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Investigation on oxidation and failure of the thermal barrier coating deposited on superalloy
Guan, HR; Li, MH; Sun, XF; Zhang, ZY; Hu, WY; Gong, SK; Jin, T; Zhao, NR; Hu, ZQ
Corresponding AuthorGuan, HR()
2002-11-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume38Issue:11Pages:1133-1140
AbstractThe developed status of thermal barrier coating was reviewed, and isothermal and thermally cyclic oxidations of EB-PVD (electron beam physical vapor deposited) thermal barrier coatings (TBC) were performed. It was shown that the oxidation of TBC approximately follows a parabolic kinetics at 1000 degreesC after the oxidation became stable. During thermal cycling, the microcracks are first formed in the ceramic top coat along the columnar grain boundaries, and then propagate in the ceramic top coat along and cross columnar direction. The growth stress of oxide scale and the thermally induced stress lead to occurance of many cracks at the interface of thermally grown oxides (TGO)/bond coat, resulting in failure of TBC in TGO or at the interface of TGO/bond coat.
Keywordsuperalloy thermal barrier coating oxidation failure
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000179827800003
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/115417
Collection中国科学院金属研究所
Corresponding AuthorGuan, HR
Affiliation1.Chinese Acad Sci, Met Res Inst, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
2.Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Peoples R China
3.Beijing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Guan, HR,Li, MH,Sun, XF,et al. Investigation on oxidation and failure of the thermal barrier coating deposited on superalloy[J]. ACTA METALLURGICA SINICA,2002,38(11):1133-1140.
APA Guan, HR.,Li, MH.,Sun, XF.,Zhang, ZY.,Hu, WY.,...&Hu, ZQ.(2002).Investigation on oxidation and failure of the thermal barrier coating deposited on superalloy.ACTA METALLURGICA SINICA,38(11),1133-1140.
MLA Guan, HR,et al."Investigation on oxidation and failure of the thermal barrier coating deposited on superalloy".ACTA METALLURGICA SINICA 38.11(2002):1133-1140.
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