Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel

Detalhes bibliográficos
Autor(a) principal: Anjos-Moraes,Juliana dos
Data de Publicação: 2019
Outros Autores: Giacobbo,Alexandre, Sánchez-Tovar,Rita, García,Rafael Leiva, García-Antón,Jose, Ferreira,Jane Zoppas
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000500203
Resumo: This study investigated a conversion coating based on hexafluorozirconic acid solution on cold-rolled (AISI 1006) steel sheets, in situ, at different pH values and immersion times. Electrochemical characterization was carried out by electrochemical impedance spectroscopy (EIS) with hexafluorozirconic acid bath as the electrolyte. Laser scanning confocal microscopy (LSCM) was used to evaluate the morphology of the coating in situ, i.e., during the coating formation. According to the results, the polarization resistance (Rp) of the conversion coating is affected by the immersion time and by the pH of the conversion bath. The electrochemical analyzes point out conversion baths at pH between 3.5 and 4.5 and immersion times from 600 to 900 s as optimal operating conditions, achieving an average polarization resistance of 713 ± 107 Ω cm2.
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spelling Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 SteelZirconium Conversion CoatingPolarizationCold Rolled SteelEISThis study investigated a conversion coating based on hexafluorozirconic acid solution on cold-rolled (AISI 1006) steel sheets, in situ, at different pH values and immersion times. Electrochemical characterization was carried out by electrochemical impedance spectroscopy (EIS) with hexafluorozirconic acid bath as the electrolyte. Laser scanning confocal microscopy (LSCM) was used to evaluate the morphology of the coating in situ, i.e., during the coating formation. According to the results, the polarization resistance (Rp) of the conversion coating is affected by the immersion time and by the pH of the conversion bath. The electrochemical analyzes point out conversion baths at pH between 3.5 and 4.5 and immersion times from 600 to 900 s as optimal operating conditions, achieving an average polarization resistance of 713 ± 107 Ω cm2.ABM, ABC, ABPol2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000500203Materials Research v.22 n.5 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0322info:eu-repo/semantics/openAccessAnjos-Moraes,Juliana dosGiacobbo,AlexandreSánchez-Tovar,RitaGarcía,Rafael LeivaGarcía-Antón,JoseFerreira,Jane Zoppaseng2019-09-10T00:00:00Zoai:scielo:S1516-14392019000500203Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2019-09-10T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel
title Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel
spellingShingle Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel
Anjos-Moraes,Juliana dos
Zirconium Conversion Coating
Polarization
Cold Rolled Steel
EIS
title_short Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel
title_full Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel
title_fullStr Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel
title_full_unstemmed Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel
title_sort Electrochemical Behavior During the Zirconium Conversion Coating Formation on AISI 1006 Steel
author Anjos-Moraes,Juliana dos
author_facet Anjos-Moraes,Juliana dos
Giacobbo,Alexandre
Sánchez-Tovar,Rita
García,Rafael Leiva
García-Antón,Jose
Ferreira,Jane Zoppas
author_role author
author2 Giacobbo,Alexandre
Sánchez-Tovar,Rita
García,Rafael Leiva
García-Antón,Jose
Ferreira,Jane Zoppas
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Anjos-Moraes,Juliana dos
Giacobbo,Alexandre
Sánchez-Tovar,Rita
García,Rafael Leiva
García-Antón,Jose
Ferreira,Jane Zoppas
dc.subject.por.fl_str_mv Zirconium Conversion Coating
Polarization
Cold Rolled Steel
EIS
topic Zirconium Conversion Coating
Polarization
Cold Rolled Steel
EIS
description This study investigated a conversion coating based on hexafluorozirconic acid solution on cold-rolled (AISI 1006) steel sheets, in situ, at different pH values and immersion times. Electrochemical characterization was carried out by electrochemical impedance spectroscopy (EIS) with hexafluorozirconic acid bath as the electrolyte. Laser scanning confocal microscopy (LSCM) was used to evaluate the morphology of the coating in situ, i.e., during the coating formation. According to the results, the polarization resistance (Rp) of the conversion coating is affected by the immersion time and by the pH of the conversion bath. The electrochemical analyzes point out conversion baths at pH between 3.5 and 4.5 and immersion times from 600 to 900 s as optimal operating conditions, achieving an average polarization resistance of 713 ± 107 Ω cm2.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
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=S1516-14392019000500203
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000500203
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2018-0322
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.22 n.5 2019
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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