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Growth of anodic films on iron and stainless steel in the presence of some organic inhibitors
Author(s) -
Spinelli P.,
Fratesi R.,
Roventi G.
Publication year - 1983
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19830340403
Subject(s) - benzotriazole , hexamethylenetetramine , materials science , anode , adsorption , oxide , benzylamine , inorganic chemistry , metallurgy , iron oxide , electrode , chemistry , organic chemistry
Ellipsometry has been used to study the influence of Benzylamine, Benzotriazole and Hexamethylenetetramine on the growth of anodic oxides on iron and on AISI 304 stainless steel in borate‐buffer solutions. On iron, a limitation of the growth‐rate has been observed for these substances all over the passive potential range. On AISI 304 steel, when the electrode potential exceeds 400 mV (SCE), an increase of the anodic oxide growth‐rate was found in the presence of the organic substances. Adsorption on the oxide film, according to the interpretation given by Pearson, is discussed.