Effects of pH on the electrochemical behaviour of titanium alloys for implant applications.
J Mater Sci Mater Med
; 20(2): 549-52, 2009 Feb.
Article
em En
| MEDLINE
| ID: mdl-18987951
The electrochemical behaviour of two commercial titanium alloys Ti-6Al-4 V (ASTM F136) and Ti-13Nb-13Zr (ASTM F1713) was investigated in Ringer physiological solution at two pH values (5.5 and 7.0). The corrosion properties were examined by using electrochemical techniques: Potentiodynamic anodic polarization, cyclic polarization and electrochemical impedance spectroscopy (EIS). The electrochemical corrosion properties of both alloys at different conditions were measured in terms of corrosion potential (E (corr)), corrosion current density (i (corr)) and passivation current density (i (pass)). Equivalent electrical circuits were used to modulate EIS data, in order to characterize alloys surface and better understanding the pH effect on the interface alloy/solution.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Próteses e Implantes
/
Titânio
/
Materiais Biocompatíveis
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Teste de Materiais
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Eletroquímica
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Modelos Químicos
Idioma:
En
Revista:
J Mater Sci Mater Med
Assunto da revista:
ENGENHARIA BIOMEDICA
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Estados Unidos