Oxidation behavior of glass-based composite thermal barrier coating on K417G superalloy with a NiCoCrAlY bond coat at 1000 degrees C

IMR OpenIR

	Oxidation behavior of glass-based composite thermal barrier coating on K417G superalloy with a NiCoCrAlY bond coat at 1000 degrees C
	Wang, Xin; Chen, Minghui; Zhu, Shenglong; Wang, Fuhui; wangx@alum.imr.ac.cn; slzhu@imr.ac.cn
	2015
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	270 页码:314-323
摘要	A novel thermal barrier coating (TBC) of glass-based composite with inclusions of Nickel, Y-PSZ, and corundum particles was prepared by sintering on K417G superalloy with a NiCoCrAlY bond-coat (BC). Aiming at prohibiting the interfacial reactions between BC and the composite top-coat (TC), pre-oxidation process of BC was carried out to form a continuous alpha-Al2O3 scale. However, a very thin but continuous layer of gahnite formed at the alpha-Al2O3 scale/TC interface as a result of their interfacial reactions during oxidation. Thus, the original unstable alpha-Al2O3/TC interface was replaced by the inactive gahnite/TC interface. Because of the extra protection of the gahnite interlayer as well as the barrier effect of the TC on oxygen permeation, the alpha-Al2O3 scale thickened very slowly, which made the composite TBC exhibit better oxidation resistance than the NiCoCrAlY coating at 1000 degrees C. (C) 2015 Elsevier B.V. All rights reserved.
部门归属	[wang, xin ; chen, minghui ; zhu, shenglong ; wang, fuhui] chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词	Glass-based Composite Tbc Pre-oxidation Oxidation Tgo Interfacial Reaction Gahnite Interlayer
资助者	National High Technology Research and Development Program of China (863 Program) [2012AA03A512]; National Key Basic Research Program of China (973 Program) [2012CB625100]
收录类别	sci
语种	英语
WOS记录号	WOS:000354149400039
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75045
专题	中国科学院金属研究所
通讯作者	wangx@alum.imr.ac.cn; slzhu@imr.ac.cn
推荐引用方式 GB/T 7714	Wang, Xin,Chen, Minghui,Zhu, Shenglong,et al. Oxidation behavior of glass-based composite thermal barrier coating on K417G superalloy with a NiCoCrAlY bond coat at 1000 degrees C[J]. SURFACE & COATINGS TECHNOLOGY,2015,270:314-323.
APA	Wang, Xin,Chen, Minghui,Zhu, Shenglong,Wang, Fuhui,wangx@alum.imr.ac.cn,&slzhu@imr.ac.cn.(2015).Oxidation behavior of glass-based composite thermal barrier coating on K417G superalloy with a NiCoCrAlY bond coat at 1000 degrees C.SURFACE & COATINGS TECHNOLOGY,270,314-323.
MLA	Wang, Xin,et al."Oxidation behavior of glass-based composite thermal barrier coating on K417G superalloy with a NiCoCrAlY bond coat at 1000 degrees C".SURFACE & COATINGS TECHNOLOGY 270(2015):314-323.