RT Journal Article
T1 Assessment of duplex coating combining plasma electrolytic oxidation and polymer layer on AZ31 magnesium alloy
A1 Arrabal Durán, Raúl
A1 J.M. Mota, 
A1 Criado Portal, Antonio José
A1 Pardo Gutiérrez Del Cid, Ángel
A1 Mohedano Sánchez, Marta
AB Mechanical and corrosion tests were performed on a polymer-coated AZ31 magnesium alloy pre-treated by plasma electrolytic oxidation (PEO). Results were compared with a fluorotitanate–zirconate conversion coatingpre-treatment. Mechanical performance was assessed by standardized adhesion (ISO 2409:2007), impact (ISO 6272‐1:2004) and impact+ adhesion (ISO 6272/ASTMD2794) pass/fail tests. Corrosion behavior was monitored using electrochemical impedance spectroscopy (EIS), ac/dc/ac measurements and continuous exposure to salt fog per ASTM B117 and cyclic exposure per VDA 621‐415 (VDA). The PEO+polymer coating revealed lower impact resistance but better corrosion resistance than the Ti/Zr+polymer coating. The ac/dc/ac procedure demonstrated to be faster than EIS measurements for evaluation of the corrosion performance of studied coatings.
PB Elsevier
YR 2012
FD 2012
LK https://hdl.handle.net/20.500.14352/130546
UL https://hdl.handle.net/20.500.14352/130546
LA eng
NO DECOTEC S.L.
DS Docta Complutense
RD 20 mar 2026