Table 1.
Chemical composition (wt.%) of the Ti-6Al-4V alloy used in this study.
Fig 1.
Schematic illustration of the three-electrode electrochemical cell used in this study.
Fig 2.
Electrochemical results of Ti-6Al-4V alloy in PBS solution (pH 3) (A) Open circuit potential (E) variation with time of immersion and electrochemical impedance spectroscopy (EIS) as (B) Nyquist and (C) Bode phase angle diagrams in deaerated or naturally aerated solutions.
Fig 3.
Electrochemical results of Ti-6Al-4V alloy in deaerated PBS solution (pH 3) (A) Open circuit potential (E) variation with time of immersion and electrochemical impedance spectroscopy (EIS) as (B) Nyquist and (C) Bode phase angle diagrams in solutions without 1 wt. % H2O2 or with 1 wt. % H2O2.
Fig 4.
Electrochemical results of Ti-6Al-4V alloy in deaerated PBS solution (pH 3) (A) Open circuit potential (E) variation with time of immersion and electrochemical impedance spectroscopy (EIS) as (B) Nyquist and (C) Bode phase angle diagrams in solutions with 1wt. % H2O2 without BSA or with 1 wt. % H2O2 and 1 wt.% BSA.
Fig 5.
Anodic polarization curves of Ti-6Al-4V alloy in aerated PBS solution (pH 3), deaerated PBS solution (pH 3), deaerated PBS solution with 1 wt. % of hydrogen peroxide and deaerated PBS solution with 1 wt.% of hydrogen peroxide and 1 wt.% BSA.
Fig 6.
SEM images of Ti-6Al-4V sample as received and unexposed to the test solution (A), after polarization in PBS solution (pH 3) with 1 wt. % BSA and 1 wt. % of hydrogen peroxide, under naturally aerated condition (B) and same as (B) in deaerated condition (C).