The Effect of Cold Swaging Deformation on the Microstructures and Mechanical Properties of a Novel Metastable β Type Ti–10Mo–6Zr–4Sn–3Nb Alloy for Biomedical Devices

Cheng, Jianwei; Wang, Hongchuan; Li, Jinshan; Gai, Jinyang; Ru, Jinming; Du, Zhongjie; Fan, Jiangkun; Jinlong, Niu; Song, Hongjie; Yu, Zhentao

doi:10.3389/fmats.2020.00228

Cited by 12 publications

(5 citation statements)

References 55 publications

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“…In the rudimentary stage of the HPT deformation, a twinning process takes place, which is followed by significant grain refinement [31,33,34]. In contrast, deformation using RS creates shear bands with a high density of lattice defects and refined grains with an elongated character, as also reported in studies [35][36][37][38]. The shear bands are caused by the dislocation slip during RS, while the elongated character of the grains is the result of the combination of a dislocation slip and a grain boundary slip [37].…”

Section: Discussionmentioning

confidence: 54%

Phase Transformations upon Ageing in Ti15Mo Alloy Subjected to Two Different Deformation Methods

Bartha

Stráský

Veverková

et al. 2021

Metals

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Ti15Mo alloy was subjected to two techniques of intensive plastic deformation, namely high pressure torsion and rotary swaging at room temperature. The imposed strain resulted in the formation of an ultrafine-grained structure in both deformed conditions. Detailed inspection of the microstructure revealed the presence of grains with a size of around 100 nm in both conditions. The microstructure after rotary swaging also contained elongated grains with a length up to 1 µm. Isothermal ageing at 400 °C and 500 °C up to 16 h was applied to both conditions to investigate the kinetics of precipitation of the α phase and the recovery of lattice defects. Positron annihilation spectroscopy indicated that the recovery of lattice defects in the β matrix had already occurred at 400 °C and, in terms of positron trapping, was partly compensated by the precipitation of incoherent α particles. At 500 °C the recovery was fully offset by the formation of incoherent α/β interfaces. Contrary to common coarse-grained material, in which the α phase precipitates in the form of lamellae, precipitation of small and equiaxed α particles occurred in the deformed condition. A refined two-phase equiaxed microstructure with α particles and β grain sizes below 1 μm is achievable by simple rotary swaging followed by ageing.

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Section: Discussionmentioning

confidence: 54%

Phase Transformations upon Ageing in Ti15Mo Alloy Subjected to Two Different Deformation Methods

Bartha

Stráský

Veverková

et al. 2021

Metals

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“…After 50, 75, and 90 % cold rolling treatment, the hardness of the alloys increased to 318.4, 295.2, and 353 HV, respectively. The high dislocation density produced by cold rolling leads to a significant strain hardening or work hardening, which increases the hardness of the alloy [51,52]. Therefore, CR90, which has the highest amount of plastic deformation, has the highest hardness.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Effect of thermomechanical treatment on structure and properties of metastable Ti-25Nb-8Sn alloy

Hsu¹,

Wong²,

Chen³

et al. 2021

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In this work, different thermomechanical treatment conditions were used to improve the mechanical performances of Ti-25Nb-8Sn. During cold rolling treatment (50, 75, and 90 %), as-cast Ti-25Nb-8Sn underwent a stress-induced phase transformation from a single β phase to a three-phase structure of α + β + ωstr. After the subsequent aging treatment, Ti-25Nb--8Sn presents three-phase β + α + ωiso (at 250 and 400 • C, for 30 min) and two-phase β + α (at 600 • C, for 30 min). At lower aging temperatures (250 and 400 • C), yield strength/modulus (× 1000) ratios of Ti-25Nb-8Sn are dramatically improved with a maximum increase of 143 %, from 9.06 (as-cast) to 16.2-22.0. Under various thermomechanical treatment conditions in this study, the results show that Ti-25Nb-8Sn has excellent yield strength/modulus (× 1000) ratio (∼ 22) and corrosion resistance after 90 % cold rolling and subsequent aging treatment at 250 and 400 • C for 30 min. K e y w o r d s : titanium alloys, biomaterials, cold working, aging, hardness

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“…Using non-toxic elements, we developed a novel ß type of biomedical titanium alloy -- Ti10Mo6Zr4Sn3Nb, referred to as Ti-B12, and obtained the national invention patent (ZL.201110184053.X) ( Cheng et al, 2020 ). Mechanical tests demonstrate that when the elastic modulus of Ti-B12 titanium alloy is as low as 50 GPa, the tensile strength is about 970 MPa, and the elongation can reach more than 40%, which has obvious advantages over pure Ti.…”

Section: Introductionmentioning

confidence: 99%

Biocompatibility and osseointegration properties of a novel high strength and low modulus β- Ti10Mo6Zr4Sn3Nb alloy

Liu

Wang²,

Li³

et al. 2023

Front. Bioeng. Biotechnol.

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Introduction: Ti6Al4V titanium alloy is widely used in producing orthopedic and maxillofacial implants, but drawbacks include high elastic modulus, poor osseointegration performance, and toxic elements. A new medical titanium alloy material with better comprehensive performance is urgently needed in the clinic.Methods: Ti10Mo6Zr4Sn3Nb titanium alloy (referred to as Ti-B12) is a unique medical ß titanium alloy material developed by us. The mechanical properties of Ti-B12 depict that it has advantages, such as high strength, low elastic modulus, and fatigue resistance. In our study, the biocompatibility and osseointegration properties of Ti-B12 titanium alloy are further studied to provide theoretical guidance for its clinical transformation.Results and Discussion: The titanium alloy Ti-B12 displays no significant effect on MC3T3-E1 cell morphology, proliferation, or apoptosis in vitro. Neither Ti-B12 titanium alloy nor Ti6Al4V titanium alloy depicts a significant difference (p > 0.05); Ti-B12 material extract injected into the abdominal cavity of mice does not cause acute systemic toxicity. The skin irritation test and intradermal irritation test reveal that Ti-B12 does not cause skin allergic reactions in rabbits. Compared to Ti6Al4V, Ti-B12 titanium alloy material has more advantages in promoting osteoblast adhesion and ALP secretion (p < 0.05). Although there is no significant difference in OCN and Runx2 gene expression between the three groups on the 7th and 14th days of differentiation induction (p > 0.05), the expression of Ti-B12 group is higher than that of Ti6Al4V group and blank control group. Furthermore, the rabbit in vivo test present that 3 months after the material is implanted in the lateral epicondyle of the rabbit femur, the Ti-B12 material fuses with the surrounding bone without connective tissue wrapping. This study confirms that the new β-titanium alloy Ti-B12 not only has low toxicity and does not cause rejection reaction but also has better osseointegration performance than the traditional titanium alloy Ti6Al4V. Therefore, Ti-B12 material is expected to be further promoted in clinical practice.

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The Effect of Cold Swaging Deformation on the Microstructures and Mechanical Properties of a Novel Metastable β Type Ti–10Mo–6Zr–4Sn–3Nb Alloy for Biomedical Devices

Abstract: The Effect of Cold Swaging Deformation on the Microstructures and Mechanical Properties of a Novel Metastable β Type Ti-10Mo-6Zr-4Sn-3Nb Alloy for Biomedical Devices.

Cited by 12 publications

References 55 publications

Phase Transformations upon Ageing in Ti15Mo Alloy Subjected to Two Different Deformation Methods

Phase Transformations upon Ageing in Ti15Mo Alloy Subjected to Two Different Deformation Methods

Effect of thermomechanical treatment on structure and properties of metastable Ti-25Nb-8Sn alloy

Biocompatibility and osseointegration properties of a novel high strength and low modulus β- Ti10Mo6Zr4Sn3Nb alloy

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