An aes and sims study of the influence of chloride on the passive oxide film on iron

The kinetics of passivation of Fe in pH 8.4 borate buffer solution at 0.0 V have been studied in both the presence and absence of 0.5 M Cl −. Cl − has no influence on the decay of the passive current with time over the course of several hours. Oxide films were examined by AES and SIMS for possible C...

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Bibliographic Details
Published in:Electrochimica acta 1986-10, Vol.31 (10), p.1299-1303
Main Authors: Goetz, R., MacDougall, B., Graham, M.J.
Format: Article
Language:English
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Summary:The kinetics of passivation of Fe in pH 8.4 borate buffer solution at 0.0 V have been studied in both the presence and absence of 0.5 M Cl −. Cl − has no influence on the decay of the passive current with time over the course of several hours. Oxide films were examined by AES and SIMS for possible Cl − incorporation into the oxide lattice. Neither technique was able to detect any Cl − incorporation into the oxide film is not a precursor to pit initiation. It also appears that Cl − does not cause any film thinning.
ISSN:0013-4686
1873-3859
DOI:10.1016/0013-4686(86)80151-7