Structural and electrochemical examinations of PACVD TiO2 films in Ringer solution

Głuzek, J.; Masalski, J.; Furman, P.; Nitsch, K.

doi:10.1016/s0142-9612(96)00210-4

Cited by 35 publications

(19 citation statements)

References 9 publications

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“…During the first moments of immersion, an abrupt E OC displacement towards positive potentials was noticed in figure 2 during a period of 1-2 h. This initial increase seems to be related to the formation and thickening of the oxide film on the metallic surface, improving its corrosion protection ability [15][16][17][18] . Afterwards, the E OC increases slowly suggesting the growth of the film onto the metallic surface.…”

Section: 5 5 S Se Em M a An Nd D X Xr Rd D S St Tu Ud Di Ie Es Smentioning

confidence: 99%

Effect of replacement of vanadium by iron on the electrochemical behaviour of titanium alloys in simulated physiological media

Mareci¹,

Lucero²,

Mirza³

2009

Rev. metal.

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E Ef ff fe ec ct t o of f r re ep pl la ac ce em me en nt t o of f v va an na ad di iu um m b by y i ir ro on n o on n t th he e e el le ec ct tr ro oc ch he em mi ic ca al l b be eh ha av vi io ou ur r o of f t ti it ta an ni iu um m a al ll lo oy ys s i in n s si im mu ul la at te ed d p ph hy ys si io ol lo og gi ic ca al l m me ed di ia a ( (• •) ) D. Mareci*, V. Lucero** and J. Mirza** A Ab bs st tr ra ac ct tThe electrochemical behaviour of Ti6Al4V, Ti6Al3.5Fe and Ti5Al2.5Fe alloys has been evaluated in Ringer's solution at 25 °C. The effect of the substitution of vanadium in Ti6Al4V alloy has been specifically addressed. The evaluation of the corrosion resistance was carried out through the analysis of the open circuit potential variation with time, potentiodynamic polarization curves, and electrochemical impedance spectroscopy (EIS) tests. Very low current densities were obtained (order of nA/cm 2 ) from the polarization curves and EIS, indicating a typical passive behaviour for all investigated alloys. The EIS results exhibited relative capacitive behaviour (large corrosion resistance) with phase angle close to -80° and relative high impedance values (order of 105 Ω·cm2) at low and medium frequencies, which are indicative of the formation of a highly stable film on these alloys in Ringer's solution. In conclusion, the electrochemical behaviour of Ti6Al4V is not affected by the substitution of vanadium with iron.

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Section: 5 5 S Se Em M a An Nd D X Xr Rd D S St Tu Ud Di Ie Es Smentioning

confidence: 99%

Effect of replacement of vanadium by iron on the electrochemical behaviour of titanium alloys in simulated physiological media

Mareci¹,

Lucero²,

Mirza³

2009

Rev. metal.

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“…The corrosion tests of implant materials may be carried out both in highly corrosive media such as 3.5% (w/w) or 0.9% (w/w) NaCl, 0.1 M HCl or 0.1 M H 2 SO 4 and in media simulating biological electrolytes such as Ringer [4,5], Hank [6,7] and Tyrode [8] solutions or artificial saliva [9] at body temperature of 37°C as specified in ASTM F 2129.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical corrosion properties of metal alloys used in orthopaedic implants

et al. 2009

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This study concerns an investigation of the corrosion behavior of 316 stainless steel, CoCrMo and Ti6Al4V alloys in simulated body conditions (ringer lactate) at 37°C by the use of Tafel plots, mixed potential and electrochemical impedance spectroscopy (EIS). Ti6Al4V alloy has the highest corrosion resistance followed by CoCr alloy. Ti6Al4V-CoCrMO was the best couple for galvanic corrosion with the minimum galvanic potential and current values according to mixed potential theory and Tafel method. It was concluded that Ti6Al4V was the most suitable material for implant applications in the human body.

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“…Ti-6Al-7Nb 118.1 0.29 9 10 3 1.33 9 10 -4 0.90 6.95 9 10 3 1. passive films [70,73,77]. The impedance of the CPE is given by Z CPE = [C(jx) n ] -1 , where C is the capacitance associated to an ideal capacitor, x is the angular frequency and 1 B n B 1.…”

Section: Resultsmentioning

confidence: 99%

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

Rosalbino

Delsante

Borzone

et al. 2012

J Mater Sci: Mater Med

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Titanium alloys exhibit excellent corrosion resistance in most aqueous media due to the formation of a stable oxide film, and some of these alloys (particularly Ti-6Al-7Nb) have been chosen for surgical and odontological implants for their resistance and biocompatibility. Treatment with fluorides (F(-)) is known to be the main method for preventing plaque formation and dental caries. Toothpastes, mouthwashes, and prophylactic gels can contain from 200 to 20,000 ppm F(-) and can affect the corrosion behaviour of titanium alloy devices present in the oral cavity. In this work, the electrochemical corrosion behaviour of Ti-1M alloys (M = Ag, Au, Pd, Pt) was assessed in artificial saliva of pH = 3.0 containing 910 ppm F(-) (0.05 M NaF) through open circuit potential, E(OC), and electrochemical impedance spectroscopy (EIS) measurements. The corrosion behaviour of the Ti-6Al-7Nb commercial alloy was also evaluated for comparison. E (OC) measurements show an active behaviour for all the titanium alloys in fluoridated acidified saliva due to the presence of significant concentrations of HF and HF(2) (-) species that dissolve the spontaneous air-formed oxide film giving rise to surface activation. However, an increase in stability of the passive oxide layer and consequently a decrease in surface activation is observed for the Ti-1M alloys. This behaviour is confirmed by EIS measurements. In fact, the Ti-6Al-7Nb alloy exhibits lower impedance values as compared with Ti-1M alloys, the highest values being measured for the Ti-1Au alloy. The experimental results show that the corrosion resistance of the studied Ti-1M alloys is similar to or better than that of Ti-6Al-7Nb alloy currently used as biomaterial, suggesting their potential for dental applications.

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Structural and electrochemical examinations of PACVD TiO2 films in Ringer solution

Cited by 35 publications

References 9 publications

Effect of replacement of vanadium by iron on the electrochemical behaviour of titanium alloys in simulated physiological media

Effect of replacement of vanadium by iron on the electrochemical behaviour of titanium alloys in simulated physiological media

Electrochemical corrosion properties of metal alloys used in orthopaedic implants

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

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