Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet
- Autores
- Di Sarli, Alejandro Ramón; Elsner, Cecilia Inés; Palomino, L.E.M.; Tomachuk, Célia Regina
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Chromate conversion treatments have been widely used due to their excellent corrosion resistance properties; however, their use is increasingly restricted because of the highly toxic chromic acid solutions required, with consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within most of the developed countries. In this work, the corrosion resistance of different alternative pretreatments applied on electrogalvanised steel sheet: 1) Cr(III) and Zr complexes layer, 2) Ce(III) layer, 3) Ce(III)/Ce(IV) double layer, 4) Cr(VI) chromating was investigated, and its results compared with those from the tests performed using bare electrogalvanized steel sheets as a substrate. These samples were exposed to aerated 0.05 mol/L NaCl or 0.1 mol/L Na2SO4 solutions. The electrochemical behavior of samples was studied by electrochemical techniques. For three days of immersion in the solution test, the experimental results have shown that, compared with the Cr(VI) protective properties, the Cr(III) + Zr complex layer presented similar performance. Even though the initial corrosion resistance was offered by the Ce(III) and Ce(VI)/Ce(III) conversion coatings was relatively good, it quickly decreased as a function of the exposure time.
Centro de Investigación y Desarrollo en Tecnología de Pinturas - Materia
-
Ingeniería en Materiales
Pre-treatments
Conversion coatings
Corrosión
EIS
Electrogalvanised steel - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/119304
Ver los metadatos del registro completo
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Corrosion Performance of Conversion Treatments for Electrogalvanised Steel SheetDi Sarli, Alejandro RamónElsner, Cecilia InésPalomino, L.E.M.Tomachuk, Célia ReginaIngeniería en MaterialesPre-treatmentsConversion coatingsCorrosiónEISElectrogalvanised steelChromate conversion treatments have been widely used due to their excellent corrosion resistance properties; however, their use is increasingly restricted because of the highly toxic chromic acid solutions required, with consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within most of the developed countries. In this work, the corrosion resistance of different alternative pretreatments applied on electrogalvanised steel sheet: 1) Cr(III) and Zr complexes layer, 2) Ce(III) layer, 3) Ce(III)/Ce(IV) double layer, 4) Cr(VI) chromating was investigated, and its results compared with those from the tests performed using bare electrogalvanized steel sheets as a substrate. These samples were exposed to aerated 0.05 mol/L NaCl or 0.1 mol/L Na2SO4 solutions. The electrochemical behavior of samples was studied by electrochemical techniques. For three days of immersion in the solution test, the experimental results have shown that, compared with the Cr(VI) protective properties, the Cr(III) + Zr complex layer presented similar performance. Even though the initial corrosion resistance was offered by the Ce(III) and Ce(VI)/Ce(III) conversion coatings was relatively good, it quickly decreased as a function of the exposure time.Centro de Investigación y Desarrollo en Tecnología de Pinturas2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf307-329http://sedici.unlp.edu.ar/handle/10915/119304enginfo:eu-repo/semantics/altIdentifier/issn/2327-4085info:eu-repo/semantics/altIdentifier/issn/2327-4077info:eu-repo/semantics/altIdentifier/doi/10.4236/jmmce.2019.75022info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:28:09Zoai:sedici.unlp.edu.ar:10915/119304Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:28:09.853SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet |
title |
Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet |
spellingShingle |
Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet Di Sarli, Alejandro Ramón Ingeniería en Materiales Pre-treatments Conversion coatings Corrosión EIS Electrogalvanised steel |
title_short |
Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet |
title_full |
Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet |
title_fullStr |
Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet |
title_full_unstemmed |
Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet |
title_sort |
Corrosion Performance of Conversion Treatments for Electrogalvanised Steel Sheet |
dc.creator.none.fl_str_mv |
Di Sarli, Alejandro Ramón Elsner, Cecilia Inés Palomino, L.E.M. Tomachuk, Célia Regina |
author |
Di Sarli, Alejandro Ramón |
author_facet |
Di Sarli, Alejandro Ramón Elsner, Cecilia Inés Palomino, L.E.M. Tomachuk, Célia Regina |
author_role |
author |
author2 |
Elsner, Cecilia Inés Palomino, L.E.M. Tomachuk, Célia Regina |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Ingeniería en Materiales Pre-treatments Conversion coatings Corrosión EIS Electrogalvanised steel |
topic |
Ingeniería en Materiales Pre-treatments Conversion coatings Corrosión EIS Electrogalvanised steel |
dc.description.none.fl_txt_mv |
Chromate conversion treatments have been widely used due to their excellent corrosion resistance properties; however, their use is increasingly restricted because of the highly toxic chromic acid solutions required, with consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within most of the developed countries. In this work, the corrosion resistance of different alternative pretreatments applied on electrogalvanised steel sheet: 1) Cr(III) and Zr complexes layer, 2) Ce(III) layer, 3) Ce(III)/Ce(IV) double layer, 4) Cr(VI) chromating was investigated, and its results compared with those from the tests performed using bare electrogalvanized steel sheets as a substrate. These samples were exposed to aerated 0.05 mol/L NaCl or 0.1 mol/L Na2SO4 solutions. The electrochemical behavior of samples was studied by electrochemical techniques. For three days of immersion in the solution test, the experimental results have shown that, compared with the Cr(VI) protective properties, the Cr(III) + Zr complex layer presented similar performance. Even though the initial corrosion resistance was offered by the Ce(III) and Ce(VI)/Ce(III) conversion coatings was relatively good, it quickly decreased as a function of the exposure time. Centro de Investigación y Desarrollo en Tecnología de Pinturas |
description |
Chromate conversion treatments have been widely used due to their excellent corrosion resistance properties; however, their use is increasingly restricted because of the highly toxic chromic acid solutions required, with consequent effluent disposal and ecological problems. The removal of these toxic chemicals is considered a priority within most of the developed countries. In this work, the corrosion resistance of different alternative pretreatments applied on electrogalvanised steel sheet: 1) Cr(III) and Zr complexes layer, 2) Ce(III) layer, 3) Ce(III)/Ce(IV) double layer, 4) Cr(VI) chromating was investigated, and its results compared with those from the tests performed using bare electrogalvanized steel sheets as a substrate. These samples were exposed to aerated 0.05 mol/L NaCl or 0.1 mol/L Na2SO4 solutions. The electrochemical behavior of samples was studied by electrochemical techniques. For three days of immersion in the solution test, the experimental results have shown that, compared with the Cr(VI) protective properties, the Cr(III) + Zr complex layer presented similar performance. Even though the initial corrosion resistance was offered by the Ce(III) and Ce(VI)/Ce(III) conversion coatings was relatively good, it quickly decreased as a function of the exposure time. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
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 |
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article |
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publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/119304 |
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http://sedici.unlp.edu.ar/handle/10915/119304 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/altIdentifier/issn/2327-4085 info:eu-repo/semantics/altIdentifier/issn/2327-4077 info:eu-repo/semantics/altIdentifier/doi/10.4236/jmmce.2019.75022 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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application/pdf 307-329 |
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