Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system

Detalhes bibliográficos
Autor(a) principal: Moreira, Vitor Bonamigo
Data de Publicação: 2021
Outros Autores: Meneguzzi, Alvaro, Jimenez Pique, Emilio, Alemán, Carlos, Armelin, Elaine
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/231503
Resumo: In this work, the use of ZrO2 nanocoating in aluminum substrates, generated by controlled electrochemical chronoamperometry in hexafluorozirconic acid solutions (H2ZrF6·5H2O), resulted in a lower porous films than that obtained by chemical conversion coating. After the application of an epoxy coating, long-term cyclic immersion corrosion tests and scratch tests proved the superior protection of the dual system and the coating lifespan, thanks to the enhanced adhesion of ZrO2 intermediate layer and the organic coating. As zirconium-based electrolytes are considered more friendly bath if compared to that of other conversion coating processes, like chromating, phosphating or anodizing processes, the study opens new insights to the protection of structural metals in sectors such as automotive, naval and aerospace industries. The main advantages are the employment of lightweight intermediate pre-treatment (nanoscale), compared to conventional ones (microscale), and reduction of waste slurry (electrolyte bath free of additives).
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spelling Moreira, Vitor BonamigoMeneguzzi, AlvaroJimenez Pique, EmilioAlemán, CarlosArmelin, Elaine2021-11-04T04:23:45Z20212071-1050http://hdl.handle.net/10183/231503001132823In this work, the use of ZrO2 nanocoating in aluminum substrates, generated by controlled electrochemical chronoamperometry in hexafluorozirconic acid solutions (H2ZrF6·5H2O), resulted in a lower porous films than that obtained by chemical conversion coating. After the application of an epoxy coating, long-term cyclic immersion corrosion tests and scratch tests proved the superior protection of the dual system and the coating lifespan, thanks to the enhanced adhesion of ZrO2 intermediate layer and the organic coating. As zirconium-based electrolytes are considered more friendly bath if compared to that of other conversion coating processes, like chromating, phosphating or anodizing processes, the study opens new insights to the protection of structural metals in sectors such as automotive, naval and aerospace industries. The main advantages are the employment of lightweight intermediate pre-treatment (nanoscale), compared to conventional ones (microscale), and reduction of waste slurry (electrolyte bath free of additives).application/pdfengSustanaibility. Basel. Vol. 13, no. 17 (Sept. 2021)AlumínioRevestimento de proteçãoÓxido de zircônioZirconium conversion coatingGreen coatingOrganic coatingHardness testCorrosion analysisAluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual systemEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001132823.pdf.txt001132823.pdf.txtExtracted Texttext/plain54705http://www.lume.ufrgs.br/bitstream/10183/231503/2/001132823.pdf.txteaafa47b1656189ac14132ac3c68b183MD52ORIGINAL001132823.pdfTexto completo (inglês)application/pdf4264792http://www.lume.ufrgs.br/bitstream/10183/231503/1/001132823.pdff4d81fa8eb441a3905dbd4a93cd4c660MD5110183/2315032021-11-20 05:42:44.468375oai:www.lume.ufrgs.br:10183/231503Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-11-20T07:42:44Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system
title Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system
spellingShingle Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system
Moreira, Vitor Bonamigo
Alumínio
Revestimento de proteção
Óxido de zircônio
Zirconium conversion coating
Green coating
Organic coating
Hardness test
Corrosion analysis
title_short Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system
title_full Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system
title_fullStr Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system
title_full_unstemmed Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system
title_sort Aluminum protection by using green zirconium oxide layer and organic coating : an efficient and adherent dual system
author Moreira, Vitor Bonamigo
author_facet Moreira, Vitor Bonamigo
Meneguzzi, Alvaro
Jimenez Pique, Emilio
Alemán, Carlos
Armelin, Elaine
author_role author
author2 Meneguzzi, Alvaro
Jimenez Pique, Emilio
Alemán, Carlos
Armelin, Elaine
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Moreira, Vitor Bonamigo
Meneguzzi, Alvaro
Jimenez Pique, Emilio
Alemán, Carlos
Armelin, Elaine
dc.subject.por.fl_str_mv Alumínio
Revestimento de proteção
Óxido de zircônio
topic Alumínio
Revestimento de proteção
Óxido de zircônio
Zirconium conversion coating
Green coating
Organic coating
Hardness test
Corrosion analysis
dc.subject.eng.fl_str_mv Zirconium conversion coating
Green coating
Organic coating
Hardness test
Corrosion analysis
description In this work, the use of ZrO2 nanocoating in aluminum substrates, generated by controlled electrochemical chronoamperometry in hexafluorozirconic acid solutions (H2ZrF6·5H2O), resulted in a lower porous films than that obtained by chemical conversion coating. After the application of an epoxy coating, long-term cyclic immersion corrosion tests and scratch tests proved the superior protection of the dual system and the coating lifespan, thanks to the enhanced adhesion of ZrO2 intermediate layer and the organic coating. As zirconium-based electrolytes are considered more friendly bath if compared to that of other conversion coating processes, like chromating, phosphating or anodizing processes, the study opens new insights to the protection of structural metals in sectors such as automotive, naval and aerospace industries. The main advantages are the employment of lightweight intermediate pre-treatment (nanoscale), compared to conventional ones (microscale), and reduction of waste slurry (electrolyte bath free of additives).
publishDate 2021
dc.date.accessioned.fl_str_mv 2021-11-04T04:23:45Z
dc.date.issued.fl_str_mv 2021
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/231503
dc.identifier.issn.pt_BR.fl_str_mv 2071-1050
dc.identifier.nrb.pt_BR.fl_str_mv 001132823
identifier_str_mv 2071-1050
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url http://hdl.handle.net/10183/231503
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Sustanaibility. Basel. Vol. 13, no. 17 (Sept. 2021)
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
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instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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