Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , |
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=S0103-50532013000800005 |
Resumo: | The composition of the oxide layers formed in stainless steels is fundamental in the corrosion behavior of these materials. Its characterization has been widely studied, but still many questions arise, especially mechanisms of oxide growth and changes in its composition during the film development. This work aimed to study the chemical composition and electrochemical behavior of these films formed in different conditions of substrates de AISI 316L. The work investigated the effect of the number of cycles, scan rate, electrolyte composition and pH in the electrochemical response of the formed oxides. The increase of the scan rate promoted the formation of thinner films, richer in Fe3+ species, mainly hydroxide, with decreased conductivity. The study revealed a pH-dependent film composition, films formed in near neutral solutions presented higher resistivity and higher content of Fe species and traces of Mo compared to films formed in alkaline medium. |
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Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterizationcyclic sweep voltammetry (CSV)impedance (EIS)oxide filmstainless steelThe composition of the oxide layers formed in stainless steels is fundamental in the corrosion behavior of these materials. Its characterization has been widely studied, but still many questions arise, especially mechanisms of oxide growth and changes in its composition during the film development. This work aimed to study the chemical composition and electrochemical behavior of these films formed in different conditions of substrates de AISI 316L. The work investigated the effect of the number of cycles, scan rate, electrolyte composition and pH in the electrochemical response of the formed oxides. The increase of the scan rate promoted the formation of thinner films, richer in Fe3+ species, mainly hydroxide, with decreased conductivity. The study revealed a pH-dependent film composition, films formed in near neutral solutions presented higher resistivity and higher content of Fe species and traces of Mo compared to films formed in alkaline medium.Sociedade Brasileira de Química2013-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000800005Journal of the Brazilian Chemical Society v.24 n.8 2013reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20130158info:eu-repo/semantics/openAccessDíaz,BelénFreire,LorenaMontemor,Maria FátimaNóvoa,Xosé Ramóneng2015-07-21T00:00:00Zoai:scielo:S0103-50532013000800005Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2015-07-21T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization |
title |
Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization |
spellingShingle |
Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization Díaz,Belén cyclic sweep voltammetry (CSV) impedance (EIS) oxide film stainless steel |
title_short |
Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization |
title_full |
Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization |
title_fullStr |
Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization |
title_full_unstemmed |
Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization |
title_sort |
Oxide film growth by CSV on AISI 316L: a combined electrochemical and analytical characterization |
author |
Díaz,Belén |
author_facet |
Díaz,Belén Freire,Lorena Montemor,Maria Fátima Nóvoa,Xosé Ramón |
author_role |
author |
author2 |
Freire,Lorena Montemor,Maria Fátima Nóvoa,Xosé Ramón |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Díaz,Belén Freire,Lorena Montemor,Maria Fátima Nóvoa,Xosé Ramón |
dc.subject.por.fl_str_mv |
cyclic sweep voltammetry (CSV) impedance (EIS) oxide film stainless steel |
topic |
cyclic sweep voltammetry (CSV) impedance (EIS) oxide film stainless steel |
description |
The composition of the oxide layers formed in stainless steels is fundamental in the corrosion behavior of these materials. Its characterization has been widely studied, but still many questions arise, especially mechanisms of oxide growth and changes in its composition during the film development. This work aimed to study the chemical composition and electrochemical behavior of these films formed in different conditions of substrates de AISI 316L. The work investigated the effect of the number of cycles, scan rate, electrolyte composition and pH in the electrochemical response of the formed oxides. The increase of the scan rate promoted the formation of thinner films, richer in Fe3+ species, mainly hydroxide, with decreased conductivity. The study revealed a pH-dependent film composition, films formed in near neutral solutions presented higher resistivity and higher content of Fe species and traces of Mo compared to films formed in alkaline medium. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-08-01 |
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=S0103-50532013000800005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000800005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20130158 |
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.24 n.8 2013 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 |
_version_ |
1750318175231148032 |