Effect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum

Detalhes bibliográficos
Autor(a) principal: Schmidt, Anelise Marlene
Data de Publicação: 2003
Outros Autores: Azambuja, Denise Schermann
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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spelling 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
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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
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000377710
url http://hdl.handle.net/10183/19677
dc.language.iso.fl_str_mv eng
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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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