Electrochemical behaviour of Ti alloys containing Mo and Ta as β-stabilizer elements for dental application

Corrosion behaviour of the studied Ti12Mo and Ti60Ta alloys with the same Mo equivalent values (12%, mass fraction) together with the currently used metallic biomaterials Cp-Ti were investigated for dental applications. The electrochemical properties of the samples were examined using electrochemica...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2013-12, Vol.23 (12), p.3829-3836
Main Authors: MARECI, Daniel, CHELARIU, Romeu, BOLAT, Georgiana, CAILEAN, Adrian, GRANCEA, Viorel, SUTIMAN, Daniel
Format: Article
Language:English
Subjects:
Alloys
Cp-Ti
Dental alloys
Dental materials
Electrochemical impedance spectroscopy
Fluorides
Media
open-circuit potential
potentiodynamic polarization
Saliva
Ti12Mo
Ti60Ta
Titanium base alloys
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Summary:Corrosion behaviour of the studied Ti12Mo and Ti60Ta alloys with the same Mo equivalent values (12%, mass fraction) together with the currently used metallic biomaterials Cp-Ti were investigated for dental applications. The electrochemical properties of the samples were examined using electrochemical techniques: such as open-circuit potential, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS), in two electrochemical media of artificial saliva and fluoridated artificial saliva (0.1% fluoride ions, F−) at 37 °C. Fluoride is commonly included in toothpastes, odontological gels and dental rinses to prevent dental caries and relieve dental sensitivity. The passive behaviour for all the titanium samples is observed for both solutions. The Ti60Ta alloy appears to possess superior corrosion resistance than the Ti12Mo and Cp-Ti in both electrochemical media.
ISSN:1003-6326
DOI:10.1016/S1003-6326(13)62936-2