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Title

An electrochemical impedance study of the behaviour of some pretreatments applied to rusted steel surfaces

AuthorsFeliú Batlle, Sebastián; Galván Sierra, Juan Carlos; Feliú Jr., S.; Bastidas Rull, José María; Simancas Peco, Joaquín; Morcillo, Manuel; Almeida, E.
Issue Date1993
PublisherElsevier
CitationCorrosion Science 35: 1351-1358 (1993)
AbstractThe electrochemical impedance technique was applied to study the corrosive and electrochemical activity at the metal/rust interface in connection with the application of protective treatments to rusted steel. The pretreatments assayed were tannic or gallic acid solutions of different concentrations. The impedance diagrams of the treated samples with these solutions were only slightly modified with reference to those obtained with untreated rusted steel. The shape of the low-frequency arcs or tails in the Nyquist diagrams seems to be markedly influenced by diffusion processes in the rust layer and/or by the porous nature of the rusted steel electrode. © 1993.
URIhttp://hdl.handle.net/10261/76162
DOI10.1016/0010-938X(93)90357-M
Identifiersdoi: 10.1016/0010-938X(93)90357-M
issn: 0010-938X
Appears in Collections:(CENIM) Artículos
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