Electrochemical-Impedance-Spectroscopy (EIS) Study of Corrosion of Steels 12CrMoV and SS304 Beneath a Molten ZnCl2-KCl Film at 400 A degrees C in Air

doi:10.1007/s11085-009-9154-1

IMR OpenIR

	Electrochemical-Impedance-Spectroscopy (EIS) Study of Corrosion of Steels 12CrMoV and SS304 Beneath a Molten ZnCl2-KCl Film at 400 A degrees C in Air
	Pan, T. J.1,2; Lu, W. M.1; Ren, Y. J.1; Wu, W. T.1; Zeng, C. L.1
通讯作者	Zeng, C. L.(clzeng@imr.ac.cn)
	2009-10-01
发表期刊	OXIDATION OF METALS
ISSN	0030-770X
卷号	72 期号:3-4 页码:179-190
摘要	The corrosion resistance of 12CrMoV and SS304 steels in contact with a molten mixture of (55-45) mol.% ZnCl2-KCl, similar to that found in waste-incineration plants, has been examined in air at 400 A degrees C by the electrochemical-impedance-spectroscopy (EIS) technique. The initial Nyquist plots of 12CrMoV showed a semicircle at high frequency and a line at low frequency indicating a diffusion-controlled reaction. At a later stage, the Nyquist plots are composed of a small semi-circle at high frequency, a line at medium frequency and a large semi-circle at low frequency, similar to that shown by SS304 during the whole experimental test. The larger impedance of SS304 as compared to 12CrMoV may be attributed to the presence of Ni and to the higher Cr content of SS304. Equivalent circuits representing the features of the corrosion of 12CrMoV and SS304 are proposed to fit the corresponding impedance spectra, and the electrochemical parameters in the equivalent circuits are calculated.
关键词	SS304 12CrMoV ZnCl2-KCl Hot corrosion Impedance models
资助者	National Natural Scientific Foundation of China (NSFC)
DOI	10.1007/s11085-009-9154-1
收录类别	SCI
语种	英语
资助项目	National Natural Scientific Foundation of China (NSFC)[50671114]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000269059600004
出版者	SPRINGER/PLENUM PUBLISHERS
引用统计	被引频次：14[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/321006/99582
专题	中国科学院金属研究所
通讯作者	Zeng, C. L.
作者单位	1.Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China 2.Jiangsu Polytech Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China
推荐引用方式 GB/T 7714	Pan, T. J.,Lu, W. M.,Ren, Y. J.,et al. Electrochemical-Impedance-Spectroscopy (EIS) Study of Corrosion of Steels 12CrMoV and SS304 Beneath a Molten ZnCl2-KCl Film at 400 A degrees C in Air[J]. OXIDATION OF METALS,2009,72(3-4):179-190.
APA	Pan, T. J.,Lu, W. M.,Ren, Y. J.,Wu, W. T.,&Zeng, C. L..(2009).Electrochemical-Impedance-Spectroscopy (EIS) Study of Corrosion of Steels 12CrMoV and SS304 Beneath a Molten ZnCl2-KCl Film at 400 A degrees C in Air.OXIDATION OF METALS,72(3-4),179-190.
MLA	Pan, T. J.,et al."Electrochemical-Impedance-Spectroscopy (EIS) Study of Corrosion of Steels 12CrMoV and SS304 Beneath a Molten ZnCl2-KCl Film at 400 A degrees C in Air".OXIDATION OF METALS 72.3-4(2009):179-190.