Effects of thermomechanical history and environment on the fatigue behavior of (β)-Ti-Nb implant alloys

Reck, André; Pilz, Stefan; Thormann, Ulrich; Alt, Volker; Gebert, A.; Calin, Mariana; Heiß, Christian; Zimmermann, Martina

doi:10.1051/matecconf/201816506001

Cited by 10 publications

(6 citation statements)

References 41 publications

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“…It is widely recognised that a reduction in Young's modulus can be observed by controlling thermomechanical treatments, and therefore, the phase transformations. Numerous research endeavours have investigated the effect of hardening mechanisms, including work hardening, grain boundary strengthening, or precipitation hardening [29,30,[36][37][38][39][40][41][42]. Notably, the strength properties of β-Ti-Nb-based alloys can be increased drastically using work hardening methods, as evidenced by yield strengths reaching 900 MPa and ultimate tensile strengths within the range of 1000 MPa [30,[36][37][38][39]43,44].…”

Section: Influence Of Processing Parameters On Mechanical Propertiesmentioning

confidence: 99%

Gallium-Containing Materials and Their Potential within New-Generation Titanium Alloys for Biomedical Applications

McHendrie,

Xiao,

Truong

et al. 2023

Biomimetics

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With the rising demand for implantable orthopaedic medical devices and the dominance of device-associated infections, extensive research into the development of novel materials has been prompted. Among these, new-generation titanium alloys with biocompatible elements and improved stiffness levels have received much attention. Furthermore, the development of titanium-based materials that can impart antibacterial function has demonstrated promising results, where gallium has exhibited superior antimicrobial action. This has been evidenced by the addition of gallium to various biomaterials including titanium alloys. Therefore, this paper aims to review the antibacterial activity of gallium when incorporated into biomedical materials, with a focus on titanium-based alloys. First, discussion into the development of new-generation Ti alloys that possess biocompatible elements and reduced Young’s moduli is presented. This includes a brief review of the influence of alloying elements, processing techniques and the resulting biocompatibilities of the materials found in the literature. The antibacterial effect of gallium added to various materials, including bioglasses, liquid metals, and bioceramics, is then reviewed and discussed. Finally, a key focus is given to the incorporation of gallium into titanium systems for which the inherent mechanical, biocompatible, and antibacterial effects are reviewed and discussed in more detail, leading to suggestions and directions for further research in this area.

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Section: Influence Of Processing Parameters On Mechanical Propertiesmentioning

confidence: 99%

Gallium-Containing Materials and Their Potential within New-Generation Titanium Alloys for Biomedical Applications

McHendrie,

Xiao,

Truong

et al. 2023

Biomimetics

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“…The ultimate plasticity for the UFG Ti-45Nb alloy is 6% (Table 3). For comparison, Table 3 demonstrates the properties of the industrial Ti-45Nb alloy [25,117]. By refining the structure of the Ti-45Nb alloy, the plasticity before fracture decreases to 6%.…”

Section: Ti-45nb Alloymentioning

confidence: 99%

“…Since Ti and Nb are non-toxic elements, the Ti-Nb binary alloys exhibit excellent biocompatibility. In particular, the Ti-40Nb and Ti-45Nb alloys demonstrate a good combination of Young's (elasticity) modulus, corrosion resistance, and biocompatibility [22][23][24][25]. The elasticity modulus of titanium and medium-strength titanium alloys is in the range of 100-120 GPa, thus significantly exceeding Young's modulus of the bone tissue.…”

Section: Introductionmentioning

confidence: 99%

Development of Ultrafine–Grained and Nanostructured Bioinert Alloys Based on Titanium, Zirconium and Niobium and Their Microstructure, Mechanical and Biological Properties

Sharkeev

Eroshenko

Легостаева

et al. 2022

Metals

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For this paper, studies of the microstructure as well as the mechanical and biological properties of bioinert titanium, zirconium, and niobium alloys in their nanostructured (NS) and ultrafine-grained (UFG) states have been completed. The NS and UFG states were formed by a combined two-step method of severe plastic deformation (SPD), first with multidirectional forging (MDF) or pressing into a symmetrical channel (PSC) at a given temperature regime, and then subsequent multi-pass groove rolling (MPGR) at room temperature, with pre-recrystallization annealing. Annealing increased the plasticity of the alloys in the NS and UFG states without changing the grain size. The UFG structure, with an average size of structural elements of no more than 0.3 μm, was formed as a result of applying two-step SPD and annealing. This structure presented significant improvement in the mechanical characteristics of the alloys, in comparison with the alloys in the coarse-grained (CG) or small-grained (SG) states. At the same time, although the formation of the UFG structure leads to a significant increase in the yield strength and tensile strength of the alloys, their elastic modulus did not change. In terms of biocompatibility, the cultivation of MG-63 osteosarcoma cells on the polished and sandblasted substrates demonstrated high cell viability after 10 days and good cell adhesion to the surface.

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“…[ 13 , 14 ]. The yield strength of “pure” titanium and the Ti-45 wt.% Nb alloy is 300 and 380 MPa respectively, and their ultimate strength is 400 and 650 MPa [ 15 , 16 ] that is lower than the level of mechanical properties of medium-alloyed titanium alloys for medical applications, such as Ti-6Al-4V, Ti-3Al-5Mo-5V.…”

Section: Introductionmentioning

confidence: 99%

Comparative Investigation of the Influence of Ultrafine-Grained State on Deformation and Temperature Behavior and Microstructure Formed during Quasi-Static Tension of Pure Titanium and Ti-45Nb Alloy by Means of Infrared Thermography

et al. 2022

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A comprehensive study was performed of the deformation and temperature behavior during quasi-static tension, as well as the peculiarities of accumulation and dissipation of energy during plastic deformation. Microstructural analysis at the pre-fracture stage of pure titanium and Ti-45Nb alloy in the coarse grain (CG) and ultrafine-grained (UFG) states was also conducted. It was shown that substructural and dispersion hardening leads to a change in the regularities of dissipation and accumulation energies during deformation of the samples of the pure titanium and Ti-45Nb alloy in the UFG state. Some features of structural transformations during deformation of the pure titanium and Ti-45Nb alloy samples in the CG and UFG states were studied. A band and cellular-network and fragmented dislocation structure was formed in the case of the CG state, while large anisotropic fragments were formed in the UFG state, thus specifying a local softening of the material before fracture.

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Effects of thermomechanical history and environment on the fatigue behavior of (β)-Ti-Nb implant alloys

Cited by 10 publications

References 41 publications

Gallium-Containing Materials and Their Potential within New-Generation Titanium Alloys for Biomedical Applications

Gallium-Containing Materials and Their Potential within New-Generation Titanium Alloys for Biomedical Applications

Development of Ultrafine–Grained and Nanostructured Bioinert Alloys Based on Titanium, Zirconium and Niobium and Their Microstructure, Mechanical and Biological Properties

Comparative Investigation of the Influence of Ultrafine-Grained State on Deformation and Temperature Behavior and Microstructure Formed during Quasi-Static Tension of Pure Titanium and Ti-45Nb Alloy by Means of Infrared Thermography

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