OXIDIZING-SULFIDIZING CORROSION OF Ni-xCr-10Al ALLOYS AT 700-800 degrees C

doi:10.3724/SP.11037.2011.00145

IMR OpenIR

	OXIDIZING-SULFIDIZING CORROSION OF Ni-xCr-10Al ALLOYS AT 700-800 degrees C
	Lu Lanying 1; Pan Taijun 2; Niu Yan 1
通讯作者	Niu Yan(yniu@imr.ac.cn)
	2011-08-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	47 期号:8 页码:1026-1031
摘要	The corrosion behavior of Ni-10Al and Ni-xCr-10Al (x=3, 5, 10) alloys at 700-800 degrees C in H(2)-H(2)S-CO(2) mixtures was studied. The addition of Cr resulted in a significant reduction of the corrosion rate of the Ni-10Al alloy: at 700 degrees C the corrosion of Ni-10Al alloy showed a linear kinetic law, but Ni-xCr-10Al followed the multi-stage parabolic rate law; at 800 degrees C the corrosion of all the alloys followed a quasi-parabolic rate law. Ni-10Al alloy formed a complex scale of Ni(3)S(2) and Al(2)O(3), whereas Ni-3Cr-10Al formed an irregular scale of Al(2)O(3) with a CrS inner corrosion region, and a thin layer of Al(2)O(3) formed on Ni-5Cr-10Al and Ni-10Cr-10Al alloys. The equilibrium partial pressures of oxygen and sulfur in the mixed gases were calculated to estimate the possible reactions between the alloy components and the gaseous atmosphere, and the corrosion mechanisms were also discussed.
关键词	Ni-Cr-Al alloy oxidation sulfidation Cr
资助者	National Natural Science Foundation of China
DOI	10.3724/SP.11037.2011.00145
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50971129]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000295420400010
出版者	SCIENCE PRESS
引用统计	被引频次：2[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/321006/104198
专题	中国科学院金属研究所
通讯作者	Niu Yan
作者单位	1.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China 2.Changzhou Univ, Dept Mat Sci & Engn, Changzhou 213164, Peoples R China
推荐引用方式 GB/T 7714	Lu Lanying,Pan Taijun,Niu Yan. OXIDIZING-SULFIDIZING CORROSION OF Ni-xCr-10Al ALLOYS AT 700-800 degrees C[J]. ACTA METALLURGICA SINICA,2011,47(8):1026-1031.
APA	Lu Lanying,Pan Taijun,&Niu Yan.(2011).OXIDIZING-SULFIDIZING CORROSION OF Ni-xCr-10Al ALLOYS AT 700-800 degrees C.ACTA METALLURGICA SINICA,47(8),1026-1031.
MLA	Lu Lanying,et al."OXIDIZING-SULFIDIZING CORROSION OF Ni-xCr-10Al ALLOYS AT 700-800 degrees C".ACTA METALLURGICA SINICA 47.8(2011):1026-1031.