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Electrochemical methods study on corrosion of 5% Al-Zn alloy-coated steel under thin electrolyte layers
Xing, S.1; Li, Y.2; Wu, J.1; Yan, Y.1
2010-05-01
Source PublicationMATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
Volume61Issue:5Pages:428-431
SubtypeArticle
AbstractThe corrosion behavior of a 5% Al-Zn alloy (GF) coated steel was investigated under cyclic wet dry condition using electrochemical techniques. The wet dry cycle was conducted by exposure to alternate condition of 1 h immersion in seawater and 7 h drying at ambient temperature. The polarization resistance, R(p) of the coating was monitored during the wet dry cycles by two points AC impedance method and the corrosion potential, E(corr) was measured only when the coating was immersed in seawater. Simultaneously, the electrochemical impedance spectroscopy (EIS) of the coating was obtained after it was immersed in different cycles of wet dry condition. The results obtained by two points AC impedance method had good agreement with those achieved from EIS technique, which proved that the two points AC impedance method was correct and an effective method for atmospheric corrosion study. The monitoring results indicated that the corrosion rate of GF coating firstly increased, then decreased slowly with time, and at last reached a relative steady state with local corrosion under the cyclic wet dry alternate condition.
DOI10.1002/maco.200905313
Indexed BySCI
Language英语
WOS IDWOS:000278341800007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/32876
Collection海洋腐蚀与防护研究发展中心
Affiliation1.Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Xing, S.,Li, Y.,Wu, J.,et al. Electrochemical methods study on corrosion of 5% Al-Zn alloy-coated steel under thin electrolyte layers[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2010,61(5):428-431.
APA Xing, S.,Li, Y.,Wu, J.,&Yan, Y..(2010).Electrochemical methods study on corrosion of 5% Al-Zn alloy-coated steel under thin electrolyte layers.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,61(5),428-431.
MLA Xing, S.,et al."Electrochemical methods study on corrosion of 5% Al-Zn alloy-coated steel under thin electrolyte layers".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 61.5(2010):428-431.
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