Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel

Autores
Tomachuk, C. R.; Elsner, Cecilia Inés; Di Sarli, Alejandro Ramón; Ferraz, O. B.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effectiveness of Cr(VI)-based passivation treatments is well accepted but there are many problems with regard to their environmental suitability. Because these compounds are carcinogenic and toxic, eco-friendly systems capable of replacing them are being evaluated. In this work, the corrosion behavior in 0.5 M NaCl solution of zinc coatings deposited from a free-cyanide alkaline bath and treated with Cr3+ based passivation coatings were characterized through DC and EIS techniques. The salt spray test as well as studies of the surface structure and chemical composition were also performed. From these analyses it was inferred that (1) the greencolored Cr3+ passivated coatings provide better corrosion resistance than the yellow- and blue-colored coatings, and (2) together with an adequate painting system, they could be a less polluting and less toxic alternative to traditional chromate coatings.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Materia
Química
Conversion treatment
Corrosion
Green technologies
Impedance spectroscopy
Salt spray
Zinc
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/81952
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/81952
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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steelTomachuk, C. R.Elsner, Cecilia InésDi Sarli, Alejandro RamónFerraz, O. B.QuímicaConversion treatmentCorrosionGreen technologiesImpedance spectroscopySalt sprayZincThe effectiveness of Cr(VI)-based passivation treatments is well accepted but there are many problems with regard to their environmental suitability. Because these compounds are carcinogenic and toxic, eco-friendly systems capable of replacing them are being evaluated. In this work, the corrosion behavior in 0.5 M NaCl solution of zinc coatings deposited from a free-cyanide alkaline bath and treated with Cr3+ based passivation coatings were characterized through DC and EIS techniques. The salt spray test as well as studies of the surface structure and chemical composition were also performed. From these analyses it was inferred that (1) the greencolored Cr3+ passivated coatings provide better corrosion resistance than the yellow- and blue-colored coatings, and (2) together with an adequate painting system, they could be a less polluting and less toxic alternative to traditional chromate coatings.Centro de Investigación y Desarrollo en Tecnología de Pinturas2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf493-502http://sedici.unlp.edu.ar/handle/10915/81952enginfo:eu-repo/semantics/altIdentifier/issn/1945-9645info:eu-repo/semantics/altIdentifier/doi/10.1007/s11998-009-9213-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/4.0/Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:56:07Zoai:sedici.unlp.edu.ar:10915/81952Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:56:07.899SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel
title Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel
spellingShingle Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel
Tomachuk, C. R.
Química
Conversion treatment
Corrosion
Green technologies
Impedance spectroscopy
Salt spray
Zinc
title_short Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel
title_full Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel
title_fullStr Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel
title_full_unstemmed Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel
title_sort Morphology and Corrosion Resistance of Cr(III)-based conversion treatments for electrogalvanized steel
dc.creator.none.fl_str_mv Tomachuk, C. R.
Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
Ferraz, O. B.
author Tomachuk, C. R.
author_facet Tomachuk, C. R.
Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
Ferraz, O. B.
author_role author
author2 Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
Ferraz, O. B.
author2_role author
author
author
dc.subject.none.fl_str_mv Química
Conversion treatment
Corrosion
Green technologies
Impedance spectroscopy
Salt spray
Zinc
topic Química
Conversion treatment
Corrosion
Green technologies
Impedance spectroscopy
Salt spray
Zinc
dc.description.none.fl_txt_mv The effectiveness of Cr(VI)-based passivation treatments is well accepted but there are many problems with regard to their environmental suitability. Because these compounds are carcinogenic and toxic, eco-friendly systems capable of replacing them are being evaluated. In this work, the corrosion behavior in 0.5 M NaCl solution of zinc coatings deposited from a free-cyanide alkaline bath and treated with Cr3+ based passivation coatings were characterized through DC and EIS techniques. The salt spray test as well as studies of the surface structure and chemical composition were also performed. From these analyses it was inferred that (1) the greencolored Cr3+ passivated coatings provide better corrosion resistance than the yellow- and blue-colored coatings, and (2) together with an adequate painting system, they could be a less polluting and less toxic alternative to traditional chromate coatings.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
description The effectiveness of Cr(VI)-based passivation treatments is well accepted but there are many problems with regard to their environmental suitability. Because these compounds are carcinogenic and toxic, eco-friendly systems capable of replacing them are being evaluated. In this work, the corrosion behavior in 0.5 M NaCl solution of zinc coatings deposited from a free-cyanide alkaline bath and treated with Cr3+ based passivation coatings were characterized through DC and EIS techniques. The salt spray test as well as studies of the surface structure and chemical composition were also performed. From these analyses it was inferred that (1) the greencolored Cr3+ passivated coatings provide better corrosion resistance than the yellow- and blue-colored coatings, and (2) together with an adequate painting system, they could be a less polluting and less toxic alternative to traditional chromate coatings.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/81952
url http://sedici.unlp.edu.ar/handle/10915/81952
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1945-9645
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11998-009-9213-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
dc.format.none.fl_str_mv application/pdf
493-502
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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