Electrodissolution of Cu-Zn alloys in acetate media

Detalhes bibliográficos
Autor(a) principal: Machado,Vinicius C.
Data de Publicação: 2000
Outros Autores: Schmidt,Annelise M., Azambuja,Denise S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400011
Resumo: The eletrodissolution of Cu-Zn alloys with different chemical compositions (Cu37Zn and Cu39Zn3Pb) in acetate buffer pH 5 was studied by means of corrosion potential measurements and cyclic voltammetry, under static and dynamic conditions. The lower corrosion resistance of the brass in comparison to pure Cu, was attributed to the anodic layer structure consisting of a complex ZnO.x H2O /Cu2O-CuO layer, which is less protective than the Cu2O-CuO passive layer produced onto Cu. No selective dissolution of Zn was detected at both alloys, being their electrodissolution rate higher than that of pure Cu and smaller than that of pure Zn.
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spelling Electrodissolution of Cu-Zn alloys in acetate mediabrassdezincificationacetate mediaThe eletrodissolution of Cu-Zn alloys with different chemical compositions (Cu37Zn and Cu39Zn3Pb) in acetate buffer pH 5 was studied by means of corrosion potential measurements and cyclic voltammetry, under static and dynamic conditions. The lower corrosion resistance of the brass in comparison to pure Cu, was attributed to the anodic layer structure consisting of a complex ZnO.x H2O /Cu2O-CuO layer, which is less protective than the Cu2O-CuO passive layer produced onto Cu. No selective dissolution of Zn was detected at both alloys, being their electrodissolution rate higher than that of pure Cu and smaller than that of pure Zn.Sociedade Brasileira de Química2000-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400011Journal of the Brazilian Chemical Society v.11 n.4 2000reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532000000400011info:eu-repo/semantics/openAccessMachado,Vinicius C.Schmidt,Annelise M.Azambuja,Denise S.eng2000-11-17T00:00:00Zoai:scielo:S0103-50532000000400011Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2000-11-17T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Electrodissolution of Cu-Zn alloys in acetate media
title Electrodissolution of Cu-Zn alloys in acetate media
spellingShingle Electrodissolution of Cu-Zn alloys in acetate media
Machado,Vinicius C.
brass
dezincification
acetate media
title_short Electrodissolution of Cu-Zn alloys in acetate media
title_full Electrodissolution of Cu-Zn alloys in acetate media
title_fullStr Electrodissolution of Cu-Zn alloys in acetate media
title_full_unstemmed Electrodissolution of Cu-Zn alloys in acetate media
title_sort Electrodissolution of Cu-Zn alloys in acetate media
author Machado,Vinicius C.
author_facet Machado,Vinicius C.
Schmidt,Annelise M.
Azambuja,Denise S.
author_role author
author2 Schmidt,Annelise M.
Azambuja,Denise S.
author2_role author
author
dc.contributor.author.fl_str_mv Machado,Vinicius C.
Schmidt,Annelise M.
Azambuja,Denise S.
dc.subject.por.fl_str_mv brass
dezincification
acetate media
topic brass
dezincification
acetate media
description The eletrodissolution of Cu-Zn alloys with different chemical compositions (Cu37Zn and Cu39Zn3Pb) in acetate buffer pH 5 was studied by means of corrosion potential measurements and cyclic voltammetry, under static and dynamic conditions. The lower corrosion resistance of the brass in comparison to pure Cu, was attributed to the anodic layer structure consisting of a complex ZnO.x H2O /Cu2O-CuO layer, which is less protective than the Cu2O-CuO passive layer produced onto Cu. No selective dissolution of Zn was detected at both alloys, being their electrodissolution rate higher than that of pure Cu and smaller than that of pure Zn.
publishDate 2000
dc.date.none.fl_str_mv 2000-08-01
dc.type.driver.fl_str_mv 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://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000400011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532000000400011
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 Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.11 n.4 2000
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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