Literature DB >> 15338591

Electrochemical impedance spectroscopy characterization of passive film formed on implant Ti-6Al-7Nb alloy in Hank's solution.

I C Lavos-Valereto1, S Wolynec, I Ramires, A C Guastaldi, I Costa.   

Abstract

The influence of potential on electrochemical behavior of Ti-6Al-7Nb alloy under simulated physiological conditions was investigated by electrochemical impedance spectroscopy (EIS). The experimental results were compared with those obtained by potentiodynamic polarization curves. All measurements were carried out in Hank's aerated solution at 25 degrees C, at pH 7.8 and at different potentials (corrosion potential, 0 mV(SCE), 1000 mV(SCE), and 2000 mV(SCE)). The EIS spectra exhibited a two-step or a two-time constant system, suggesting the formation of a two-layer oxide film on the metal surface. The high corrosion resistance, displayed by this alloy in electrochemical polarization tests, is due to the dense inner layer, while its osseointegration ability can be ascribed to the presence of the outer porous layer.

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Year:  2004        PMID： 15338591     DOI： 10.1023/b:jmsm.0000010097.86245.74

Source DB:  PubMed          Journal:  J Mater Sci Mater Med        ISSN： 0957-4530            Impact factor:   3.896


  7 in total

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6.  The electrochemical behavior of Ti-6Al-7Nb alloy with and without plasma-sprayed hydroxyapatite coating in Hank's solution.

Authors:  I C Lavos-Valereto; I Costa; S Wolynec
Journal:  J Biomed Mater Res       Date:  2002

7.  Electrochemical and XPS studies of titanium for biomaterial applications with respect to the effect of hydrogen peroxide.

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  7 in total
  18 in total

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5.  Influence of noble metals alloying additions on the corrosion behaviour of titanium in a fluoride-containing environment.

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6.  The effect of hyaluronic acid on the corrosion of an orthopedic CoCrMo-alloy in simulated inflammatory conditions.

Authors:  S Radice; J Yao; J Babauta; M P Laurent; M A Wimmer
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7.  Corrosion behaviour of β-Ti20Mo alloy in artificial saliva.

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8.  An electrochemical impedance investigation of the behaviour of anodically oxidised titanium in human plasma and cognate fluids, relevant to dental applications.

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10.  Testing the Test: A Comparative Study of Marine Microbial Corrosion under Laboratory and Field Conditions.

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Journal:  ACS Omega       Date:  2021-05-10
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