Spontaneous reaction formation of Cr23C6 diffusion barrier layer between nanocrystalline MCrAlY coating and Ni-base superalloy at high temperature

IMR OpenIR

	Spontaneous reaction formation of Cr23C6 diffusion barrier layer between nanocrystalline MCrAlY coating and Ni-base superalloy at high temperature
	Ren, Pan; Zhu, Shenglong; Wang, Fuhui; slzhu@imr.ac.cn
	2015
发表期刊	CORROSION SCIENCE
ISSN	0010-938X
卷号	99 页码:219-226
摘要	A nanocrystalline NiCrAlYHfSi coating was prepared by magnetron sputtering. The coating after post-annealing comprised matrix gamma'-Ni3Al and alpha-Cr precipitates. No coating spallation was observed after 100 cycles of 1000-25 degrees C water-quenching test. A continuous Cr23C6 interlayer between the coating and the substrate was spontaneously formed during high temperature exposure, and exhibited good performance in suppressing the coating/substrate interdiffusion. The alpha-Cr precipitates in the coating disappeared gradually as Cr in the coating was consumed to form the Cr23C6 interlayer. Its growth rates can be fitted into a law controlled by two completing processes: a parabolic growth and a linear decomposition. (C) 2015 Elsevier Ltd. 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	Metal Coatings Superalloys Oxidation
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
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75129
专题	中国科学院金属研究所
通讯作者	slzhu@imr.ac.cn
推荐引用方式 GB/T 7714	Ren, Pan,Zhu, Shenglong,Wang, Fuhui,et al. Spontaneous reaction formation of Cr23C6 diffusion barrier layer between nanocrystalline MCrAlY coating and Ni-base superalloy at high temperature[J]. CORROSION SCIENCE,2015,99:219-226.
APA	Ren, Pan,Zhu, Shenglong,Wang, Fuhui,&slzhu@imr.ac.cn.(2015).Spontaneous reaction formation of Cr23C6 diffusion barrier layer between nanocrystalline MCrAlY coating and Ni-base superalloy at high temperature.CORROSION SCIENCE,99,219-226.
MLA	Ren, Pan,et al."Spontaneous reaction formation of Cr23C6 diffusion barrier layer between nanocrystalline MCrAlY coating and Ni-base superalloy at high temperature".CORROSION SCIENCE 99(2015):219-226.