dc.creatorSchmidt, Anelise Marlene
dc.creatorAzambuja, Denise Schermann
dc.date2010-04-16T09:11:10Z
dc.date2003
dc.identifier1516-1439
dc.identifierhttp://hdl.handle.net/10183/19677
dc.identifier000377710
dc.descriptionThe 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.
dc.formatapplication/pdf
dc.languageeng
dc.relationMaterials research : ibero-american journal of materials. São Carlos, SP. Vol. 6, n. 2 (2003), p. 227-231
dc.rightsOpen Access
dc.subjectTitanium alloy
dc.subjectSerum
dc.subjectFluoride
dc.subjectTitanio : Ligas
dc.subjectCorrosão
dc.subjectPassivacao
dc.titleEffect of fluoride ions on Ti6Al14V alloy passivation in lactated ringer's serum
dc.typeArtigo de periódico
dc.typeNacional


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