A Novel Metastable Ti-25Nb-2Mo-4Sn Alloy with High Strength and Low Young’s Modulus

Guo, Shun; Bao, Zhen‐Zhen; Meng, Qingkun; Hu, Liang; Zhao, Xinqing

doi:10.1007/s11661-012-1324-0

Cited by 25 publications

(8 citation statements)

References 13 publications

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“…3 and Fig. 6b; Ⅱ) As is well known, martensitic transformation can be suppressed effectively by some structural factors, such as grain refinement and dislocation tangles, due to the shear nature of martensitic transformation [26,40,41]. In the case of CR Ti-33Nb-4Sn specimen, a lot of dislocations and grain boundaries caused by cold rolling (Fig.…”

Section: Deformation Behaviour Of Cr Ti-33nb-4sn Alloymentioning

confidence: 83%

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In situ synchrotron X-ray diffraction study of deformation behaviour of a metastable β-type Ti-33Nb-4Sn alloy

Guo

Shang

Zhang

et al. 2017

Materials Science and Engineering: A

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In this study, the deformation behaviour of metastable β-type Ti-33Nb-4Sn alloys in different thermo-mechanical treatment states is investigated by tensile tests and in situ synchrotron X-ray diffraction (SXRD). In the case of solution-treated alloy, stress-induced martensitic (SIM) transformation takes place over a wide strain range of 0.5-14%. During this SIM transformation, the parameter of b α" ([020] α") increases with macroscopic strain within strain range of 1.5-4.7%, giving rise to that the α" variants, with b α"-axis ([020] α") parallel to tensile direction, are formed preferentially to accommodate the macroscopic strain during loading. Similar SIM transformation behaviour also occurs in cold-rolled alloy with the exception that the extent of SIM

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Section: Deformation Behaviour Of Cr Ti-33nb-4sn Alloymentioning

confidence: 83%

“…Recently, it was found that metastable β-type Ti alloys, which exhibit a mixture of β and α" phases upon quenching, have a high potential for orthopedic implants owing to their ultralow elastic modulus [26][27][28][29]. Typically, Ti-33Nb-4Sn (wt.…”

Section: Introductionmentioning

confidence: 99%

In situ synchrotron X-ray diffraction study of deformation behaviour of a metastable β-type Ti-33Nb-4Sn alloy

Guo

Shang

Zhang

et al. 2017

Materials Science and Engineering: A

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“…Over the last few decades, vanadium-free Ti implants such as α + β Ti-6Al-7Nb alloy (ISO 5832-11), near β alloys such as Ti-13Nb-13Zr alloy (ASTM F1713-96), Ti-12Mo-6Zr-2Fe alloy (ASTM F1813-97) with improved biocompatibility have been developed by incorporating biocompatible elements such as Ta, Zr or Nb [4][5][6][7]. Metastable β type Ti-15Mo-5Zr-3Al and α + β type Ti-6Al-2Nb-1Ta alloys have been clinically developed for both cemented and cementless types of artificial hip joints.…”

Section: Metallic Materialsmentioning

confidence: 99%

“…Artificial hip replacements are estimated to increase by 174% up from its current total procedures performed to 572,000 procedures per year in 2030. Current developments in the field of artificial hip joints are focused on the use of (a) short stems for minimal invasive surgery [2,3]; (b) new Ti alloys with better mechanical strength and biocompatibility than conventional Ti alloys [4][5][6][7]; (c) calcium phosphate coatings [8][9][10][11][12] or simple alkali and heat treatments incidence of wear particle-induced osteolysis in the first ten years of clinical use [43], especially in hips where wear damage is prominent.…”

Section: Introductionmentioning

confidence: 99%

Progress in Wear Resistant Materials for Total Hip Arthroplasty

et al. 2017

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Current trends in total hip arthroplasty (THA) are to develop novel artificial hip joints with high wear resistance and mechanical reliability with a potential to last for at least 25-30 years for both young and old active patients. Currently used artificial hip joints are mainly composed of femoral head of monolithic alumina or alumina-zirconia composites articulating against cross-linked polyethylene liner of acetabular cup or Co-Cr alloy in a self-mated configuration. However, the possibility of fracture of ceramics or its composites, PE wear debris-induced osteolysis, and hypersensitivity issue due to metal ion release cannot be eliminated. In some cases, thin ultra-hard diamond-based, TiN coatings on Ti-6A-4V or thin zirconia layer on the Zr-Nb alloy have been fabricated to develop high wear resistant bearing surfaces. However, these coatings showed poor adhesion in tribological testing. To provide high wear resistance and mechanical reliability to femoral head, a new kind of ceramic/metal artificial hip joint hybrid was recently proposed in which 10-15 µm thick dense layer of pure α-alumina was formed onto Ti-6Al-4V alloy by deposition of Al metal layer by cold spraying or cold metal transfer methods with 1-2 µm thick Al 3 Ti reaction layer formed at their interface to improve adhesion. An optimal micro-arc oxidation treatment transformed Al to dense α-alumina layer, which showed high Vickers hardness 1900 HV and good adhesion to the substrate. Further tribological and cytotoxicity analyses of these hybrids will determine their efficacy for potential use in THA.

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“…Many promising metastable β‐Ti alloys such as Ti–Nb–Ta–Zr, Ti–Nb–Mo–Sn, and Ti–Nb–Mo–Zr have been developed specifically for orthopedic implant systems. However, the selection of suitable alloy composition to obtain appropriate mechanical properties, biocompatibility, and ease of manufacture is challenging.…”

Section: Introductionmentioning

confidence: 99%

Properties of Powder Metallurgy‐Fabricated Oxygen‐Containing Beta Ti–Nb–Mo–Sn–Fe Alloys for Biomedical Applications

et al. 2019

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The influence of minor oxygen additions on the microstructure and mechanical properties of powder metallurgy (PM) fabricated Ti–25Nb–5Mo–3Sn–2Fe alloy is studied. The results demonstrate the positive influence of a certain oxygen content (0.35 wt%) on the microstructure and mechanical properties of sintered samples. Despite the presence of 7.0% porosity in the PM‐fabricated samples of Ti–25Nb–5Mo–3Sn–2Fe–0.35O, a high strength of 682 MPa, elongation of 7.2%, and Young's modulus of 74 GPa are obtained. The strength‐to‐modulus ratio of this alloy is higher than most common Ti biomedical alloys, indicating that this alloy may have better suitability for orthopedic applications. Deviation in the oxygen content of the alloy from 0.35 wt% negatively impacts on the ductility of the samples.

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A Novel Metastable Ti-25Nb-2Mo-4Sn Alloy with High Strength and Low Young’s Modulus

Cited by 25 publications

References 13 publications

In situ synchrotron X-ray diffraction study of deformation behaviour of a metastable β-type Ti-33Nb-4Sn alloy

In situ synchrotron X-ray diffraction study of deformation behaviour of a metastable β-type Ti-33Nb-4Sn alloy

Progress in Wear Resistant Materials for Total Hip Arthroplasty

Properties of Powder Metallurgy‐Fabricated Oxygen‐Containing Beta Ti–Nb–Mo–Sn–Fe Alloys for Biomedical Applications

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