Pardo Gutiérrez Del Cid, ÁngelMerino Casals, María ConcepciónCasajus, P.Mohedano Sánchez, MartaArrabal Durán, RaúlMatykina, Endzhe2024-08-272024-08-272009-12-17Pardo, A., Merino, M.C., Casajús, P., Mohedano, M., Arrabal, R. and Matykina, E. (2009), Corrosion behaviour of Mg–Al alloys with Al–11Si thermal spray coatings. Materials and Corrosion, 60: 939-948. https://doi.org/10.1002/maco.2009053480947-51171521-417610.1002/maco.200905348https://hdl.handle.net/20.500.14352/107714The corrosion resistance of AZ31, AZ80 and AZ91D Mg–Al alloys with Al–11Sithermal spray coatings was evaluated by electrochemical and gravimetricmeasurements in 3.5 wt% NaCl solution. The changes in the morphology andcorrosion behaviour of the Al–11Si coatings induced by a cold-pressingpost-treatment under 32 MPa were also examined. The as-sprayed Al–11Sicoatings revealed high degree of porosity and poor corrosion protection, whichresulted in galvanic acceleration of the corrosion of the magnesium substrates.The application of a cold-pressing post-treatment produced more compactAl–11Si coatings with better bonding at the substrate/coating interface andslightly higher corrosion resistance. However, interconnected pores remained inthe cold-pressed coatings due to the low plasticity of the Al–11Si powder andgalvanic corrosion of the substrate was observed after immersion in 3.5 wt%NaCl for 10 daysengAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/journal articleopen access66Materiales3312 Tecnología de Materiales3303 Ingeniería y Tecnología Químicas