RT Journal Article
T1 Cerium-based sealing of PEO coated AM50 magnesium alloy
A1 Mohedano Sánchez, Marta
A1 C. Blawert, 
A1 M.L. Zheludkevich, 
AB Environmentally friendly Ce-based sealing post-treatments were developed for PEO coatings on AM50 magnesium alloy. The influence of the Ce(NO3)3 concentration in the Ce bath and the time of the sealing process were evaluated in terms of morphological and structural properties using SEM, EDS and XRD. Ce content in the layer increased with both the amount of salt in the solution and the time of the sealing post-treatment process due to a higher Ce product accumulation into the pores and cracks of the coatings. Sealed PEO coatings revealed an improvement in the corrosion protection properties as measured by electrochemical impedance spectroscopy. Differences in the corrosion resistance values for the sealed coatings indicate a strong relation between the parameters of the sealing process and its effectiveness, showing higher resistance for the sealed PEO coating developed after 3 h of immersion in 10 g/l Ce(NO3)3 sealing bath.
PB Elsevier
YR 2015
FD 2015
LK https://hdl.handle.net/20.500.14352/124141
UL https://hdl.handle.net/20.500.14352/124141
LA eng
NO M. Mohedano, C. Blawert, M.L. Zheludkevich, Cerium-based sealing of PEO coated AM50 magnesium alloy, Surface and Coatings Technology, Volume 269, 2015, Pages 145-154, ISSN 0257-8972, https://doi.org/10.1016/j.surfcoat.2015.01.003.
NO Alexander von Humboldt Foundation
DS Docta Complutense
RD 25 ene 2026