Investigation on oxidation and failure of the thermal barrier coating deposited on superalloy

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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
刊名	ACTA METALLURGICA SINICA
	2002-11-01
卷号	38 期号:11 页码:1133-1140
关键词	superalloy thermal barrier coating oxidation failure
ISSN号	0412-1961
通讯作者	Guan, HR()
英文摘要	The 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.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000179827800003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/115416]
专题	金属研究所_中国科学院金属研究所
通讯作者	Guan, HR
作者单位	1.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
推荐引用方式 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.