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Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions
Zheng, Yugui; Luo, Suzhen; Ke, Wei
Corresponding AuthorZheng, Yugui(ygzheng@imr.ac.cn)
2007-05-10
Source PublicationWEAR
ISSN0043-1648
Volume262Issue:11-12Pages:1308-1314
AbstractThe effect of cavitation on free corrosion potential, potentiodynamic polarization curves for 20SiMn low alloy steel and 0Crl3Ni5Mo and CrMnN stainless steels in HCl, NaCl, NaCl + Na2NO2 solutions, was investigated. Cavitation was produced by using a magnetostrictive-driven apparatus. Experimental results showed that the effect of cavitation on cathodic and anodic reactions was much different in given media. Cavitation shifts the free corrosion potential in cathodic direction, and mainly affects the anodic process, i.e. increases anodic current densities by two or three orders of magnitude for self-passivating systems. Cavitation shifts the free corrosion potential in noble direction and mainly affects the cathodic process, i.e. increases cathodic current densities for non-passivating systems. These results show a higher dependence on passivity of materials in given environments. The above phenomena were explained by the ideal polarization curves. (C) 2007 Elsevier B.V. All rights reserved.
Keywordcavitation corrosion passivity free corrosion potential polarization curves
DOI10.1016/j.wear.2007.01.006
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000246732800004
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/91708
Collection中国科学院金属研究所
Corresponding AuthorZheng, Yugui
AffiliationChinese Acad Sci, Met Res Inst, Environm Corros Ctr, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Yugui,Luo, Suzhen,Ke, Wei. Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions[J]. WEAR,2007,262(11-12):1308-1314.
APA Zheng, Yugui,Luo, Suzhen,&Ke, Wei.(2007).Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions.WEAR,262(11-12),1308-1314.
MLA Zheng, Yugui,et al."Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions".WEAR 262.11-12(2007):1308-1314.
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