TEM study of the evolution of sputtered Ni plus CrAlYSiHfN nanocomposite coating with an AlN diffusion barrier at high temperature

IMR OpenIR

	TEM study of the evolution of sputtered Ni plus CrAlYSiHfN nanocomposite coating with an AlN diffusion barrier at high temperature
	Ren, Pan; Zhu, Shenglong; Wang, Fuhui; pren11s@imr.ac.cn
	2016
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	286 页码:262-267
摘要	MCrAlY (M denotes Ni and/or Co) coatings are widely used on the turbine blades to protect the aeroengine at high temperature. However, the interdiffusion between coating/substrate and the coefficient of thermal expansion (CTE) mismatch between protective oxides layer/coating are the main factors that limit the service lifetime of MCrAlY coatings. In this work, a Ni+CrAlYSiHfN/AlN nanocomposite duplex coating system was designed to improve the weakness of conventional MCrAlY coatings. The nanocomposite coating system exhibited a low oxidation rate in the 1000 degrees C isothermal oxidation test and the oxidation rate constant of the coating system was 633 * 10(-13) g(2) cm(-4) s(-1) at the first 20 h, and then the TGO grew at a low constant of 1.49 * 10(-13) g(2) cm(-4) s(-1) until 200 h. Besides, the AlN diffusion barrier effectively inhibited the interdiffusion between coating/substrate. The evolution of coating microstructures and thermal growth oxides (TGO) at high temperature were studied with the aid of transmission electron microscopy. (C) 2015 Elsevier B.V. All rights reserved.
部门归属	[ren, pan ; zhu, shenglong ; wang, fuhui] chinese acad sci, inst met res, dept high temp corros & protect, shenyang 110016, peoples r china
关键词	Oxidation High Temperature Tem Nanocomposite Coating
资助者	National Key Basic Research Program of China (973 Program) [2012CB625100]; National Nature Science Foundation of China [51231001]
收录类别	sci
语种	英语
WOS记录号	WOS:000368965300033
引用统计	被引频次：15[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/321006/75179
专题	中国科学院金属研究所
通讯作者	pren11s@imr.ac.cn
推荐引用方式 GB/T 7714	Ren, Pan,Zhu, Shenglong,Wang, Fuhui,et al. TEM study of the evolution of sputtered Ni plus CrAlYSiHfN nanocomposite coating with an AlN diffusion barrier at high temperature[J]. SURFACE & COATINGS TECHNOLOGY,2016,286:262-267.
APA	Ren, Pan,Zhu, Shenglong,Wang, Fuhui,&pren11s@imr.ac.cn.(2016).TEM study of the evolution of sputtered Ni plus CrAlYSiHfN nanocomposite coating with an AlN diffusion barrier at high temperature.SURFACE & COATINGS TECHNOLOGY,286,262-267.
MLA	Ren, Pan,et al."TEM study of the evolution of sputtered Ni plus CrAlYSiHfN nanocomposite coating with an AlN diffusion barrier at high temperature".SURFACE & COATINGS TECHNOLOGY 286(2016):262-267.