Pardo Gutiérrez Del Cid, ÁngelMerino Casals, María ConcepciónMohedano Sánchez, MartaCasajús, P.Coy, A. E.Arrabal Durán, Raúl2024-07-302024-07-302009-11-03A. Pardo, M.C. Merino, M. Mohedano, P. Casajús, A.E. Coy, R. Arrabal, Corrosion behaviour of Mg/Al alloys with composite coatings, Surface and Coatings Technology, Volume 203, Issue 9, 2009, Pages 1252-1263, ISSN 0257-8972, https://doi.org/10.1016/j.surfcoat.2008.10.030.10.1016/j.surfcoat.2008.10.030https://hdl.handle.net/20.500.14352/107209The corrosion behaviour of aluminium/silicon carbide (Al/SiC) composite coatings deposited by thermal spray on AZ31, AZ80 and AZ91D magnesium-aluminium alloys was investigated by electrochemical and gravimetric measurements in 3.5 wt.% NaCl solution at 22 °C. Corrosion products were examined by scanning electron microscopy (SEM), energy dispersive X-ray (EDX) analysis and low-angle X-ray diffraction (XRD). Al/SiC composite coatings in the as-sprayed state revealed high level of porosity with poor bonding at the Al/SiC and coating/substrate interfaces, which facilitated degradation of the magnesium substrates by a mechanism of galvanic corrosion. Cold-pressing post-treatment produced more compact coatings with improved corrosion performance in 3.5 wt.% NaCl compared with as-sprayed coatings.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/journal articlehttps://doi.org/10.1016/j.surfcoat.2008.10.030https://www.sciencedirect.com/science/article/pii/S0257897208010062open access66620.1Magnesium alloysAl/SiC coatingsCorrosionCompositesThermal sprayingQuímicaMateriales3303 Ingeniería y Tecnología Químicas3312 Tecnología de Materiales