Preparation and hot corrosion behaviour of an Al-gradient NiCoCrAlYSiB coating on a Ni-base superalloy

CORC > 金属研究所 > 中国科学院金属研究所

	Preparation and hot corrosion behaviour of an Al-gradient NiCoCrAlYSiB coating on a Ni-base superalloy
	Z. B. Bao ; Q. M. Wang ; W. Z. Li ; X. Liu ; J. Gong ; T. Y. Xiong ; C. Sun
刊名	Corrosion Science
	2009
卷号	51 期号:4 页码:860-867
关键词	Metal coatings Gaseous phase aluminisation Hot corrosion Grain growth gas-turbine components oxidation chloride alloy
ISSN号	0010-938X
中文摘要	A gradient NiCoCrAlYSiB coating was prepared on a Ni-base superalloy using arc ion plating (AIP) and subsequent gaseous phase aluminisation techniques. Hot corrosion of normal NiCoCrAlYSiB and the gradient coating in pure Na(2)SO(4) and Na(2)SO(4)/NaCl (75:25, wt./wt.) salts was performed at 900 degrees C in static air. The corrosion results indicated an enhanced corrosion resistance to both salts for the gradient NiCoCrAlYSiB coating, which the improved performance of it should be attributed to the beta aluminide "pool" at the surface layer. By partially sacrificing Al(2)O(3) (i.e. Al), the gradient NiCoCrAlYSiB coating specimen behaved excellently in the two kinds of salts. The grain growth during the gaseous phase aluminisation and the corrosion mechanism, including the role NaCl played in the mixture salt corrosion, are discussed. (C) 2009 Elsevier Ltd. All rights reserved.
原文出处	://WOS:000265472500021
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31814]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. B. Bao,Q. M. Wang,W. Z. Li,et al. Preparation and hot corrosion behaviour of an Al-gradient NiCoCrAlYSiB coating on a Ni-base superalloy[J]. Corrosion Science,2009,51(4):860-867.
APA	Z. B. Bao.,Q. M. Wang.,W. Z. Li.,X. Liu.,J. Gong.,...&C. Sun.(2009).Preparation and hot corrosion behaviour of an Al-gradient NiCoCrAlYSiB coating on a Ni-base superalloy.Corrosion Science,51(4),860-867.
MLA	Z. B. Bao,et al."Preparation and hot corrosion behaviour of an Al-gradient NiCoCrAlYSiB coating on a Ni-base superalloy".Corrosion Science 51.4(2009):860-867.