Tribocorrosion behavior of β titanium alloys in physiological solutions containing synovial components

More, N.S.; Diomidis, Nikitas; Paul, Subir; Roy, Manish; Mischler, S.

doi:10.1016/j.msec.2010.10.021

Cited by 60 publications

(31 citation statements)

References 30 publications

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“…where M is the atomic mass of Ti30Nb, Ti30Nb2Sn and Ti30Nb4Sn (61.4, 62.8 and 64.2 g/mol respectively), n is the charge number for the oxidation reaction (valence of oxidation was assumed 4), F is the Faraday constant (96,500 C/mol), ρ is the density of the alloys equal to 4,25 g/cm 3 and t is the duration of sliding, 3600 s. The total wear volume, V tot was determined geometrically by confocal microscopy. The area of an average cross section of the wear track multiplied by the length of the track gives one the V tot .…”

Section: 5friction and Wear Quantificationmentioning

confidence: 99%

“…Ti6Al4V alloy has been employed during years, although it was found to be toxic due to the release of aluminum and vanadium ions [3]. Recent efforts have focused on developing new titanium alloys, specifically  titanium alloys containing Nb, Mo, Zr or Ta, which are considered non-toxic [4].…”

Section: Introductionmentioning

confidence: 99%

“…The corrosion behavior of titanium alloys depends on the formation of an oxide film mainly composed of TiO 2 , which spontaneously covers the titanium surface and its alloys in presence of oxygen and/or water [3]. The chemical properties of the oxide layer play an important role in the biocompatibility of titanium implants and the surrounding tissues.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore the corrosion behavior of  Ti alloys is governed by the role of the  stabilizer elements on the passive film. For example, the presence of niobium in the alloy enhances the passivation characteristics of the film by decreasing the concentration of the anion vacancies in the TiO 2 film [3]. Indeed, previous studies on TiNbSn alloys [15] in a phosphate buffered solution showed that the addition of 2% wt.…”

Section: Introductionmentioning

confidence: 99%

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Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Pina

Dalmau

Devesa

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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ElsevierGuiñon Pina, V.; Dalmau, A.; Amigó Borrás, V. (2015). AbstractThe tribo-electrochemical behavior of different  titanium alloys for biomedical applications sintered by powder metallurgy has been investigated. Different mechanical, electrochemical and optical techniques were used to study the influence of the chemical composition, Sn content, and the electrochemical conditions on the tribocorrosion behavior of those alloys Ti30NbxSn alloys (where "x" is the weight percentage of Sn content, 2% and 4%).Sn content increases the active and passive dissolution rate of the titanium alloys, thus increasing the mechanically activated corrosion under tribocorrosion conditions. It also increases the mechanical wear of the alloy. Prevailing electrochemical conditions between -1 and 2 V influences the wear accelerated corrosion by increasing it with the applied potential and slightly increases the mechanical wear of Ti30Nb4Sn.Wear accelerated corrosion can be predicted by existing models as a function of electrochemical and mechanical parameters of the titanium alloys.

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Section: 5friction and Wear Quantificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Pina

Dalmau

Devesa

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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“…Commercially pure titanium (α alloy) and the Ti6Al4V alloy (α + β alloy) were found to be the most employed alloys for dental implants during years, although they exhibit prolonged use limitations: high elastic modulus compared to the bone, and low wear resistance [4],6]. Ti6Al4V was also found to be toxic due to the release of aluminium and vanadium ions [6]. Recent effort has been focused on developing new titanium alloys specifically for biomedical applications [7] such as the β alloys.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Dalmau

Pina

Devesa

et al. 2015

Materials Science and Engineering: C

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The electrochemical behaviour of three different near-β titanium alloys (composed by Ti, Nb and Sn) obtained by powder metallurgy for biomedical applications has been investigated. Different electrochemical and microscopy techniques were used to study the influence of the chemical composition (Sn content) and the applied potential on the microstructure and the corrosion mechanisms of those titanium alloys. Addition of Sn below 4% wt. to the titanium powder improves the microstructural homogeneity and generates an alloy with high corrosion resistance with low elastic modulus, being more suitable as a biomaterial. When the Sn content is above 4%, the corrosion resistance considerably decreases by increasing the passive dissolution rate; this effect is enhanced with the applied potential.

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Synthetic periprosthetic synovial fluid development for in vitro cell‐tribocorrosion testing using the Taguchi array approach

Wiegand

Khullar

Mercuri

et al. 2020

J Biomedical Materials Res

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Synovial fluid is dynamic in vivo with biological components changing in ratio and size depending on the health of the joint space, making it difficult to model in vitro. Previous efforts to develop synthetic synovial fluid have typically focused on single organic‐tribological interactions with implant surfaces, thus ignoring interplay between multiple solution components. Using a Taguchi orthogonal array, we were able to isolate the individual effects of five independent synovial fluid composition variables: ratios of (1) hyaluronic acid to phospholipids (HA:PL) and (2) albumin to globulin (A:G), and concentrations of (3) hydrogen peroxide (H2O2), (4) cobalt (Co2+) and (5) chromium (Cr3+) ions on macrophage viability and reduced glutathione production, local solution pH and the comprehensive CoCrMo alloy electrochemical response. While no single synovial fluid variable significantly affected the collective response, HA:PL ratio resulted in the largest impact factor (Δ) on 12 of the 13 measured responses with significant effects (p < .05) on the average macrophage survival rate and electrochemical capacitive state of the CoCrMo surface. Cluster analysis separated significant responses from all trials into three groups, corresponding to healthy, mild, or severely inflamed fluids, respectively; with the healthy synovial fluid composition having mid‐range HA:PL ratios with no Co2+ ions, and the severely inflamed fluids consisting of low and high HA:PL ratios with H2O2 and Co2+ ions. By utilizing the Taguchi approach in combination with cluster analysis, we were able to advance our knowledge of complex multivariate synthetic synovial fluids influence on macrophage and electrochemical behavior at the cell‐solution‐metal interface.

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Tribocorrosion behavior of β titanium alloys in physiological solutions containing synovial components

Cited by 60 publications

References 30 publications

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Electrochemical behavior of near-beta titanium biomedical alloys in phosphate buffer saline solution

Synthetic periprosthetic synovial fluid development for in vitro cell‐tribocorrosion testing using the Taguchi array approach

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