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Oxidative post-treatments for enhanced corrosion resistance of aluminium electrodeposited from ionic liquids
Authors:Stefano Caporali  Alessio Fossati  Ugo Bardi
Affiliation:Dipartimento di Chimica, Università di Firenze, Via della Lastruccia, 3, 50019 Sesto Fiorentino (FI), Italy Consorzio Interuniversitario Nazionale di Scienza e Tecnologia dei Materiali (INSTM), 50147 Firenze, Italy
Abstract:In this paper we report the results of a study on the corrosion properties of carbon steel (UNI Fe360B) coated with a thin aluminium layer electrodeposited from ionic liquids and subsequently post-treated in an oxidizing environment. Two different types of treatments were investigated: thermal oxidation in air and electrochemical anodization. We found that heat treatments provided only a modest improvement of the anticorrosion properties while the electrochemical treatment produced a significant improvement.
Keywords:A  Ionic liquids  A  Aluminium  B  EIS  B  Polarization  B  XRD
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