Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)

Autores
Seré, Pablo Ricardo; Deyá, Marta Cecilia; Egli, Walter Alfredo; Elsner, Cecilia Inés; Di Sarli, Alejandro Ramón
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The corrosion behavior of hot dip galvanized steel (HDGS) pre-treated with mercaptopropyltrimethoxysilane and a commercial sulfur-bearing silane was studied. Electrochemical polarization, electrochemical impedance spectroscopy, and electrochemical noise tests showed that silane coatings have a corrosion protection performance similar to the usual hexavalent chromium HDGS passivation treatments. It is also evident that the silane films protect the zinc surface through the formation of an isolating barrier. Through voltamperometric studies it was possible to define an electrochemical porosity of the protective coatings. Based on copper sulfate tests and electrochemical porosity results the films protection capability was evaluated, showing that silane treatments have similar or even better protection performance than standard chromium passivation.
Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT)
Materia
Ingeniería Química
Cyclic voltammetry
Electrochemical impedance spectroscopy
Metal coatings
Polymer coatings
Scanning electron microscopy
Zinc
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/81573
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/81573
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network_name_str SEDICI (UNLP)
spelling Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)Seré, Pablo RicardoDeyá, Marta CeciliaEgli, Walter AlfredoElsner, Cecilia InésDi Sarli, Alejandro RamónIngeniería QuímicaCyclic voltammetryElectrochemical impedance spectroscopyMetal coatingsPolymer coatingsScanning electron microscopyZincThe corrosion behavior of hot dip galvanized steel (HDGS) pre-treated with mercaptopropyltrimethoxysilane and a commercial sulfur-bearing silane was studied. Electrochemical polarization, electrochemical impedance spectroscopy, and electrochemical noise tests showed that silane coatings have a corrosion protection performance similar to the usual hexavalent chromium HDGS passivation treatments. It is also evident that the silane films protect the zinc surface through the formation of an isolating barrier. Through voltamperometric studies it was possible to define an electrochemical porosity of the protective coatings. Based on copper sulfate tests and electrochemical porosity results the films protection capability was evaluated, showing that silane treatments have similar or even better protection performance than standard chromium passivation.Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT)2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf342-348http://sedici.unlp.edu.ar/handle/10915/81573enginfo:eu-repo/semantics/altIdentifier/issn/1059-9495info:eu-repo/semantics/altIdentifier/doi/10.1007/s11665-013-0746-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:07Zoai:sedici.unlp.edu.ar:10915/81573Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:07.725SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)
title Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)
spellingShingle Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)
Seré, Pablo Ricardo
Ingeniería Química
Cyclic voltammetry
Electrochemical impedance spectroscopy
Metal coatings
Polymer coatings
Scanning electron microscopy
Zinc
title_short Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)
title_full Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)
title_fullStr Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)
title_full_unstemmed Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)
title_sort Protection of Galvanized Steel with Silanes: Its Comparison with Chromium (VI)
dc.creator.none.fl_str_mv Seré, Pablo Ricardo
Deyá, Marta Cecilia
Egli, Walter Alfredo
Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
author Seré, Pablo Ricardo
author_facet Seré, Pablo Ricardo
Deyá, Marta Cecilia
Egli, Walter Alfredo
Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
author_role author
author2 Deyá, Marta Cecilia
Egli, Walter Alfredo
Elsner, Cecilia Inés
Di Sarli, Alejandro Ramón
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ingeniería Química
Cyclic voltammetry
Electrochemical impedance spectroscopy
Metal coatings
Polymer coatings
Scanning electron microscopy
Zinc
topic Ingeniería Química
Cyclic voltammetry
Electrochemical impedance spectroscopy
Metal coatings
Polymer coatings
Scanning electron microscopy
Zinc
dc.description.none.fl_txt_mv The corrosion behavior of hot dip galvanized steel (HDGS) pre-treated with mercaptopropyltrimethoxysilane and a commercial sulfur-bearing silane was studied. Electrochemical polarization, electrochemical impedance spectroscopy, and electrochemical noise tests showed that silane coatings have a corrosion protection performance similar to the usual hexavalent chromium HDGS passivation treatments. It is also evident that the silane films protect the zinc surface through the formation of an isolating barrier. Through voltamperometric studies it was possible to define an electrochemical porosity of the protective coatings. Based on copper sulfate tests and electrochemical porosity results the films protection capability was evaluated, showing that silane treatments have similar or even better protection performance than standard chromium passivation.
Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT)
description The corrosion behavior of hot dip galvanized steel (HDGS) pre-treated with mercaptopropyltrimethoxysilane and a commercial sulfur-bearing silane was studied. Electrochemical polarization, electrochemical impedance spectroscopy, and electrochemical noise tests showed that silane coatings have a corrosion protection performance similar to the usual hexavalent chromium HDGS passivation treatments. It is also evident that the silane films protect the zinc surface through the formation of an isolating barrier. Through voltamperometric studies it was possible to define an electrochemical porosity of the protective coatings. Based on copper sulfate tests and electrochemical porosity results the films protection capability was evaluated, showing that silane treatments have similar or even better protection performance than standard chromium passivation.
publishDate 2014
dc.date.none.fl_str_mv 2014
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/10915/81573
url http://sedici.unlp.edu.ar/handle/10915/81573
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1059-9495
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11665-013-0746-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
342-348
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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