Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/19677 |
Resumo: | The corrosive behavior of Ti and its alloys in fluoride media is well known. Based on electrochemical studies, this paper describes the effect of fluoride ions on the passive behavior of Ti6Al4V alloy in lactated Ringer’s serum. The open circuit potential of the alloy in the serum, which lies in the passive region of TiO2, shifts to more negative values as fluoride ions are added. The voltammogram obtained in the serum presents an active-passive behavior close to -0.2 V (SCE) that changes with the presence of fluoride ions, evidencing higher anodic currents. Electrochemical impedance spectroscopy plots obtained at OCP after varying immersion times in the serum display an almost capacitive behavior and the polarization resistance becomes enhanced after 7 days. With the addition of fluoride ions, the film’s resistance decreases, but a stable protective layer develops after 7 days of immersion time, indicating the film’s repair. |
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Schmidt, Anelise MarleneAzambuja, Denise Schermann2010-04-16T09:11:10Z20031516-1439http://hdl.handle.net/10183/19677000377710The corrosive behavior of Ti and its alloys in fluoride media is well known. Based on electrochemical studies, this paper describes the effect of fluoride ions on the passive behavior of Ti6Al4V alloy in lactated Ringer’s serum. The open circuit potential of the alloy in the serum, which lies in the passive region of TiO2, shifts to more negative values as fluoride ions are added. The voltammogram obtained in the serum presents an active-passive behavior close to -0.2 V (SCE) that changes with the presence of fluoride ions, evidencing higher anodic currents. Electrochemical impedance spectroscopy plots obtained at OCP after varying immersion times in the serum display an almost capacitive behavior and the polarization resistance becomes enhanced after 7 days. With the addition of fluoride ions, the film’s resistance decreases, but a stable protective layer develops after 7 days of immersion time, indicating the film’s repair.application/pdfengMaterials research : ibero-american journal of materials. São Carlos, SP. Vol. 6, n. 2 (2003), p. 227-231Titanio : LigasCorrosãoPassivacaoTitanium alloySerumFluorideEffect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's seruminfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000377710.pdf000377710.pdfTexto completo (inglês)application/pdf551233http://www.lume.ufrgs.br/bitstream/10183/19677/1/000377710.pdf4113fa21dd1b2922ba7958c1158b25ddMD51TEXT000377710.pdf.txt000377710.pdf.txtExtracted Texttext/plain18489http://www.lume.ufrgs.br/bitstream/10183/19677/2/000377710.pdf.txtab1f4b6748b9750cec85c3f85a46f8caMD52THUMBNAIL000377710.pdf.jpg000377710.pdf.jpgGenerated Thumbnailimage/jpeg1663http://www.lume.ufrgs.br/bitstream/10183/19677/3/000377710.pdf.jpg8453267fac7046e38b89f8d16f58ed9bMD5310183/196772021-06-26 04:41:05.001546oai:www.lume.ufrgs.br:10183/19677Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-06-26T07:41:05Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum |
title |
Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum |
spellingShingle |
Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum Schmidt, Anelise Marlene Titanio : Ligas Corrosão Passivacao Titanium alloy Serum Fluoride |
title_short |
Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum |
title_full |
Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum |
title_fullStr |
Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum |
title_full_unstemmed |
Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum |
title_sort |
Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum |
author |
Schmidt, Anelise Marlene |
author_facet |
Schmidt, Anelise Marlene Azambuja, Denise Schermann |
author_role |
author |
author2 |
Azambuja, Denise Schermann |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Schmidt, Anelise Marlene Azambuja, Denise Schermann |
dc.subject.por.fl_str_mv |
Titanio : Ligas Corrosão Passivacao |
topic |
Titanio : Ligas Corrosão Passivacao Titanium alloy Serum Fluoride |
dc.subject.eng.fl_str_mv |
Titanium alloy Serum Fluoride |
description |
The corrosive behavior of Ti and its alloys in fluoride media is well known. Based on electrochemical studies, this paper describes the effect of fluoride ions on the passive behavior of Ti6Al4V alloy in lactated Ringer’s serum. The open circuit potential of the alloy in the serum, which lies in the passive region of TiO2, shifts to more negative values as fluoride ions are added. The voltammogram obtained in the serum presents an active-passive behavior close to -0.2 V (SCE) that changes with the presence of fluoride ions, evidencing higher anodic currents. Electrochemical impedance spectroscopy plots obtained at OCP after varying immersion times in the serum display an almost capacitive behavior and the polarization resistance becomes enhanced after 7 days. With the addition of fluoride ions, the film’s resistance decreases, but a stable protective layer develops after 7 days of immersion time, indicating the film’s repair. |
publishDate |
2003 |
dc.date.issued.fl_str_mv |
2003 |
dc.date.accessioned.fl_str_mv |
2010-04-16T09:11:10Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/19677 |
dc.identifier.issn.pt_BR.fl_str_mv |
1516-1439 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000377710 |
identifier_str_mv |
1516-1439 000377710 |
url |
http://hdl.handle.net/10183/19677 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Materials research : ibero-american journal of materials. São Carlos, SP. Vol. 6, n. 2 (2003), p. 227-231 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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