Behaviour and mechanisms of alkali-sulphate-induced hot corrosion on composite coatings at 900 degrees C

IMR OpenIR

	Behaviour and mechanisms of alkali-sulphate-induced hot corrosion on composite coatings at 900 degrees C
	J. Ma; S. M. Jiang; J. Gong; C. Sun
	2012
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	58 页码:251-259
摘要	Three coating systems (one single MCrAlY, two composite coatings with/without the Cr-rich interlayer) have been prepared by the arc ion plating (AIP) and electroplating methods. Hot corrosion of the coatings at 900 degrees C by alkali sulphates shows that a composite coating with a chromium-rich interlayer exhibits the best corrosion resistance. The MCrAlY coating was severely deteriorated in 100 h since its non-productive (Ni,Co)Al2O4 and Cr2O3 scales induce internal sulfidation and oxidation. However, the microstructural involutions seldom occur within composite coatings, especially for the one with the Cr-rich interlayer. Mechanisms of hot corrosion of the three coatings are discussed. (c) 2012 Elsevier Ltd. All rights reserved.
部门归属	[ma, jun; jiang, su meng; gong, jun; sun, chao] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, liaoning, peoples r china.;jiang, sm (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 72 wenhua rd, shenyang 110016, liaoning, peoples r china.;smjiang@imr.ac.cn
关键词	Metal Coatings Molten Salts Sem Hot Corrosion Nickel-base Alloys Oxidation Behavior Mcraly Coatings
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60152
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Ma,S. M. Jiang,J. Gong,et al. Behaviour and mechanisms of alkali-sulphate-induced hot corrosion on composite coatings at 900 degrees C[J]. Corrosion Science,2012,58:251-259.
APA	J. Ma,S. M. Jiang,J. Gong,&C. Sun.(2012).Behaviour and mechanisms of alkali-sulphate-induced hot corrosion on composite coatings at 900 degrees C.Corrosion Science,58,251-259.
MLA	J. Ma,et al."Behaviour and mechanisms of alkali-sulphate-induced hot corrosion on composite coatings at 900 degrees C".Corrosion Science 58(2012):251-259.