Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles

Detalhes bibliográficos
Autor(a) principal: Hussein,W.A.
Data de Publicação: 2018
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000600002
Resumo: In this paper, corrosion resistance was compared between molybdate conversion coatings containing SiO2 or TiO2 nanoparticles, on five magnesium alloys exposed to a 3.5 wt.% NaCl solution. The surface morphology of the molybdate conversion coatings containing SiO2 or TiO2 nanoparticles was examined by scanning electron microscopy (SEM). The corrosion resistance of the nanocoatings was investigated by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and potentiodynamic cyclic anodic polarization measurements. The electrochemical methods showed that the addition of SiO2 or TiO2 nanoparticles to the conversion treatment has significantly improved the corrosion resistance property of molybdate conversion coatings for all tested Mg alloys, but revealed that TiO2 was more effective.
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spelling Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticlesmagnesium alloyconversion coatingnano-particlesIn this paper, corrosion resistance was compared between molybdate conversion coatings containing SiO2 or TiO2 nanoparticles, on five magnesium alloys exposed to a 3.5 wt.% NaCl solution. The surface morphology of the molybdate conversion coatings containing SiO2 or TiO2 nanoparticles was examined by scanning electron microscopy (SEM). The corrosion resistance of the nanocoatings was investigated by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and potentiodynamic cyclic anodic polarization measurements. The electrochemical methods showed that the addition of SiO2 or TiO2 nanoparticles to the conversion treatment has significantly improved the corrosion resistance property of molybdate conversion coatings for all tested Mg alloys, but revealed that TiO2 was more effective.Sociedade Portuguesa de Electroquímica2018-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000600002Portugaliae Electrochimica Acta v.36 n.6 2018reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000600002Hussein,W.A.info:eu-repo/semantics/openAccess2024-02-06T17:07:28Zoai:scielo:S0872-19042018000600002Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:23.715879Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles
title Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles
spellingShingle Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles
Hussein,W.A.
magnesium alloy
conversion coating
nano-particles
title_short Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles
title_full Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles
title_fullStr Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles
title_full_unstemmed Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles
title_sort Comparative Corrosion Resistance of Molybdate Conversion Coatings Containing SiO2 or TiO2 Nanoparticles
author Hussein,W.A.
author_facet Hussein,W.A.
author_role author
dc.contributor.author.fl_str_mv Hussein,W.A.
dc.subject.por.fl_str_mv magnesium alloy
conversion coating
nano-particles
topic magnesium alloy
conversion coating
nano-particles
description In this paper, corrosion resistance was compared between molybdate conversion coatings containing SiO2 or TiO2 nanoparticles, on five magnesium alloys exposed to a 3.5 wt.% NaCl solution. The surface morphology of the molybdate conversion coatings containing SiO2 or TiO2 nanoparticles was examined by scanning electron microscopy (SEM). The corrosion resistance of the nanocoatings was investigated by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and potentiodynamic cyclic anodic polarization measurements. The electrochemical methods showed that the addition of SiO2 or TiO2 nanoparticles to the conversion treatment has significantly improved the corrosion resistance property of molybdate conversion coatings for all tested Mg alloys, but revealed that TiO2 was more effective.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000600002
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000600002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042018000600002
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
dc.source.none.fl_str_mv Portugaliae Electrochimica Acta v.36 n.6 2018
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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