RT Journal Article
T1 Corrosion behaviour of Mg/Al alloys with composite coatings
A1 Pardo Gutiérrez Del Cid, Ángel
A1 Merino Casals, María Concepción
A1 Mohedano Sánchez, Marta
A1 Casajús, P.
A1 Coy, A. E.
A1 Arrabal Durán, Raúl
AB The 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.
PB Elsevier
YR 2009
FD 2009-11-03
LK https://hdl.handle.net/20.500.14352/107209
UL https://hdl.handle.net/20.500.14352/107209
LA eng
NO A. 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.
DS Docta Complutense
RD 7 jun 2025