| Titre : |
Evaluation of the anticorrosive behavior of epoxy-Nb2O5 paint in high temperatures submitted to the environment with sulfuric acid |
| Type de document : |
texte imprimé |
| Auteurs : |
Maria Eduarda Dias Serenario, Auteur ; Bernardo Augusto Farah Santos, Auteur ; Luiz Roberto Martins de Miranda, Auteur ; Alysson Helton Santos Bueno, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 1321–1329 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosifs
Anticorrosion
Epoxydes
Hautes températures
Pentoxyde de niobium
Revêtements -- Analyse
Revêtements -- Détérioration
Revêtements:Peinture
Spectroscopie d'impédance électrochimique
Sulfurique, Acide
Test d'immersion
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The aim of this study was to produce graphene oxide (GO) coatings on biodegradable AZ31B magnesium (Mg) alloy. GO was synthesized by improved Hummers’ method, and a suspension was prepared in deionized water by ultrasonication. GO coatings were developed on AZ31B Mg alloy by electrophoretic deposition (EPD). The EPD parameters, such as voltage and time, were optimized to obtain uniform GO coatings. Characterization was carried out using Fourier transform infrared spectroscopy, X-ray diffraction, atomic force microscopy (AFM), and scanning electron microscopy. GO was found to have a thickness of approximately 0.7–1 nm as determined by AFM. Electrochemical behavior of coatings was evaluated by Tafel analysis and electrochemical impedance spectroscopy (EIS) in Ringer’s lactate solution. GO coatings improved the corrosion resistance of the AZ31B Mg alloy by 16× in Ringer’s lactate solution as compared to bare Mg alloy. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Immersion tests - Assessment of degradation of coatings - Mechanical tests - Electrochemical impedance spectroscopy (EIS)
- RESULTS AND DISCUSSION : Coating degradation analysis - Mechanical properties of coatings - Electrochemical impedance spectroscopy (EIS) |
| DOI : |
https://doi.org/10.1007/s11998-020-00354-z |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-020-00354-z.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34576 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 5 (09/2020) . - p. 1321–1329
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