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Effect of Cl − ‐ions on the passive film on iron
Author(s) -
JanikCzachor M.,
Kaszczyszyn S.
Publication year - 1982
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.19820330905
Subject(s) - auger electron spectroscopy , chloride , coulometry , bromide , ion , halide , inorganic chemistry , chemistry , boron , electron spectroscopy , materials science , spectroscopy , metallurgy , electrode , electrochemistry , organic chemistry , physics , nuclear physics , quantum mechanics
Effect of chlorides on the passive film formed on iron in borate buffer has been investigated by Auger Electron Spectroscopy (AES) and coulometric methods. AES measurements have not given any evidence for chloride entry into the film. Amount of charges necessary to cathodically reduce the film tended to diminish after exposure to chloride or bromide containing solutions. The results suggest a thinning of the passivating film on iron by halides with subsequent pitting.