited excellent oxidation resistance at 750 degrees C. (C) 2010 Elsevier B. V. All rights reserved.
部门归属	[li, h. q.; wang, q. m.; gong, j.; sun, c.] chinese acad sci, div surface engn mat, inst met res, shenyang 110016, liaoning, peoples r china.;wang, qm (reprint author), chinese acad sci, div surface engn mat, inst met res, 72 wenhua rd, shenyang 110016, liaoning, peoples r china;qmwang@imr.ac.cn csun@imr.ac.cn
关键词	Al(2)o(3) O-ti(2)Alnb Alloy Interfacial Reaction Oxidation Tial Alloys Air 800-degrees-c Ti-22al-25nb Aluminide Films
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30463
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,J. Gong,et al. Interfacial reactions and oxidation behavior of Al(2)O(3) and Al(2)O(3)/Al coatings on an orthorhombic Ti(2)AlNb alloy[J]. Applied Surface Science,2011,257(9):4105-4112.
APA	H. Q. Li,Q. M. Wang,J. Gong,&C. Sun.(2011).Interfacial reactions and oxidation behavior of Al(2)O(3) and Al(2)O(3)/Al coatings on an orthorhombic Ti(2)AlNb alloy.Applied Surface Science,257(9),4105-4112.
MLA	H. Q. Li,et al."Interfacial reactions and oxidation behavior of Al(2)O(3) and Al(2)O(3)/Al coatings on an orthorhombic Ti(2)AlNb alloy".Applied Surface Science 257.9(2011):4105-4112.