Interfacial reactions and oxidation behavior of Al2O3 and Al2O3/Al coatings on an orthorhombic Ti2AlNb alloy

doi:10.1016/j.apsusc.2010.12.008

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	Interfacial reactions and oxidation behavior of Al2O3 and Al2O3/Al coatings on an orthorhombic Ti2AlNb alloy
	Li, H. Q.; Wang, Q. M.; Gong, J.; Sun, C.
刊名	APPLIED SURFACE SCIENCE
	2011-02-15
卷号	257 期号:9 页码:4105-4112
关键词	Al2O3 O-Ti2AlNb alloy Interfacial reaction Oxidation
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2010.12.008
通讯作者	Wang, Q. M.(qmwang@imr.ac.cn)
英文摘要	The uniform and dense Al2O3 and Al2O3/Al coatings were deposited on an orthorhombic Ti2AlNb alloy by filtered arc ion plating. The interfacial reactions of the Al2O3/Ti2AlNb and Al2O3/Al/Ti2AlNb specimens after vacuum annealing at 750 degrees C were studied. In the Al2O3/Ti2AlNb specimens, the Al2O3 coating decomposed significantly due to reaction between the Al2O3 coating and the O-Ti2AlNb substrate. In the Al2O3/Al/Ti2AlNb specimens, a gamma-TiAl layer and an Nb-rich zone came into being by interdiffusion between the Al layer and the O-Ti2AlNb substrate. The gamma-TiAl layer is chemically compatible with Al2O3, with no decomposition of Al2O3 being detected. No internal oxidation or oxygen and nitrogen dissolution zone was observed in the O-Ti2AlNb alloy. The Al2O3/Al/Ti2AlNb specimens exhibited excellent oxidation resistance at 750 degrees C. (C) 2010 Elsevier B. V. All rights reserved.
资助项目	Natural Science Foundation of China[50701046] ; Natural Science Foundation of China[50571101]
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000286459600050
资助机构	Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/105842]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Q. M.
作者单位	Chinese Acad Sci, Div Surface Engn Mat, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, H. Q.,Wang, Q. M.,Gong, J.,et al. Interfacial reactions and oxidation behavior of Al2O3 and Al2O3/Al coatings on an orthorhombic Ti2AlNb alloy[J]. APPLIED SURFACE SCIENCE,2011,257(9):4105-4112.
APA	Li, H. Q.,Wang, Q. M.,Gong, J.,&Sun, C..(2011).Interfacial reactions and oxidation behavior of Al2O3 and Al2O3/Al coatings on an orthorhombic Ti2AlNb alloy.APPLIED SURFACE SCIENCE,257(9),4105-4112.
MLA	Li, H. Q.,et al."Interfacial reactions and oxidation behavior of Al2O3 and Al2O3/Al coatings on an orthorhombic Ti2AlNb alloy".APPLIED SURFACE SCIENCE 257.9(2011):4105-4112.