Study on corrosive electrochemical behaviors of zinc-rich and graphite-filled epoxy coatings in 3.5 wt% NaCl solution / J. Liu in Materials and corrosion, Vol. 62 N° 11 (Novembre 2011)  

Public ISBD [article]  inMaterials and corrosion > Vol. 62 N° 11 (Novembre 2011) . - pp.1008–1014 Titre : Study on corrosive electrochemical behaviors of zinc-rich and graphite-filled epoxy coatings in 3.5 wt% NaCl solution Type de document : texte imprimé Auteurs : J. Liu, Auteur ; F. Wang, Auteur ; K. C. Park, Auteur Année de publication : 2012 Article en page(s) : pp.1008–1014 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Corrosive behaviors EIS Epoxy coatings Mechanisms Seawater Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : Environment behaviors and degradation mechanisms of two organic epoxy coatings coated on carbon steel sheets in 3.5 wt% NaCl neutral solution were studied by electrochemical impedance measurements and atomic force microscopy (AFM). The results showed that the coating resistance (Rp) of the graphite-filled epoxy coating tested, which presents the film barrier performance, is higher than those of 6101 epoxy resin for initial seawater immersion, but the coating resistance of the zinc-rich epoxy coating was lower than that of 6101 epoxy resin. After salt spray tests, zinc-rich epoxy coating coated on the metal still has good anti-corrosion performances due to the existence of protection effects called “electrochemical” and “chemical” protection. Those behaviors and degradation mechanisms of two coatings can be explained by a series of measured electrochemical impedance spectroscopy measurements, and two equivalent circuit models were proposed to explain the degradation processes of the two organic coatings. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905517/abstract [article] Study on corrosive electrochemical behaviors of zinc-rich and graphite-filled epoxy coatings in 3.5 wt% NaCl solution [texte imprimé] / J. Liu, Auteur ; F. Wang, Auteur ; K. C. Park, Auteur . - 2012 . - pp.1008–1014. Génie Mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 62 N° 11 (Novembre 2011) . - pp.1008–1014 Mots-clés : Corrosive behaviors EIS Epoxy coatings Mechanisms Seawater Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : Environment behaviors and degradation mechanisms of two organic epoxy coatings coated on carbon steel sheets in 3.5 wt% NaCl neutral solution were studied by electrochemical impedance measurements and atomic force microscopy (AFM). The results showed that the coating resistance (Rp) of the graphite-filled epoxy coating tested, which presents the film barrier performance, is higher than those of 6101 epoxy resin for initial seawater immersion, but the coating resistance of the zinc-rich epoxy coating was lower than that of 6101 epoxy resin. After salt spray tests, zinc-rich epoxy coating coated on the metal still has good anti-corrosion performances due to the existence of protection effects called “electrochemical” and “chemical” protection. Those behaviors and degradation mechanisms of two coatings can be explained by a series of measured electrochemical impedance spectroscopy measurements, and two equivalent circuit models were proposed to explain the degradation processes of the two organic coatings. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905517/abstract

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire