Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies
Autor(a) principal: | |
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Data de Publicação: | 2004 |
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=S0103-50532004000400005 |
Resumo: | Colored oxide films were grown on AISI-304 stainless-steel samples by chemical and electrochemical methods using different coloring times. The electrochemical methods involved the use of alternating potential pulses and triangular current scans. The colored films were characterized in the visible region by reflectance spectrophotometry. Pitting corrosion resistance of the different colored steel samples was evaluated at 25 ºC in 0.62 mol L-1 NaCl, using potentiodynamic polarization curves, and in 0.4 mol L-1 HCl, by electrochemical impedance spectroscopy. Independently of the coloring method used, the colored oxide films showed a protective effect against pitting corrosion only in the first hours of exposition. For longer exposition times (8-10 h) the colored and non-colored steel samples presented similar behaviors. |
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Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studiesAISI-304 stainless steelcolored oxide filmssteel coloring methodspitting corrosionColored oxide films were grown on AISI-304 stainless-steel samples by chemical and electrochemical methods using different coloring times. The electrochemical methods involved the use of alternating potential pulses and triangular current scans. The colored films were characterized in the visible region by reflectance spectrophotometry. Pitting corrosion resistance of the different colored steel samples was evaluated at 25 ºC in 0.62 mol L-1 NaCl, using potentiodynamic polarization curves, and in 0.4 mol L-1 HCl, by electrochemical impedance spectroscopy. Independently of the coloring method used, the colored oxide films showed a protective effect against pitting corrosion only in the first hours of exposition. For longer exposition times (8-10 h) the colored and non-colored steel samples presented similar behaviors.Sociedade Brasileira de Química2004-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400005Journal of the Brazilian Chemical Society v.15 n.4 2004reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532004000400005info:eu-repo/semantics/openAccessKikuti,ElaineConrrado,RosangelaBocchi,NerilsoBiaggio,Sonia R.Rocha-Filho,Romeu C.eng2004-09-15T00:00:00Zoai:scielo:S0103-50532004000400005Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2004-09-15T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies |
title |
Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies |
spellingShingle |
Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies Kikuti,Elaine AISI-304 stainless steel colored oxide films steel coloring methods pitting corrosion |
title_short |
Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies |
title_full |
Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies |
title_fullStr |
Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies |
title_full_unstemmed |
Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies |
title_sort |
Chemical and electrochemical coloration of stainless steel and pitting corrosion resistance studies |
author |
Kikuti,Elaine |
author_facet |
Kikuti,Elaine Conrrado,Rosangela Bocchi,Nerilso Biaggio,Sonia R. Rocha-Filho,Romeu C. |
author_role |
author |
author2 |
Conrrado,Rosangela Bocchi,Nerilso Biaggio,Sonia R. Rocha-Filho,Romeu C. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Kikuti,Elaine Conrrado,Rosangela Bocchi,Nerilso Biaggio,Sonia R. Rocha-Filho,Romeu C. |
dc.subject.por.fl_str_mv |
AISI-304 stainless steel colored oxide films steel coloring methods pitting corrosion |
topic |
AISI-304 stainless steel colored oxide films steel coloring methods pitting corrosion |
description |
Colored oxide films were grown on AISI-304 stainless-steel samples by chemical and electrochemical methods using different coloring times. The electrochemical methods involved the use of alternating potential pulses and triangular current scans. The colored films were characterized in the visible region by reflectance spectrophotometry. Pitting corrosion resistance of the different colored steel samples was evaluated at 25 ºC in 0.62 mol L-1 NaCl, using potentiodynamic polarization curves, and in 0.4 mol L-1 HCl, by electrochemical impedance spectroscopy. Independently of the coloring method used, the colored oxide films showed a protective effect against pitting corrosion only in the first hours of exposition. For longer exposition times (8-10 h) the colored and non-colored steel samples presented similar behaviors. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-08-01 |
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=S0103-50532004000400005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532004000400005 |
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.15 n.4 2004 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_ |
1750318165753069568 |