Publication Type Journal Article
Title Self-healing ceria-modified coating for corrosion protection of AZ31 magnesium alloy
Authors Lénia M. Calado Maryna G. Taryba Maria J. Carmezim Maria F. Montemor
Groups CSSE
Journal CORROSION SCIENCE
Year 2018
Month September
Volume 142
Number
Pages 12-21
Abstract A hybrid siloxane-based coating was modified with CeO2 nanoparticles and applied on AZ31. The corrosion protection performance was evaluated via Electrochemical Impedance Spectroscopy (EIS) in 0.05 M NaCl. CeO2-modified coating showed improved and more stable protective performance compared to the blank coating. Localized healing of the modified coating was studied via Scanning Vibrating Electrode Technique (SVET), Scanning Ion-Selective Electrode Technique (SIET) and Localized Electrochemical Impedance Spectroscopy (LEIS). Addition of ceria led to lower cathodic activity in 0.05 M NaCl and alkalization was kept localized. The CeO2-modified coating provided corrosion protection, including pre-emptive healing of localized corrosion activity, of AZ31.
DOI http://dx.doi.org/10.1016/j.corsci.2018.06.013
ISBN
Publisher
Book Title
ISSN 0010-938X
EISSN 1879-0496
Conference Name
Bibtex ID ISI:000444933400002
Observations
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