CIDEPINT 05376
CENTRO DE INVESTIGACIONES EN TECNOLOGIA DE PINTURAS
Unidad Ejecutora - UE
artículos
Título:
Behavior of Electrogalvanized Steel Pre-Treated with Cr(III)-Based Baths and Exposed to 0.5 M Na2SO4 Solution.
Autor/es:
C.R. TOMACHUK; C. I. ELSNER; A.R. DI SARLI
Revista:
Portugaliae Electrochimica Acta
Editorial:
Sociedad Portuguesa de Electroquímica
Referencias:
Lugar: Coimbra; Año: 2012 vol. 30 p. 145 - 162
ISSN:
1647-1571
Resumen:
As Cr (VI) compounds used to formulate conversion layers provide enhanced anticorrosive protection to zinc coatings, but they are produced using hazardous chemicals, the development of green technologies is a paramount purpose. Consequently, the corrosion behavior of zinc coatings subjected to a Cr3+ based passivating treatment, with and without sealing, was studied through EIS measurements in 0.5 M Na2SO4 solution. The analyses of the experimental data allowed inferring that the Cr3+-based conversion treatment with an adequate sealer provides good corrosionresistance and, coupled to an adequate painting system, could be a suitable alternative totraditional chromate coatings.
