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Ion-plated Al-Al2O3 films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti2AlNb alloy
Li, H. Q.; Wang, Q. M.; Jiang, S. M.; Gong, J.; Sun, C.
Corresponding AuthorWang, Q. M.(qmwang@imr.ac.cn)
2010-05-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume52Issue:5Pages:1668-1674
AbstractIon-plated Al-Al2O3 cermet films were fabricated as diffusion barriers between NiCrAlY coating and orthhombic-Ti2AlNb 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-Al2O3 diffusion barriers, deferred interdiffusion and improved oxidation resistance was observed. Among them, duplex coating containing 1Al-Al2O3 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.
KeywordMetal coatings Titanium SEM XRD Oxidation
Funding OrganizationNatural Science Foundation of China
DOI10.1016/j.corsci.2010.02.002
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of China[50701046]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000277224400016
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/99725
Collection中国科学院金属研究所
Corresponding AuthorWang, Q. M.
AffiliationChinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, H. Q.,Wang, Q. M.,Jiang, S. M.,et al. Ion-plated Al-Al2O3 films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti2AlNb alloy[J]. CORROSION SCIENCE,2010,52(5):1668-1674.
APA Li, H. Q.,Wang, Q. M.,Jiang, S. M.,Gong, J.,&Sun, C..(2010).Ion-plated Al-Al2O3 films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti2AlNb alloy.CORROSION SCIENCE,52(5),1668-1674.
MLA Li, H. Q.,et al."Ion-plated Al-Al2O3 films as diffusion barriers between NiCrAlY coating and orthorhombic-Ti2AlNb alloy".CORROSION SCIENCE 52.5(2010):1668-1674.
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