A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel
- Autores
- Di Sarli, Alejandro Ramón; Culcasi, J. D.; Tomachuk, C. R.; Elsner, Cecilia Ines; Ferreira Jr., J. M.; Costa, Isolda
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The corrosion resistance of pure zinc coatings can be improved through the application of suitable chemical passivation treatments. Hexavalent chromium (Cr6+) compounds have widely been used to formulate conversion layers providing better anticorrosive protection as well as anchorage properties to painting systems. However, taking into account that they are produced using hazardous chemical compounds, the development of alternative and “green” technologies with equivalent protective performance is a paramount purpose of many R&D laboratories working around the world. In the present paper, the corrosion behavior of industrially electrogalvanized steel subjected to a Cr3+ + Co2+-based passivation treatment was studied. The experimental work involved electrochemical impedance spectroscopy (EIS) measurements and polarization curves in a 0.1 mol/L Na2SO4 solution, surface microstructural and morphological characterization by electronic microscopy as well as chemical analysis by EDXS and XPS. The most commonly observed failures on the Cr6+ treated samples were attributed to microstructural features of the substrate that were not adequately healed by the Cr6+ passivation treatment.
Fil: Di Sarli, Alejandro Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Tecnología de Pinturas (i); Argentina
Fil: Culcasi, J. D.. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina
Fil: Tomachuk, C. R.. Universidade de Sao Paulo; Brasil
Fil: Elsner, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Tecnología de Pinturas (i); Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina
Fil: Ferreira Jr., J. M.. Energy and Nuclear Research Institute; Brasil
Fil: Costa, Isolda . Energy and Nuclear Research Institute; Brasil - Materia
-
Corrosion
Electrochemical Properties
Coatings
Sem
Edxs
Xps - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/11180
Ver los metadatos del registro completo
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A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steelDi Sarli, Alejandro RamónCulcasi, J. D.Tomachuk, C. R.Elsner, Cecilia InesFerreira Jr., J. M.Costa, Isolda CorrosionElectrochemical PropertiesCoatingsSemEdxsXpshttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The corrosion resistance of pure zinc coatings can be improved through the application of suitable chemical passivation treatments. Hexavalent chromium (Cr6+) compounds have widely been used to formulate conversion layers providing better anticorrosive protection as well as anchorage properties to painting systems. However, taking into account that they are produced using hazardous chemical compounds, the development of alternative and “green” technologies with equivalent protective performance is a paramount purpose of many R&D laboratories working around the world. In the present paper, the corrosion behavior of industrially electrogalvanized steel subjected to a Cr3+ + Co2+-based passivation treatment was studied. The experimental work involved electrochemical impedance spectroscopy (EIS) measurements and polarization curves in a 0.1 mol/L Na2SO4 solution, surface microstructural and morphological characterization by electronic microscopy as well as chemical analysis by EDXS and XPS. The most commonly observed failures on the Cr6+ treated samples were attributed to microstructural features of the substrate that were not adequately healed by the Cr6+ passivation treatment.Fil: Di Sarli, Alejandro Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Tecnología de Pinturas (i); ArgentinaFil: Culcasi, J. D.. Universidad Nacional de La Plata. Facultad de Ingenieria; ArgentinaFil: Tomachuk, C. R.. Universidade de Sao Paulo; BrasilFil: Elsner, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Tecnología de Pinturas (i); Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; ArgentinaFil: Ferreira Jr., J. M.. Energy and Nuclear Research Institute; BrasilFil: Costa, Isolda . Energy and Nuclear Research Institute; BrasilElsevier Science Sa2014-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11180Di Sarli, Alejandro Ramón; Culcasi, J. D.; Tomachuk, C. R.; Elsner, Cecilia Ines; Ferreira Jr., J. M.; et al.; A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel; Elsevier Science Sa; Surface And Coatings Technology; 258; 11-2014; 426-4360257-8972enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.surfcoat.2014.08.057info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0257897214007671info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:06:28Zoai:ri.conicet.gov.ar:11336/11180instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:06:28.657CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel |
title |
A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel |
spellingShingle |
A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel Di Sarli, Alejandro Ramón Corrosion Electrochemical Properties Coatings Sem Edxs Xps |
title_short |
A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel |
title_full |
A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel |
title_fullStr |
A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel |
title_full_unstemmed |
A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel |
title_sort |
A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel |
dc.creator.none.fl_str_mv |
Di Sarli, Alejandro Ramón Culcasi, J. D. Tomachuk, C. R. Elsner, Cecilia Ines Ferreira Jr., J. M. Costa, Isolda |
author |
Di Sarli, Alejandro Ramón |
author_facet |
Di Sarli, Alejandro Ramón Culcasi, J. D. Tomachuk, C. R. Elsner, Cecilia Ines Ferreira Jr., J. M. Costa, Isolda |
author_role |
author |
author2 |
Culcasi, J. D. Tomachuk, C. R. Elsner, Cecilia Ines Ferreira Jr., J. M. Costa, Isolda |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Corrosion Electrochemical Properties Coatings Sem Edxs Xps |
topic |
Corrosion Electrochemical Properties Coatings Sem Edxs Xps |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
The corrosion resistance of pure zinc coatings can be improved through the application of suitable chemical passivation treatments. Hexavalent chromium (Cr6+) compounds have widely been used to formulate conversion layers providing better anticorrosive protection as well as anchorage properties to painting systems. However, taking into account that they are produced using hazardous chemical compounds, the development of alternative and “green” technologies with equivalent protective performance is a paramount purpose of many R&D laboratories working around the world. In the present paper, the corrosion behavior of industrially electrogalvanized steel subjected to a Cr3+ + Co2+-based passivation treatment was studied. The experimental work involved electrochemical impedance spectroscopy (EIS) measurements and polarization curves in a 0.1 mol/L Na2SO4 solution, surface microstructural and morphological characterization by electronic microscopy as well as chemical analysis by EDXS and XPS. The most commonly observed failures on the Cr6+ treated samples were attributed to microstructural features of the substrate that were not adequately healed by the Cr6+ passivation treatment. Fil: Di Sarli, Alejandro Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Tecnología de Pinturas (i); Argentina Fil: Culcasi, J. D.. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina Fil: Tomachuk, C. R.. Universidade de Sao Paulo; Brasil Fil: Elsner, Cecilia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Tecnología de Pinturas (i); Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina Fil: Ferreira Jr., J. M.. Energy and Nuclear Research Institute; Brasil Fil: Costa, Isolda . Energy and Nuclear Research Institute; Brasil |
description |
The corrosion resistance of pure zinc coatings can be improved through the application of suitable chemical passivation treatments. Hexavalent chromium (Cr6+) compounds have widely been used to formulate conversion layers providing better anticorrosive protection as well as anchorage properties to painting systems. However, taking into account that they are produced using hazardous chemical compounds, the development of alternative and “green” technologies with equivalent protective performance is a paramount purpose of many R&D laboratories working around the world. In the present paper, the corrosion behavior of industrially electrogalvanized steel subjected to a Cr3+ + Co2+-based passivation treatment was studied. The experimental work involved electrochemical impedance spectroscopy (EIS) measurements and polarization curves in a 0.1 mol/L Na2SO4 solution, surface microstructural and morphological characterization by electronic microscopy as well as chemical analysis by EDXS and XPS. The most commonly observed failures on the Cr6+ treated samples were attributed to microstructural features of the substrate that were not adequately healed by the Cr6+ passivation treatment. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-11 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 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://hdl.handle.net/11336/11180 Di Sarli, Alejandro Ramón; Culcasi, J. D.; Tomachuk, C. R.; Elsner, Cecilia Ines; Ferreira Jr., J. M.; et al.; A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel; Elsevier Science Sa; Surface And Coatings Technology; 258; 11-2014; 426-436 0257-8972 |
url |
http://hdl.handle.net/11336/11180 |
identifier_str_mv |
Di Sarli, Alejandro Ramón; Culcasi, J. D.; Tomachuk, C. R.; Elsner, Cecilia Ines; Ferreira Jr., J. M.; et al.; A conversion layer based on trivalent chromium and cobalt for the corrosion protection of electrogalvanized steel; Elsevier Science Sa; Surface And Coatings Technology; 258; 11-2014; 426-436 0257-8972 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.surfcoat.2014.08.057 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0257897214007671 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science Sa |
publisher.none.fl_str_mv |
Elsevier Science Sa |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613913887375360 |
score |
13.070432 |