Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel

Detalhes bibliográficos
Autor(a) principal: Costa, Alberto Nei Carvalho
Data de Publicação: 2021
Outros Autores: Silva, Gilmar Clemente, Ferreira, Elivelton Alves, Nakazato, Roberto Zenhei
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/11973
Resumo: One of the main ways to protect steel against corrosion is by the galvanizing process. This process has been continuously developed and its first optimization was performed by the addition of Aluminum in the coating. As a result, Zn-5wt.%Al and 55wt.%Al-Zn coatings were developed. Recently, the search for increased corrosion resistance led to the development of zinc coating with the addition of magnesium and aluminum. In this work, a comparative study of the corrosion resistance of zinc coated steel and Zn-2wt.%Al-1wt.%Mg alloy coated steel was performed. Samples were exposed to immersion corrosion tests in 0.1 M NaCl electrolyte and were analyzed by using SEM, XDR and EIS. On zinc-coated steel, the steel substrate was attacked after 48 days of immersion, while on Zn-2wt.%Al-1wt.%Mg coated steel, the steel substrate showed corrosive process after 90-day of immersion. The corrosion product formed from Zn-2wt.%Al-1wt.%Mg coated steel is the main cause of its better corrosion resistance compared to zinc coated steel.
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spelling Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steelAnálisis comparativo de la resistencia a la corrosión de recubrimientos de zinc y Zn-Al-Mg sobre acero al carbonoAnálise comparativa da resistência à corrosão de revestimentos de Zinco e Zn-Al-Mg em aço carbonoAço revestidoCorrosãoMagnésioMicroestrutura.Coated SteelCorrosionMagnesiumMicrostructure.Acero revestidoCorrosiónMagnesioMicroestructura.One of the main ways to protect steel against corrosion is by the galvanizing process. This process has been continuously developed and its first optimization was performed by the addition of Aluminum in the coating. As a result, Zn-5wt.%Al and 55wt.%Al-Zn coatings were developed. Recently, the search for increased corrosion resistance led to the development of zinc coating with the addition of magnesium and aluminum. In this work, a comparative study of the corrosion resistance of zinc coated steel and Zn-2wt.%Al-1wt.%Mg alloy coated steel was performed. Samples were exposed to immersion corrosion tests in 0.1 M NaCl electrolyte and were analyzed by using SEM, XDR and EIS. On zinc-coated steel, the steel substrate was attacked after 48 days of immersion, while on Zn-2wt.%Al-1wt.%Mg coated steel, the steel substrate showed corrosive process after 90-day of immersion. The corrosion product formed from Zn-2wt.%Al-1wt.%Mg coated steel is the main cause of its better corrosion resistance compared to zinc coated steel.Una de las principales formas de proteger el acero contra la corrosión es mediante el proceso de galvanizado. Este proceso se ha desarrollado continuamente y su primera optimización se realizó mediante la adición de Aluminio en el recubrimiento. Como resultado, se desarrollaron revestimientos de Zn-5% en peso de Al y 55% en peso de Al-Zn. Recientemente, la búsqueda de una mayor resistencia a la corrosión condujo al desarrollo de un revestimiento de zinc con la adición de magnesio y aluminio. En este trabajo, se realizó un estudio comparativo de la resistencia a la corrosión del acero recubierto de zinc y el acero recubierto de aleación de Zn-2% en peso Al-1% en peso Mg. Las muestras se expusieron a pruebas de corrosión por inmersión en electrolito de NaCl 0,1 M y se analizaron utilizando SEM, XDR y EIS. Sobre acero revestido de zinc, el sustrato de acero fue atacado después de 48 días de inmersión, mientras que sobre acero revestido con Zn-2% en peso de Al-1% en peso de Mg, el sustrato de acero mostró un proceso corrosivo después de 90 días de inmersión. El producto de corrosión formado a partir de acero revestido con Zn-2% en peso Al-1% en peso Mg es la causa principal de su mejor resistencia a la corrosión en comparación con el acero revestido con zinc.Uma das principais formas de proteger o aço contra a corrosão é pelo processo de galvanização. Este processo tem sido continuamente desenvolvido e sua primeira otimização foi realizada com a adição de Alumínio no revestimento. Como resultado, foram desenvolvidos revestimentos de Zn-5% em peso de Al e 55% em peso de Al-Zn. Recentemente, a busca por maior resistência à corrosão levou ao desenvolvimento do revestimento de zinco com adição de magnésio e alumínio. Neste trabalho, foi realizado um estudo comparativo da resistência à corrosão do aço revestido com zinco e do aço revestido com liga de Zn-2% Al-1% Mg. As amostras foram expostas a testes de corrosão por imersão em eletrólito NaCl 0,1 M e analisadas por meio de MEV, XDR e EIS. No aço revestido com zinco, o substrato de aço foi atacado após 48 dias de imersão, enquanto no aço revestido com Zn-2% Al-1% Mg revestido em peso, o substrato de aço apresentou processo corrosivo após 90 dias de imersão. O produto de corrosão formado a partir de aço revestido de Zn-2% Al-1% em peso de Mg é a principal causa de sua melhor resistência à corrosão em comparação ao aço revestido de zinco.Research, Society and Development2021-01-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1197310.33448/rsd-v10i1.11973Research, Society and Development; Vol. 10 No. 1; e49810111973Research, Society and Development; Vol. 10 Núm. 1; e49810111973Research, Society and Development; v. 10 n. 1; e498101119732525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/11973/10782Copyright (c) 2021 Alberto Nei Carvalho Costa; Gilmar Clemente Silva; Elivelton Alves Ferreira; Roberto Zenhei Nakazatohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCosta, Alberto Nei Carvalho Silva, Gilmar Clemente Ferreira, Elivelton Alves Nakazato, Roberto Zenhei 2021-02-20T21:19:23Zoai:ojs.pkp.sfu.ca:article/11973Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:33:40.136942Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel
Análisis comparativo de la resistencia a la corrosión de recubrimientos de zinc y Zn-Al-Mg sobre acero al carbono
Análise comparativa da resistência à corrosão de revestimentos de Zinco e Zn-Al-Mg em aço carbono
title Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel
spellingShingle Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel
Costa, Alberto Nei Carvalho
Aço revestido
Corrosão
Magnésio
Microestrutura.
Coated Steel
Corrosion
Magnesium
Microstructure.
Acero revestido
Corrosión
Magnesio
Microestructura.
title_short Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel
title_full Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel
title_fullStr Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel
title_full_unstemmed Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel
title_sort Comparative analysis of corrosion resistance of Zinc and Zn-Al-Mg coatings on carbon steel
author Costa, Alberto Nei Carvalho
author_facet Costa, Alberto Nei Carvalho
Silva, Gilmar Clemente
Ferreira, Elivelton Alves
Nakazato, Roberto Zenhei
author_role author
author2 Silva, Gilmar Clemente
Ferreira, Elivelton Alves
Nakazato, Roberto Zenhei
author2_role author
author
author
dc.contributor.author.fl_str_mv Costa, Alberto Nei Carvalho
Silva, Gilmar Clemente
Ferreira, Elivelton Alves
Nakazato, Roberto Zenhei
dc.subject.por.fl_str_mv Aço revestido
Corrosão
Magnésio
Microestrutura.
Coated Steel
Corrosion
Magnesium
Microstructure.
Acero revestido
Corrosión
Magnesio
Microestructura.
topic Aço revestido
Corrosão
Magnésio
Microestrutura.
Coated Steel
Corrosion
Magnesium
Microstructure.
Acero revestido
Corrosión
Magnesio
Microestructura.
description One of the main ways to protect steel against corrosion is by the galvanizing process. This process has been continuously developed and its first optimization was performed by the addition of Aluminum in the coating. As a result, Zn-5wt.%Al and 55wt.%Al-Zn coatings were developed. Recently, the search for increased corrosion resistance led to the development of zinc coating with the addition of magnesium and aluminum. In this work, a comparative study of the corrosion resistance of zinc coated steel and Zn-2wt.%Al-1wt.%Mg alloy coated steel was performed. Samples were exposed to immersion corrosion tests in 0.1 M NaCl electrolyte and were analyzed by using SEM, XDR and EIS. On zinc-coated steel, the steel substrate was attacked after 48 days of immersion, while on Zn-2wt.%Al-1wt.%Mg coated steel, the steel substrate showed corrosive process after 90-day of immersion. The corrosion product formed from Zn-2wt.%Al-1wt.%Mg coated steel is the main cause of its better corrosion resistance compared to zinc coated steel.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-25
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/11973
10.33448/rsd-v10i1.11973
url https://rsdjournal.org/index.php/rsd/article/view/11973
identifier_str_mv 10.33448/rsd-v10i1.11973
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/11973/10782
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 10 No. 1; e49810111973
Research, Society and Development; Vol. 10 Núm. 1; e49810111973
Research, Society and Development; v. 10 n. 1; e49810111973
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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