Study of zinc passivation in chromium(VI)-containing electrolytes with short-term impedance measurements

Mertens, S.F.L. and Temmerman, E. (2001) Study of zinc passivation in chromium(VI)-containing electrolytes with short-term impedance measurements. Corrosion Science, 43 (2). pp. 301-316. ISSN 0010-938X

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Abstract

The development of a passivating layer on zinc in an acidic chromium(VI)-containing solution is studied by measuring electrical impedance. After examining the passivated electrode in its stationary state, a method is derived to study the pre-stationary state (having, by definition, time-dependent properties). Three hypotheses concerning the layer development are introduced, and their possible relevance is examined by comparison with experimental proof or known literature data. With one of these hypotheses, accordance with all available data is obtained, thus identifying this model as possibly valid. Based upon this model, some further growth characteristics of the passivating layer are derived.

Item Type:
Journal Article
Journal or Publication Title:
Corrosion Science
Subjects:
?? chromiumcorrosion inhibitorselectric impedance measurementelectrochemical electrodeselectrolytesmathematical modelspassivationpassivating layer developmentzincchromiumcoatingpassivationzinc ??
ID Code:
133008
Deposited By:
Deposited On:
22 Apr 2019 10:55
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 19:19