Comparative corrosion study of Ti–Ta alloys for dental applications

Mareci, Daniel; Chelariu, R.; Gordin, D.M.; Ungureanu, Gina; Gloriant, T.

doi:10.1016/j.actbio.2009.05.037

Cited by 209 publications

(136 citation statements)

References 64 publications

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“…Trillo et al [19] have reported a comparable corrosion resistance of alloys Ti--40Ta, Ti50Ta and Ti6Al4V in a model body environment, based on potentiodynamic measurements. Corrosion behavior of alloys Ti 1−x Ta x (x = 30, 40, 50 and 60 wt.%) in an environment of model saliva with fluoride ions added has been evaluated by Mareci et al [20]. Both in non-modified and acid saliva, alloys with tantalum exhibited corrosion resistance which was comparable with that of the reference Ti6Al7Nb alloy.…”

Section: Introductionmentioning

confidence: 66%

“…These properties predetermine titanium as a first-choice metallic material in medical applications, yet it is not an ideal material. The main reason is that its Young's modulus is higher approximately by order of magnitude than that of cortical bone (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)). This is why current research in the field of metallic biomaterials focuses on the development of materials with a lower elasticity modulus.…”

Section: Introductionmentioning

confidence: 99%

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Tantalum effect on the corrosion behavior of titanium-tantalum alloys in an environment containing fluoride ions

Fojt¹,

Joska²,

Hnilica³

2013

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Titanium exhibits high corrosion resistance in biological environments. The main objective of its alloying with beta-stabilizing elements is to decrease modulus of elasticity. It is important to preserve corrosion resistance. The presented study was aimed at corrosion properties of Ti15Ta and Ti30Ta alloys in comparison with titanium. Measurements were performed on titanium, both alloys and tantalum in the physiological solution without or with fluoride ions. Electrochemical study was based on electrochemical impedance spectroscopy. Corrosion behavior of the studied alloys was significantly influenced by titanium. In the physiological solution, both alloys displayed stable passivity. Titanium is highly sensitive to the presence of fluoride ions. Its alloying with tantalum had a positive effect under the given conditions, which applied particularly to the Ti30Ta alloy. Titanium-tantalum binary alloys are not considered for direct use, yet the knowledge of their behavior may contribute to a more rational design of alloy systems applicable in dental practice.K e y w o r d s : Ti-Ta alloys, corrosion, fluoride ions, surface analysis, impedance spectroscopy

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Section: Introductionmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Tantalum effect on the corrosion behavior of titanium-tantalum alloys in an environment containing fluoride ions

Fojt¹,

Joska²,

Hnilica³

2013

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“…This behaviour is typical of titanium alloys in chloride solutions. These differences are explained by the depassivation phenomenon and by the chemical composition changes on the surface during the cathodic scanning that are due to the potentiodynamic tests beginning at a potential of E OCP − 200 mV, which decrease the E OCP values with respect to the corrosion potential [58]. The results from the potentiodynamic measurements are presented in Fig.…”

Section: Electrochemical Characteristics Of Selected Samples In Ringementioning

confidence: 81%

Modification of a Ti–Mo alloy surface via plasma electrolytic oxidation in a solution containing calcium and phosphorus

Simka

Krząkała

Korotin

et al. 2013

Electrochimica Acta

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a b s t r a c tInvestigations into the surface modification of a Ti-15Mo alloy via plasma electrolytic oxidation are reported. The oxidation process was conducted in a solution containing Ca(H 2 PO 2 ) 2 , H 3 PO 4 , or (HCOO) 2 Ca. Anodisation was performed at voltages in the range of 100-400 V. The morphology of the sample surface did not change during alloy oxidation at lower voltages. Higher voltages led to the incorporation of calcium and phosphorus or of calcium only into the formed oxide layer and to significant modification of the surface morphology. Based on the SEM and EDX analysis results, a set of samples was selected for further investigations. To study the surface of the Ti-Mo alloy after anodic oxidation, we used scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), thin-layer X-ray diffraction (TL-XRD), and X-ray photoelectron spectroscopy (XPS). The electrochemical characteristics of the modified alloy in Ringer's solution were determined. Anodisation results in a considerable increase in the corrosion resistance of the Ti-15Mo alloy.

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“…The passive current density was around 1.3 x 10 -5 A/cm² in both conditions indicating formation and growth of a stable oxide on the alloy. The current density in the passive region of Ti30Ta alloy was lower when compared to the other materials used for the manufacture of implants, as pure titanium 21,22 , that it has a passive current density around 1.66 x 10 -4 A/ cm², Figure 4, indicating that the oxide films formed on the surface, Ta 2 O 5 , is more corrosion resistant 11,23 . In Figure 3, it is possible to observe that the start of the dissolution of Ta 2 O 5 oxide occurs in the potential above 2.5 V due to the stronger and more stable passive film.…”

Section: Figure 1 Optical Micrograph Of the Ti-30ta Alloy (A) Withoumentioning

confidence: 99%

Corrosion Resistance After Mechanical Deformation of the Ti30Ta Experimental Alloy for Using in Biomedical Applications

et al. 2017

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In this study the corrosion resistance of Ti30Ta experimental alloy was evaluated when submitted to different deformation rates. Alloys were processed in arc melting, furnace, forged and treated. The samples were machined in accordance with ASTME9-09 standard to carry out compression tests. The influence of deformation was evaluated by optical microscopy and XRD, and Eletrochemical parameters were analyzed in the most severe condition of deformation (22%). Corrosion resistance exhibited the same behavior for two conditions, 22% and without deformation.

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Comparative corrosion study of Ti–Ta alloys for dental applications

Cited by 209 publications

References 64 publications

Tantalum effect on the corrosion behavior of titanium-tantalum alloys in an environment containing fluoride ions

Tantalum effect on the corrosion behavior of titanium-tantalum alloys in an environment containing fluoride ions

Modification of a Ti–Mo alloy surface via plasma electrolytic oxidation in a solution containing calcium and phosphorus

Corrosion Resistance After Mechanical Deformation of the Ti30Ta Experimental Alloy for Using in Biomedical Applications

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