Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel

Autores
Tomachuk, C. R.; Elsner, Cecilia Ines; Di Sarli, A. R.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The chromate conversion treatment is widely used, but it requires highly toxic chromic acid solutions with the consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within European Union. The corrosion resistance of three alternative treatments applied on electrogalvanised steel, and immersed in aerated 0.3 M Na2 SO4 solution, pH 10, at 25 °C, was investigated using electrochemical techniques. Their performance was compared with the obtained using the traditional Cr6+-based treatment in the same conditions. The achieved results show that the alternative coatings exhibited discrete protective properties in the sulphate solution. The nitro-cobalt chemical conversion treatment showed similar protective properties than the traditional Cr6+-based treatment, while with the Cr3+-based treatment those were very poor. The phosphate treatment initially performed acceptably but as the time elapsed, its protective properties decreased.
Fil: Tomachuk, C. R. . National Nuclear Energy Commission; 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. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Di Sarli, A. R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Materia
Conversion coatings
Electrodeposition
Electrochemical techniques
Corrosion
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/11230
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Electrochemical characterization of chromate free conversion coatings on electrogalvanized steelTomachuk, C. R. Elsner, Cecilia InesDi Sarli, A. R.Conversion coatingsElectrodepositionElectrochemical techniquesCorrosionhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The chromate conversion treatment is widely used, but it requires highly toxic chromic acid solutions with the consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within European Union. The corrosion resistance of three alternative treatments applied on electrogalvanised steel, and immersed in aerated 0.3 M Na2 SO4 solution, pH 10, at 25 °C, was investigated using electrochemical techniques. Their performance was compared with the obtained using the traditional Cr6+-based treatment in the same conditions. The achieved results show that the alternative coatings exhibited discrete protective properties in the sulphate solution. The nitro-cobalt chemical conversion treatment showed similar protective properties than the traditional Cr6+-based treatment, while with the Cr3+-based treatment those were very poor. The phosphate treatment initially performed acceptably but as the time elapsed, its protective properties decreased.Fil: Tomachuk, C. R. . National Nuclear Energy Commission; 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. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Di Sarli, A. R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaUniversidad Federal de Sao Carlos2014-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11230Tomachuk, C. R. ; Elsner, Cecilia Ines; Di Sarli, A. R.; Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel; Universidad Federal de Sao Carlos; Materials Research; 17; 1; 3-2014; 61-681516-1439enginfo:eu-repo/semantics/altIdentifier/doi/10.1590/S1516-14392013005000179info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/83wvz9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:30:21Zoai:ri.conicet.gov.ar:11336/11230instacron: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:34982025-10-15 15:30:21.408CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
title Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
spellingShingle Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
Tomachuk, C. R.
Conversion coatings
Electrodeposition
Electrochemical techniques
Corrosion
title_short Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
title_full Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
title_fullStr Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
title_full_unstemmed Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
title_sort Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel
dc.creator.none.fl_str_mv Tomachuk, C. R.
Elsner, Cecilia Ines
Di Sarli, A. R.
author Tomachuk, C. R.
author_facet Tomachuk, C. R.
Elsner, Cecilia Ines
Di Sarli, A. R.
author_role author
author2 Elsner, Cecilia Ines
Di Sarli, A. R.
author2_role author
author
dc.subject.none.fl_str_mv Conversion coatings
Electrodeposition
Electrochemical techniques
Corrosion
topic Conversion coatings
Electrodeposition
Electrochemical techniques
Corrosion
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 chromate conversion treatment is widely used, but it requires highly toxic chromic acid solutions with the consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within European Union. The corrosion resistance of three alternative treatments applied on electrogalvanised steel, and immersed in aerated 0.3 M Na2 SO4 solution, pH 10, at 25 °C, was investigated using electrochemical techniques. Their performance was compared with the obtained using the traditional Cr6+-based treatment in the same conditions. The achieved results show that the alternative coatings exhibited discrete protective properties in the sulphate solution. The nitro-cobalt chemical conversion treatment showed similar protective properties than the traditional Cr6+-based treatment, while with the Cr3+-based treatment those were very poor. The phosphate treatment initially performed acceptably but as the time elapsed, its protective properties decreased.
Fil: Tomachuk, C. R. . National Nuclear Energy Commission; 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. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Di Sarli, A. R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Tecnología de Pinturas (i); Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
description The chromate conversion treatment is widely used, but it requires highly toxic chromic acid solutions with the consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within European Union. The corrosion resistance of three alternative treatments applied on electrogalvanised steel, and immersed in aerated 0.3 M Na2 SO4 solution, pH 10, at 25 °C, was investigated using electrochemical techniques. Their performance was compared with the obtained using the traditional Cr6+-based treatment in the same conditions. The achieved results show that the alternative coatings exhibited discrete protective properties in the sulphate solution. The nitro-cobalt chemical conversion treatment showed similar protective properties than the traditional Cr6+-based treatment, while with the Cr3+-based treatment those were very poor. The phosphate treatment initially performed acceptably but as the time elapsed, its protective properties decreased.
publishDate 2014
dc.date.none.fl_str_mv 2014-03
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/11336/11230
Tomachuk, C. R. ; Elsner, Cecilia Ines; Di Sarli, A. R.; Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel; Universidad Federal de Sao Carlos; Materials Research; 17; 1; 3-2014; 61-68
1516-1439
url http://hdl.handle.net/11336/11230
identifier_str_mv Tomachuk, C. R. ; Elsner, Cecilia Ines; Di Sarli, A. R.; Electrochemical characterization of chromate free conversion coatings on electrogalvanized steel; Universidad Federal de Sao Carlos; Materials Research; 17; 1; 3-2014; 61-68
1516-1439
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1590/S1516-14392013005000179
info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/83wvz9
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
dc.publisher.none.fl_str_mv Universidad Federal de Sao Carlos
publisher.none.fl_str_mv Universidad Federal de Sao Carlos
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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score 13.22299

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