Electrochemical synthesis of porous Ti-Nb alloys for biomedical applications

Vishnu, D. Sri Maha; Sure, Jagadeesh; Liu, Yingjun; Kumar, Rupesh; Schwandt, Carsten

doi:10.1016/j.msec.2018.11.025

Cited by 51 publications

(16 citation statements)

References 53 publications

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“…The second approach to creating biomechanically compatible metallic implants involves the production of porous metal structures using powder metallurgy, electrochemical synthesis, or additive manufacturing techniques [9,10,26,27,28,29,30,31,32,33]. It has been shown that the Young’s modulus of the produced porous structures can be adjusted to match that of the softest bone tissues [9,10,26].…”

Section: Introductionmentioning

confidence: 99%

The Electrochemical and Mechanical Behavior of Bulk and Porous Superelastic Ti‒Zr-Based Alloys for Biomedical Applications

et al. 2019

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Titanium alloys are well recognized as appropriate materials for biomedical implants. These devices are designed to operate in quite aggressive human body media, so it is important to study the corrosion and electrochemical behavior of the novel materials alongside the underlying chemical and structural features. In the present study, the prospective Ti‒Zr-based superelastic alloys (Ti-18Zr-14Nb, Ti-18Zr-15Nb, Ti-18Zr-13Nb-1Ta, atom %) were analyzed in terms of their phase composition, functional mechanical properties, the composition and structure of surface oxide films, and the corresponding corrosion and electrochemical behavior in Hanks’ simulated biological solution. The electrochemical parameters of the Ti-18Zr-14Nb material in bulk and foam states were also compared. The results show a significant difference in the functional performance of the studied materials, with different composition and structure states. In particular, the positive effect of the thermomechanical treatment regime, leading to the formation of a favorable microstructure on the corrosion resistance, has been revealed. In general, the Ti-18Zr-15Nb alloy exhibits the optimum combination of functional characteristics in Hanks’ solution, while the Ti-18Zr-13Nb-1Ta alloy shows the highest resistance to the corrosion environment. The Ti-18Zr-14Nb-based foam material exhibits slightly lower passivation kinetics as compared to its bulk equivalent.

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Section: Introductionmentioning

confidence: 99%

The Electrochemical and Mechanical Behavior of Bulk and Porous Superelastic Ti‒Zr-Based Alloys for Biomedical Applications

et al. 2019

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“…A typical representative of binary Ti alloys is Ti–Nb alloy. Porous Ti–Nb alloys synthesized by electro-deoxidation are proposed to be the best-suited candidate of the materials for biomedical applications [ 62 ]. Ibrahim et al [ 63 ] also prepared porous Ti–Nb shape memory alloys by microwave sintering with the most uniform pore shape.…”

Section: Biomedical Alloysmentioning

confidence: 99%

Biomedical Alloys and Physical Surface Modifications: A Mini-Review

Yan

Cao

2021

Materials

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Biomedical alloys are essential parts of modern biomedical applications. However, they cannot satisfy the increasing requirements for large-scale production owing to the degradation of metals. Physical surface modification could be an effective way to enhance their biofunctionality. The main goal of this review is to emphasize the importance of the physical surface modification of biomedical alloys. In this review, we compare the properties of several common biomedical alloys, including stainless steel, Co–Cr, and Ti alloys. Then, we introduce the principle and applications of some popular physical surface modifications, such as thermal spraying, glow discharge plasma, ion implantation, ultrasonic nanocrystal surface modification, and physical vapor deposition. The importance of physical surface modifications in improving the biofunctionality of biomedical alloys is revealed. Future studies could focus on the development of novel coating materials and the integration of various approaches.

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“…Furthermore, niobium and its alloys are also extensively used in machine parts with anti-corrosion properties in industrial sectors where the system runs in aggressive environments (Aimone and Yang, 2018). The corrosion properties of a series of Nb-Ti alloys were examined which was remarkably improved in artificial human fluids with recorded a few μA/cm 2 corrosion current densities (Vishnu et al, 2019). Besides, there is a tendency to develop titanium-based binary and ternary alloys containing remarkable amounts of niobium which have high biocompatibility, corrosion-resistant, and mechanical properties close to that of human bone (Karre et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Study on the synergism of corrosion-resistant W-xNb alloys by angle-resolved X-ray photoelectron spectroscopy

Bhattarai

2021

Ceylon J. Sci.

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The synergistic effect of simultaneous addition of tungsten and niobium to the sputter-deposited binary alloys of W-xNb (x = 26, 78) on exhibiting a very high corrosion-resistant activity in 12 M hydrochloric acid was studied using depth profiling technique of an angle-resolved X-ray photoelectron spectroscopy (AR-XPS) at 30 ℃. Both binary W-26Nb and W-78Nb alloys exhibited higher corrosion resistance properties compared with those of alloying metals, tungsten and niobium. The average corrosion rate (0.0054 -0.0101 mm/y) noticed was nearly ten times less compared with that of W and Nb metals. Results of the depth profiling analyses of these corrosionresistant W-xNb alloys by AR-XPS technique revealed that such corrosion action of the alloys is largely owing to the occurrence of homogeneous passive layers with W ox and Nb 5+ ions without in-depth concentration variations after immersion in 12 M hydrochloric acid, open to air, at 30 ℃. As a consequence, W and Nb metals acted synergistically in increasing the spontaneous passivity and the high corrosion resistance of the W-xNb deposits in 12 M hydrochloric acid.

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Electrochemical synthesis of porous Ti-Nb alloys for biomedical applications

Cited by 51 publications

References 53 publications

The Electrochemical and Mechanical Behavior of Bulk and Porous Superelastic Ti‒Zr-Based Alloys for Biomedical Applications

The Electrochemical and Mechanical Behavior of Bulk and Porous Superelastic Ti‒Zr-Based Alloys for Biomedical Applications

Biomedical Alloys and Physical Surface Modifications: A Mini-Review

Study on the synergism of corrosion-resistant W-xNb alloys by angle-resolved X-ray photoelectron spectroscopy

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