RT Journal Article
T1 Effect of cerium (IV) on thin sulfuric acid anodizing of 2024-T3 alloy
A1 Olmo, R. del
A1 Mohedano Sánchez, Marta
A1 Visser, P.
A1 Rodríguez Rodríguez, Araceli
A1 Matykina, E.
A1 Arrabal Durán, Raúl
AB Chromic acid anodizing (CAA) is still being used today for corrosion protection of fatigue-critical components in the aeronautic industry due to the lack of feasible alternatives. Ce-containing sulfuric acid anodizing (SAA) has been identified as a promising strategy for the development of alternatives to toxic CAA. This work explores thin sulfuric acid anodizing (TSAA) focusing on the following effects: (i) current density and voltage values; (ii) concentration of Ce(IV). Screening of the optimum combination in search of minimum thickness and the best corrosion resistance was performed using electrochemical impedance spectroscopy (EIS). Two Ce-containing anodic films were selected and further investigated in comparison with the inhibitor-free film in terms of morphology (FEG-SEM, TEM), composition (RBS), corrosion resistance (EIS, NSST), high-cycle fatigue and paint adhesion. The results indicate that the path to approach the CAA performance lies through thin (<1 μm) SAA-Ce films formed at low current density.
PB Elsevier Science BV
SN 2238-7854
YR 2021
FD 2021-10-07
LK https://hdl.handle.net/20.500.14352/4679
UL https://hdl.handle.net/20.500.14352/4679
LA eng
NO CRUE-CSIC (Acuerdos Transformativos 2021)
NO Unión Europea. Horizonte 2020
NO Ministerio de Ciencia e Innovación (MICINN)/FEDER
NO Comunidad de Madrid/ FEDER
NO Ministerio de Ciencia e Innovación (MICINN)
DS Docta Complutense
RD 1 sept 2024