Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride

Detalhes bibliográficos
Autor(a) principal: Azambuja,Denise S.
Data de Publicação: 2003
Outros Autores: Martini,Emilse M. A., Müller,Iduvirges L.
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=S0103-50532003000400013
Resumo: The corrosion behavior of iron and AISI 304 stainless steel in aqueous tungstate solutions containing chloride ion was investigated by cyclic voltammetry, open circuit measurements and impedance spectroscopy. The obtained results point out that the inhibitive performance of tungstate depends on the presence of dissolved oxygen, being strongly related to the adsorption of this anion on the surface of the electrode. Under anodic polarization, at low sweep rate and electrode rotation the passive film is more stable and the corrosion rate decreases. At the open circuit potential, the EIS data have clearly demonstrated that for longer immersion times the tungstate inhibitive action is considerably improved.
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spelling Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloridetungstateironstainless steelpittingThe corrosion behavior of iron and AISI 304 stainless steel in aqueous tungstate solutions containing chloride ion was investigated by cyclic voltammetry, open circuit measurements and impedance spectroscopy. The obtained results point out that the inhibitive performance of tungstate depends on the presence of dissolved oxygen, being strongly related to the adsorption of this anion on the surface of the electrode. Under anodic polarization, at low sweep rate and electrode rotation the passive film is more stable and the corrosion rate decreases. At the open circuit potential, the EIS data have clearly demonstrated that for longer immersion times the tungstate inhibitive action is considerably improved.Sociedade Brasileira de Química2003-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532003000400013Journal of the Brazilian Chemical Society v.14 n.4 2003reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532003000400013info:eu-repo/semantics/openAccessAzambuja,Denise S.Martini,Emilse M. A.Müller,Iduvirges L.eng2003-09-15T00:00:00Zoai:scielo:S0103-50532003000400013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2003-09-15T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride
title Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride
spellingShingle Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride
Azambuja,Denise S.
tungstate
iron
stainless steel
pitting
title_short Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride
title_full Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride
title_fullStr Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride
title_full_unstemmed Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride
title_sort Corrosion behaviour of iron and AISI 304 stainless steel in tungstate aqueous solutions containing chloride
author Azambuja,Denise S.
author_facet Azambuja,Denise S.
Martini,Emilse M. A.
Müller,Iduvirges L.
author_role author
author2 Martini,Emilse M. A.
Müller,Iduvirges L.
author2_role author
author
dc.contributor.author.fl_str_mv Azambuja,Denise S.
Martini,Emilse M. A.
Müller,Iduvirges L.
dc.subject.por.fl_str_mv tungstate
iron
stainless steel
pitting
topic tungstate
iron
stainless steel
pitting
description The corrosion behavior of iron and AISI 304 stainless steel in aqueous tungstate solutions containing chloride ion was investigated by cyclic voltammetry, open circuit measurements and impedance spectroscopy. The obtained results point out that the inhibitive performance of tungstate depends on the presence of dissolved oxygen, being strongly related to the adsorption of this anion on the surface of the electrode. Under anodic polarization, at low sweep rate and electrode rotation the passive film is more stable and the corrosion rate decreases. At the open circuit potential, the EIS data have clearly demonstrated that for longer immersion times the tungstate inhibitive action is considerably improved.
publishDate 2003
dc.date.none.fl_str_mv 2003-08-01
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=S0103-50532003000400013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532003000400013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532003000400013
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.14 n.4 2003
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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