Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.corsci.2019.108296
Title: Moving boundary simulation and mechanistic studies of the electrochemical corrosion protection by a damaged zinc coating
Authors: SAEEDIKHANIGERAEI, MOHSEN
T. L. SUDESH L. WIJESINGHE 
BLACKWOOD, DANIEL J 
Keywords: Corrosion modeling
Sacrificial protection
Barrier protection
Zinc
Moving boundary simulation
Issue Date: 23-Oct-2019
Publisher: Elsevier
Citation: SAEEDIKHANIGERAEI, MOHSEN, T. L. SUDESH L. WIJESINGHE, BLACKWOOD, DANIEL J (2019-10-23). Moving boundary simulation and mechanistic studies of the electrochemical corrosion protection by a damaged zinc coating. Corrosion Science 163. ScholarBank@NUS Repository. https://doi.org/10.1016/j.corsci.2019.108296
Abstract: The mechanism of corrosion protection of steel substrate by a 96 wt% zinc primer that was damaged by scratch was simulated. The primer was approximated to pure zinc layer due to high percentage of zinc. Results show that while the middle of scratch is protected by sacrificial protection, at the corners of scratch a local cathodic inhibition results in barrier protection due to variations in the dissolved oxygen concentration. Moving boundary simulation allowed to predict the changes to the geometry of the corroding electrodes. Finally, taking into account zinc electrodes consumption, the period of sacrificial protection was predicted by simulations.
Source Title: Corrosion Science
URI: https://scholarbank.nus.edu.sg/handle/10635/167892
ISSN: 0010938X
DOI: 10.1016/j.corsci.2019.108296
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