Impedance Spectra Characteristics of Fe-Cr Alloys in a Solid K2SO4-KCl Mixture at 600 degrees C and 650 degrees C

doi:10.20964/2018.08.03

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	Impedance Spectra Characteristics of Fe-Cr Alloys in a Solid K2SO4-KCl Mixture at 600 degrees C and 650 degrees C
	Lai, Y. B.1; Guo, P. Y.1,2; Sun, H.1; Shao, Y.1; Wang, Y. X.1; Qiao, Y. X.1; Zeng, C. L.2
刊名	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
	2018-08-01
卷号	13 期号:8 页码:7827-7845
关键词	Electrochemical impedance Fe-Cr solid salt two-electrode system
ISSN号	1452-3981
DOI	10.20964/2018.08.03
通讯作者	Guo, P. Y.(pyguo@just.edu.cn)
英文摘要	The low temperature hot corrosion characteristics of Fe-10Cr and Fe-20Cr alloys is studied in solid 0.5K(2)SO(4)-0.5KCl mixture in air at 600 degrees C and 650 degrees C. A two-electrode system is arranged for electrochemical measurement, which has been proved effective in the study of solid-and molten-salt corrosion. EIS analysis discloses corrosion of Fe-Cr alloys goes through several different reaction stages during extended exposure, such as incubation, acceleration and catastrophic period. Additionally, all these stages are fitted by corresponding equivalent circuits and electrochemical elements, and simulation data of these models generally fits experimental data well. Different Cr content in Fe-based alloys has been investigated involving the active/oxidation process of metal Cr in solid 0.5K(2)SO(4)-0.5KCl mixture. Corrosion products in above-mentioned different stages are analyzed by scanning electron microscopy. The formation and depletion of protective scale in mixed salt is monitored. Corrosion rate and corrosion mechanism of Fe-10Cr and Fe-20Cr alloys are discussed, too.
资助项目	National Natural Science Foundation of China[51201073] ; China Scholarship Fund ; Jiangsu University of Science and Technology[1624821607-5] ; Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYCX17_1830]
WOS研究方向	Electrochemistry
语种	英语
出版者	ESG
WOS记录号	WOS:000441821400048
资助机构	National Natural Science Foundation of China ; China Scholarship Fund ; Jiangsu University of Science and Technology ; Postgraduate Research & Practice Innovation Program of Jiangsu Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/129192]
专题	金属研究所_中国科学院金属研究所
通讯作者	Guo, P. Y.
作者单位	1.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Lai, Y. B.,Guo, P. Y.,Sun, H.,et al. Impedance Spectra Characteristics of Fe-Cr Alloys in a Solid K2SO4-KCl Mixture at 600 degrees C and 650 degrees C[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2018,13(8):7827-7845.
APA	Lai, Y. B..,Guo, P. Y..,Sun, H..,Shao, Y..,Wang, Y. X..,...&Zeng, C. L..(2018).Impedance Spectra Characteristics of Fe-Cr Alloys in a Solid K2SO4-KCl Mixture at 600 degrees C and 650 degrees C.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,13(8),7827-7845.
MLA	Lai, Y. B.,et al."Impedance Spectra Characteristics of Fe-Cr Alloys in a Solid K2SO4-KCl Mixture at 600 degrees C and 650 degrees C".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 13.8(2018):7827-7845.