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Electrochemical impedance study of corrosion of B-1900 alloy in the presence of a solid Na2SO4 and a liquid 25 wt.% NaCl-75 wt.% Na2SO4 film at 800 degrees C in air
Zeng, CL; Zhang, T
通讯作者Zeng, CL(clzeng@imr.ac.cn)
2004-04-15
发表期刊ELECTROCHIMICA ACTA
ISSN0013-4686
卷号49期号:9-10页码:1429-1433
摘要Electrochemical impedance spectroscopy (EIS) technique was employed to study the corrosion of B-1900 alloy at 800degreesC in air in the presence of a solid Na2SO4 and a molten 25 wt.% NaCl-75 wt.% Na2SO4 film, respectively. It was found that the Nyquist plot for the corrosion of the alloy was composed of one capacitive loop. The medium resistance decreased and then increased with experimental time in the presence of the Na2SO4 film, while the charge transfer resistance reduced with time, which indicated the change of surface deposit from a solid state to a molten state and the occurrence of fast corrosion. As compared with the solid Na2SO4 film, the presence of the molten NaCl-Na2SO4 film gives rise to smaller impedance. Impedance model was proposed to explain the corrosion behavior of the alloy. (C) 2003 Elsevier Ltd. All rights reserved.
关键词B-1900 alloy electrochemical impedance Na2SO4 film NaCl-Na2SO4 film hot corrosion
DOI10.1016/j.electacta.2003.10.029
收录类别SCI
语种英语
WOS研究方向Electrochemistry
WOS类目Electrochemistry
WOS记录号WOS:000189226300008
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/81644
通讯作者Zeng, CL
作者单位Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110015, Peoples R China
推荐引用方式
GB/T 7714
Zeng, CL,Zhang, T. Electrochemical impedance study of corrosion of B-1900 alloy in the presence of a solid Na2SO4 and a liquid 25 wt.% NaCl-75 wt.% Na2SO4 film at 800 degrees C in air[J]. ELECTROCHIMICA ACTA,2004,49(9-10):1429-1433.
APA Zeng, CL,&Zhang, T.(2004).Electrochemical impedance study of corrosion of B-1900 alloy in the presence of a solid Na2SO4 and a liquid 25 wt.% NaCl-75 wt.% Na2SO4 film at 800 degrees C in air.ELECTROCHIMICA ACTA,49(9-10),1429-1433.
MLA Zeng, CL,et al."Electrochemical impedance study of corrosion of B-1900 alloy in the presence of a solid Na2SO4 and a liquid 25 wt.% NaCl-75 wt.% Na2SO4 film at 800 degrees C in air".ELECTROCHIMICA ACTA 49.9-10(2004):1429-1433.
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