Hot corrosion behaviour of a cobalt-base super-alloy K40S with and without NiCrAlYSi coating

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	Hot corrosion behaviour of a cobalt-base super-alloy K40S with and without NiCrAlYSi coating; Hot corrosion behaviour of a cobalt-base super-alloy K40S with and without NiCrAlYSi coating
	K. Zhang; M. M. Liu; S. L. Liu; C. Sun; F. H. Wang
	2011 ; 2011
发表期刊	Corrosion Science ; Corrosion Science
ISSN	0010-938X ; 0010-938X
卷号	53 期号:5 页码:1990-1998
摘要	A NiCrAlYSi coating was deposited by arc ion plating on a cobalt-base super-alloy K40S to improve its hot corrosion resistance at 1173 K in air. The K40S suffered from accelerated corrosion and formed non-protective scale with poor adherence when its surface was beneath Na(2)SO(4) and Na(2)SO(4) containing 25 wt.% NaCl salt deposits. After the K40S was coated with NiCrAlYSi coating, a protective alpha-Al(2)O(3) scale was formed on the coating. Although the NiCrAlYSi coating changed into NiCoCrAlYSi during corrosion processes, it still possessed good corrosion resistance. In addition, the corrosion mechanisms were discussed on a basis of basic fluxing model. (C) 2011 Elsevier Ltd. All rights reserved.; A NiCrAlYSi coating was deposited by arc ion plating on a cobalt-base super-alloy K40S to improve its hot corrosion resistance at 1173 K in air. The K40S suffered from accelerated corrosion and formed non-protective scale with poor adherence when its surface was beneath Na(2)SO(4) and Na(2)SO(4) containing 25 wt.% NaCl salt deposits. After the K40S was coated with NiCrAlYSi coating, a protective alpha-Al(2)O(3) scale was formed on the coating. Although the NiCrAlYSi coating changed into NiCoCrAlYSi during corrosion processes, it still possessed good corrosion resistance. In addition, the corrosion mechanisms were discussed on a basis of basic fluxing model. (C) 2011 Elsevier Ltd. All rights reserved.
部门归属	[zhang, k.; liu, m. m.; liu, s. l.] shenyang normal univ, chem & life coll, shenyang 110034, peoples r china. [zhang, k.; sun, c.; wang, f. h.] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china.;zhang, k (reprint author), shenyang normal univ, chem & life coll, 253 huanghe st, shenyang 110034, peoples r china;zhangke@synu.edu.cn ; [zhang, k.; liu, m. m.; liu, s. l.] shenyang normal univ, chem & life coll, shenyang 110034, peoples r china. [zhang, k.; sun, c.; wang, f. h.] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china.;zhang, k (reprint author), shenyang normal univ, chem & life coll, 253 huanghe st, shenyang 110034, peoples r china;zhangke@synu.edu.cn
关键词	Cobalt Cobalt Super-alloys Super-alloys Metal Coatings Metal Coatings Epma Epma Hot Corrosion Hot Corrosion Temperature Oxidation Behavior Temperature Oxidation Behavior Aluminide Coatings Aluminide Coatings Cyclic Oxidation Cyclic Oxidation Sprayed Coatings Sprayed Coatings Microstructure Microstructure Superalloys Superalloys Resistance Resistance Yttrium Yttrium
URL	查看原文 ; 查看原文
WOS记录号	WOS:000289866400043 ; WOS:000289866400043
引用统计	被引频次：64[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/321006/30889
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. Zhang,M. M. Liu,S. L. Liu,et al. Hot corrosion behaviour of a cobalt-base super-alloy K40S with and without NiCrAlYSi coating, Hot corrosion behaviour of a cobalt-base super-alloy K40S with and without NiCrAlYSi coating[J]. Corrosion Science, Corrosion Science,2011, 2011,53, 53(5):1990-1998, 1990-1998.
APA	K. Zhang,M. M. Liu,S. L. Liu,C. Sun,&F. H. Wang.(2011).Hot corrosion behaviour of a cobalt-base super-alloy K40S with and without NiCrAlYSi coating.Corrosion Science,53(5),1990-1998.
MLA	K. Zhang,et al."Hot corrosion behaviour of a cobalt-base super-alloy K40S with and without NiCrAlYSi coating".Corrosion Science 53.5(2011):1990-1998.