Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques

Detalhes bibliográficos
Autor(a) principal: Ivanou, D. K.
Data de Publicação: 2016
Outros Autores: Yasakau, K. A., Kallip, S., Lisenkov, A. D., Starykevich, M., Lamaka, S. V., Ferreira, M. G. S., Zheludkevich, M. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/20119
Resumo: An active protective coating for ZE41 magnesium alloy was produced by sealing an anodic layer, loaded with 1,2,4-triazole, with a sol-gel film. An anodic oxide layer was formed using PEO in a silicate-fluoride alkaline solution. This thin (1.8 mu m) porous PEO layer was impregnated with corrosion inhibitor 1,2,4-triazole and sealed with a silica-based sol-gel film modified with titanium oxide. For the first time it was demonstrated that this relatively thin PEO-based composite coating revealed high barrier properties and provided superior protection against corrosion attack during 1 month of continuous exposure to 3% NaCl. A scanning vibrating electrode technique showed a sharp decrease (100 times) of corrosion activity in micro defects formed in the 1,2,4-triazole doped composite coating, when compared to blank samples.
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spelling Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniquesPLASMA ELECTROLYTIC OXIDATIONAZ31 MG ALLOYCOMPOSITE COATINGSRESISTANCEAA2024FILMSIMPROVEMENTCONVERSIONLAYERAn active protective coating for ZE41 magnesium alloy was produced by sealing an anodic layer, loaded with 1,2,4-triazole, with a sol-gel film. An anodic oxide layer was formed using PEO in a silicate-fluoride alkaline solution. This thin (1.8 mu m) porous PEO layer was impregnated with corrosion inhibitor 1,2,4-triazole and sealed with a silica-based sol-gel film modified with titanium oxide. For the first time it was demonstrated that this relatively thin PEO-based composite coating revealed high barrier properties and provided superior protection against corrosion attack during 1 month of continuous exposure to 3% NaCl. A scanning vibrating electrode technique showed a sharp decrease (100 times) of corrosion activity in micro defects formed in the 1,2,4-triazole doped composite coating, when compared to blank samples.ROYAL SOC CHEMISTRY2017-12-07T19:36:08Z2016-01-01T00:00:00Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/20119eng2046-206910.1039/c5ra22639bIvanou, D. K.Yasakau, K. A.Kallip, S.Lisenkov, A. D.Starykevich, M.Lamaka, S. V.Ferreira, M. G. S.Zheludkevich, M. L.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:39:20Zoai:ria.ua.pt:10773/20119Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:54:49.200405Repositório 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 Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques
title Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques
spellingShingle Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques
Ivanou, D. K.
PLASMA ELECTROLYTIC OXIDATION
AZ31 MG ALLOY
COMPOSITE COATINGS
RESISTANCE
AA2024
FILMS
IMPROVEMENT
CONVERSION
LAYER
title_short Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques
title_full Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques
title_fullStr Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques
title_full_unstemmed Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques
title_sort Active corrosion protection coating for a ZE41 magnesium alloy created by combining PEO and sol-gel techniques
author Ivanou, D. K.
author_facet Ivanou, D. K.
Yasakau, K. A.
Kallip, S.
Lisenkov, A. D.
Starykevich, M.
Lamaka, S. V.
Ferreira, M. G. S.
Zheludkevich, M. L.
author_role author
author2 Yasakau, K. A.
Kallip, S.
Lisenkov, A. D.
Starykevich, M.
Lamaka, S. V.
Ferreira, M. G. S.
Zheludkevich, M. L.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Ivanou, D. K.
Yasakau, K. A.
Kallip, S.
Lisenkov, A. D.
Starykevich, M.
Lamaka, S. V.
Ferreira, M. G. S.
Zheludkevich, M. L.
dc.subject.por.fl_str_mv PLASMA ELECTROLYTIC OXIDATION
AZ31 MG ALLOY
COMPOSITE COATINGS
RESISTANCE
AA2024
FILMS
IMPROVEMENT
CONVERSION
LAYER
topic PLASMA ELECTROLYTIC OXIDATION
AZ31 MG ALLOY
COMPOSITE COATINGS
RESISTANCE
AA2024
FILMS
IMPROVEMENT
CONVERSION
LAYER
description An active protective coating for ZE41 magnesium alloy was produced by sealing an anodic layer, loaded with 1,2,4-triazole, with a sol-gel film. An anodic oxide layer was formed using PEO in a silicate-fluoride alkaline solution. This thin (1.8 mu m) porous PEO layer was impregnated with corrosion inhibitor 1,2,4-triazole and sealed with a silica-based sol-gel film modified with titanium oxide. For the first time it was demonstrated that this relatively thin PEO-based composite coating revealed high barrier properties and provided superior protection against corrosion attack during 1 month of continuous exposure to 3% NaCl. A scanning vibrating electrode technique showed a sharp decrease (100 times) of corrosion activity in micro defects formed in the 1,2,4-triazole doped composite coating, when compared to blank samples.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01T00:00:00Z
2016
2017-12-07T19:36:08Z
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://hdl.handle.net/10773/20119
url http://hdl.handle.net/10773/20119
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2046-2069
10.1039/c5ra22639b
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.publisher.none.fl_str_mv ROYAL SOC CHEMISTRY
publisher.none.fl_str_mv ROYAL SOC CHEMISTRY
dc.source.none.fl_str_mv 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
repository.mail.fl_str_mv
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