Development of a new quaternary alloy Ti–25Ta–25Nb–3Sn for biomedical applications

Seixas, Maurício Rangel; Bortolini, Celso; Pereira, Adriana Maria; Nakazato, Roberto Zenhei; Popat, Ketul C.; Claro, Ana Paula Rosifini Alves

doi:10.1088/2053-1591/aa87c8

Cited by 13 publications

(4 citation statements)

References 28 publications

(34 reference statements)

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“…The corrosion performance of β Ti alloys is often rated by its comparison with commercially pure (cp-Ti) or Ti-6Al-4V. The corrosion resistance of β Ti alloys may be better [157,158], similar [76,159], or worse [57,160] than cp-Ti or Ti-6Al-4V. Various factors such as alloying elements, microstructure, and corrosive medium affect the corrosion rates.…”

Section: Corrosionmentioning

confidence: 99%

Comprehensive review on alloy design, processing, and performance ofβTitanium alloys as biomedical materials

Bahl

Suwas

Chatterjee

2020

International Materials Reviews

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Metastable β Ti alloys are widely projected for manufacturing the next generation of biomedical implants. The primary applications of these materials are envisaged in orthopedic, cardiovascular, and orthodontic biomedical devices. Development of an alloyprogresses through stages of compositional design, thermo-mechanical processing, and evaluation of material performance. This review tracks the progress at these three stages of alloy development particularly for use in orthopedic devices. The strategies to design low modulus compositions of β Ti alloys are critically reviewed. This is followed by the processing routes employed to achieve high strength to modulus ratio suitable for orthopedic applications. The effect of processing on performance metrics of these alloys vis-à-vis fatigue resistance, tribological response, corrosion behaviour, and biocompatibility are reviewed. In the end, targeted research areas for the future are highlighted along with encouraging strategies, with the aim to ensue clinical application of β Ti alloys.

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Section: Corrosionmentioning

confidence: 99%

Comprehensive review on alloy design, processing, and performance ofβTitanium alloys as biomedical materials

Bahl

Suwas

Chatterjee

2020

International Materials Reviews

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“…During swaging, the imposed small shear strain increments gradually refine the grain size via repeating the chain of grain fragmentation-substructure formation-grain nucleation. Given by its advantageous stress state and incremental character, swaging can be used to process challenging materials (e.g., composites of various types [ 44 , 45 , 46 , 47 , 48 ], materials with low plasticity, challenging and hardenable alloys [ 49 , 50 , 51 , 52 , 53 , 54 ], materials strengthened with oxide dispersions (ODS) [ 55 , 56 , 57 ], etc.). Swaging can also be used to process powder-based pre-sintered or additively manufactured workpieces to reduce the residual porosity, improve density, and enhance properties [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Structure Development on Performance of Copper Composites Processed via Intensive Plastic Deformation

2023

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Designing a composite, possibly strengthened by a dispersion of (fine) oxides, is a favorable way to improve the mechanical characteristics of Cu while maintaining its advantageous electric conductivity. The aim of this study was to perform mechanical alloying of a Cu powder with a powder of Al2O3 oxide, seal the powder mixture into evacuated Cu tubular containers, i.e., cans, and apply gradual direct consolidation via rotary swaging at elevated temperatures, as well as at room temperature (final passes) to find the most convenient way to produce the designed Al2O3 particle-strengthened Cu composite. The composites swaged with the total swaging degree of 1.83 to consolidated rods with a diameter of 10 mm were subjected to measurements of electroconductivity, investigations of mechanical behavior via compression testing, and detailed microstructure observations. The results revealed that the applied swaging degree was sufficient to fully consolidate the canned powders, even at moderate and ambient temperatures. In other words, the final structures, featuring ultra-fine grains, did not exhibit voids or remnants of unconsolidated powder particles. The swaged composites featured favorable plasticity regardless of the selected processing route. The flow stress curves exhibited the establishment of steady states with increasing strain, regardless of the applied strain rate. The electroconductivity of the composite swaged at elevated temperatures, featuring homogeneous distribution of strengthening oxide particles and the average grain size of 1.8 µm2, reaching 80% IACS (International Annealed Copper Standard).

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“…Recently, Ti-25Ta-25Nb-3Sn 8 was studied by our group and showed excellent mechanical properties, highlighting its low elastic modulus. However, in addition to the low elastic modulus, another important factor is the surface of the material.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of the Ti25Ta25Nb3Sn Alloy and its Influence on The Cell and Bacteria Adhesion - In Vitro Studies

et al. 2023

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In this study, alkaline treatment was used to change the surface of the new beta titanium alloy Ti25Ta25Nb3Sn and enhance its bioactivity. Ti25Ta25Nb3Sn, a new experimental alloy was processed in the laboratory and the surfaces were modified using alkaline treatment. Samples were soaked at 60 0 C for 24 hours in different NaOH solutions to obtain surfaces with different morphologies. The surfaces were characterized by different techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), and Atomic Force Microscopy (AFM). The wettability of the surfaces was measured using the sessile drop method. In vitro studies were carried out to evaluate cell adhesion, proliferation, and bacteria adhesion. As a result of the alkaline treatment, a nanoporous and amorphous layer was formed on the Ti25Ta25Nb3Sn alloy surface with super hydrophilic behavior for all conditions evaluated. However, different nano topography was observed which affected biological response. The morphology obtained after immersion in 1.5 NaOH solution led to bacteria adhesion decreased and osteoblasts cells differentiation. Results of this study show that is possible to obtain a new titanium experimental alloy with excellent bulk and surface properties that may decrease the risk of infections and increase osseointegration.

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Development of a new quaternary alloy Ti–25Ta–25Nb–3Sn for biomedical applications

Cited by 13 publications

References 28 publications

Comprehensive review on alloy design, processing, and performance ofβTitanium alloys as biomedical materials

Comprehensive review on alloy design, processing, and performance ofβTitanium alloys as biomedical materials

Influence of Structure Development on Performance of Copper Composites Processed via Intensive Plastic Deformation

Surface Modification of the Ti25Ta25Nb3Sn Alloy and its Influence on The Cell and Bacteria Adhesion - In Vitro Studies

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