Synthesis, structure and electrochemical behavior of a beta Ti-12Mo-5Ta alloy as new biomaterial

Gordin, D.M.; Gloriant, T.; Nemtoi, Gh.; Chelariu, R.; Aelenei, N.; Guillou, A.; Ansel, D.

doi:10.1016/j.matlet.2004.09.063

Cited by 83 publications

(52 citation statements)

References 25 publications

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“…Similar passive behavior characteristic of valve metals was found by [9,31,34] but with higher passive current plateau. For example, A. V. Rodrigues [37] found when studying Ti15Mo in Ringer solution at 25°C that the passive plateau currents are between 300µA/cm 2 and 800µA/cm 2 which are very higher than those obtained in our study, varying between 12.26µA/cm 2 and 25.76 µA/cm 2 , in addition our study was carried out at 37°C.…”

Section: Cyclic Voltammetry Analysissupporting

confidence: 80%

“…Although this alloy is still widely utilized in medicine, some concern has been recently expressed over its use since it appears that small amounts of both vanadium and aluminum, released in the human body, induce possible cytotoxic effect and neurological disorders, respectively [27,28]. Due to the detrimental effect of Aluminum and vanadium, different titanium alloys containing non toxic elements (Nb, Ta, Mo, Zr) known as β-stabilizer elements, were developed in order to replace Ti-6Al-4V, such as Ti-Ta [29,30], Ta-Mo [7,8,31,32]; few works are available in the literature about the mechanical and corrosion behavior of Ti-Ta-Mo ternary alloy [33,34].…”

Section: Introductionmentioning

confidence: 99%

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Influence of fluoride on the electrochemical behvior of a new synthesized Ti-10Ta-2Mo alloy for biomedical applications

Oufella

Benchettara

2018

J. Fundam and Appl Sci.

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The aim of the present study is to investigate the corrosion resistance of a new synthesized Ti10Ta-2Mo in 0.9%NaCl solution containing different NaF concentrations using electrochemical techniques, including open circuit potential, potentiodynamic polarization, cyclic voltammetry and electrochemical impedance spectroscopy.The results showed that Ti-10Ta-2Mo exhibits a good corrosion resistance in 0.9% NaCl as well as in 0.9%NaCl containing fluoride and even in acidified 0.9% NaCl free of fluoride ion.Very low corrosion current densities and high impedance values were obtained, indicating the passive behavior of the alloy. An active state was observed in acidified 0.9%NaCl of pH 2 in the presence of fluoride. The results showed that Ti-10Ta-2Mo is more appropriate than some materials cited in the literature, suggesting its suitability for biomedical applications.

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Section: Cyclic Voltammetry Analysissupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Influence of fluoride on the electrochemical behvior of a new synthesized Ti-10Ta-2Mo alloy for biomedical applications

Oufella

Benchettara

2018

J. Fundam and Appl Sci.

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“…The lattice parameters of the b phase in the 3Mo, 5Mo, and 7Mo alloys are measured to be 0.347 nm, 0.345 nm, and 0.342 nm, respectively, which are larger than that of pure b titanium (0.331 nm) owing to dissolution with zirconium and molybdenum [24]. Moreover, because of the smaller atomic radius of molybdenum (1.39 Å ) compared to titanium (1.47 Å ) and zirconium (1.62 Å ), the addition of molybdenum causes a decrease in the b-phase lattice parameter [25,26].…”

Section: Resultsmentioning

confidence: 94%

Microstructures and mechanical properties of as‐cast titanium–zirconium–molybdenum ternary alloys

Yang

Wang

Shi

et al. 2018

Materialwissenschaft Werkst

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In this study titanium-zirconium-molybdenum alloys (Ti 50 Zr 50 ) 100-x Mo x (xMo; x = 0 at.%, 1 at.%, 3 at.%, 5 at.% or 7 at.%) were investigated, focusing on the effect of molybdenum addition on their microstructures and mechanical properties. Transmission electron microscopy observations revealed that the binary Ti 50 Zr 50 alloy was composed entirely of an acicular hexagonal structure of the a' phase. When the molybdenum content was 1 at.%, the alloy was composed of b and w phases. However, when 3 at.% or more molybdenum was added, only the equiaxed, retained b phase was observed. Tensile tests at room temperature indicated that the mechanical properties of the 1Mo alloy were inferior owing to the embrittlement effects of the w phase and the difficulty of dislocation motion through the w phase. Our research suggested that the 5Mo alloy had excellent ductility (16.5 %) as well as adequate strength (780 MPa). The improved mechanical properties were attributed to the enhanced stability of the b phase and the disappearance of the w phase.

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“…However, the element V (vanadium) has been found to cause severe tissue reaction in animals. [5][6][7][8][9][10][11] Also, there is a concern with element Al (aluminum) due to its possible connection to neurological disorders and Alzheimer's disease. 7,[11][12][13] Therefore, synthesis of new titanium-based alloys, which are compatible with the human body, has arrived at the adoption of more biocompatible metallic alloying elements, such as Nb, Ta and Zr.…”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7][8][9][10][11] Also, there is a concern with element Al (aluminum) due to its possible connection to neurological disorders and Alzheimer's disease. 7,[11][12][13] Therefore, synthesis of new titanium-based alloys, which are compatible with the human body, has arrived at the adoption of more biocompatible metallic alloying elements, such as Nb, Ta and Zr. 9,12,14,15) The selection of materials for different components in implant prostheses depends on several factors, including design and required strength of the system in application.…”

Section: Introductionmentioning

confidence: 99%

Effects of Chemical and Heat Treatments on Surface Characteristics and Biocompatibility of Titanium-Niobium Alloys

Feng

Pan

et al. 2007

Mater. Trans.

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Alkali solution-and heat-treatments were employed to modify the surfaces of Ti-6Al-4V, Ti-40Nb-1Hf and Ti-30Nb-1Fe-1Hf alloys, and then the surface characteristics and the biocompatibility of the treated alloys were analyzed. The formation of porous surfaces that contain numerous nano-pores and irregular cracks, together with the increase in hydroxyl, TiO 2 and Nb 2 O 5 contents in the surface layer of the treated Ti40Nb-1Hf and Ti-30Nb-1Fe-1Hf alloys, have been found to enhance biocompatibility which was evaluated by the osteoblast cell culture in vitro. In addition, the biocompatibility of both Ti-40Nb-1Hf and Ti-30Nb-1Fe-1Hf alloys are comparable to that of Ti-6Al-4V alloy. Alkali solutionand heat-treatments are believed to enhance bone-bonding ability of both Ti-40Nb-1Hf and Ti-30Nb-1Fe-1Hf alloys, and therefore are useful for surface modification practice.

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Synthesis, structure and electrochemical behavior of a beta Ti-12Mo-5Ta alloy as new biomaterial

Cited by 83 publications

References 25 publications

Influence of fluoride on the electrochemical behvior of a new synthesized Ti-10Ta-2Mo alloy for biomedical applications

Influence of fluoride on the electrochemical behvior of a new synthesized Ti-10Ta-2Mo alloy for biomedical applications

Microstructures and mechanical properties of as‐cast titanium–zirconium–molybdenum ternary alloys

Effects of Chemical and Heat Treatments on Surface Characteristics and Biocompatibility of Titanium-Niobium Alloys

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