Abstract
A novel biomedical alloy with a changeable Young’s modulus was developed in order to satisfy the requirements of both the patients and surgeons in spinal fixation operations. The alloy has not only a low Young’s modulus to prevent a stress-shielding effect which benefits patients, but also a high Young’s modulus to suppress springback for surgeons. In this study, the chromium and oxygen contents in ternary Ti-Cr-O alloys were optimized for achieving a large changeable Young’s modulus with good mechanical properties. The Young’s moduli of all the examined alloys increase by cold rolling, attributed to the deformation-induced co-phase transformation. This transformation can be suppressed by oxygen, but enhanced with lower chromium content. Among the examined alloys, the Ti-11Cr-0.2O alloy shows the largest changeable Young’s modulus and a high tensile strength with an acceptable elongation in both solution-treated (ST) and cold-rolled (CR) conditions. Therefore, the Ti-llCr-0.2O alloy, which shows a good balance among a changeable Young’s modulus, high tensile strength and good plasticity, is considered to be a potential candidate for spinal fixation applications.
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References
D. Kuroda et al., “Design and mechanical properties of new β type titanium alloys for implant materials,” Mater Sci Eng A, 243 (1998), 244–249.
H. Matsumoto, S. Watanabe, and S. Hanada, “Beta TiNbSn alloys with low Young’s modulus and high strength,” Mater Trans, 46 (2005), 1070–1078.
Y.L. Hao et al., “Effect of Zr and Sn on Young’s modulus and superelasticity of Ti-Nb-based alloys,” Mater Sci Eng A, 441(2006), 112–118.
N. Sumitomo et al., “Experiment study on fracture fixation with low rigidity titanium alloy,” J Mater Sci, 19 (2008), 1581–1586.
J.P. Steib et al., “Surgical correction of scoliosis by in situ contouring,” Spine, 29 (2004), 193–199.
M. Nakai et al., “Self-adjustment of Young’s modulus in biomedical titanium alloys during orthopaedic operation,” Mater Lett, 65 (2011), 688–690.
M. Abdel-Hady, K. Hinoshita, and M. Morinaga, “General approach to phase stability and elastic properties of b-type Ti-alloys using electronic parameters,” Scripta Mater, 55 (2006), 477–480.
S. Hanada, and O. Izumi, “Deformation behaviour of retained β phase in β-eutectoid Ti-Cr alloys,” J Mater Sci, 21 (1986), 4131–4139.
T.S. Kuan, R.R. Ahrens, and S.L. Sass, “The stress-induced omega phase transformation in Ti-V alloys,” Metall Trans A, 6 (1975), 1767–1774.
M. Oka, and Y. Taniguchi, “332 Deformation twins in a Ti-155 pct V alloy,” Metall Trans A, 10 (1979), 651–653.
S. Hanada, and O. Izumi, “Correlation of tensile properties, deformation modes, and phase stability in commercial β-phase titanium alloys,” Metall Trans A, 18 (1987), 265–271.
H. Matsumoto et al., “Composition dependence of Young’s modulus in Ti-V, Ti-Nb, and Ti-V-Sn alloys,” Metall Trans A, 37 (2006), 3239–3249.
S. Hanada, and O. Izumi, “Transmission electron microscopic observations of mechanical twinning in metastable beta titanium alloys,” Metall Trans A, 17 (1986), 1409–1420.
X.F. Zhao et al., “Optimization of Cr content of metastable β-type Ti-Cr alloys with changeable Young’s modulus for spinal fixation applications,” Acta Biomater, 8 (2012), 2392–2400.
X.F. Zhao et al., “Beta type Ti-Mo alloys with changeable Young’s modulus for spinal fixation applications,” Acta Biomater, 8(2012), 1990–1997.
X.L. Zhao et al., “Microstructures and mechanical properties of metastable Ti-30Zr-(Cr, Mo) alloys with changeable Young’s modulus for spinal fixation applications,” Acta Biomater, 7 (2011), 3230–3236.
J.I. Qazi et al., “Phase transformations in Ti-35Nb-7Zr-5Ta-(0.06–0.68)O alloys,” Mater Sci Eng C, 25 (2005), 389–397.
J.C. Williams, D. de Fontaine, and N.E. Paton, “The co-phase as an example of an unusual shear transformation,” Metall Trans, 4 (1973), 2701–2708.
D. de Fontaine, N.E. Paton, and J.C. Williams, “The omega phase transformation in titanium alloys as an example of displacement controlled reactions,” Acta Metall 19 (1971), 1153–1162.
X.L. Zhao et al., “Development of high Zr-containing Ti-based alloys with low Young’s modulus for use in removable implants,” Mater Sci Eng C, 31 (2011), 1436–1444.
H.H. Liu et al., “β-type Ti-Cr-O alloys with large changeable Young’s modulus and high strength for spinal fixation applications,” submitted for publication.
Y Yang et al., “Evolution of deformation mechanisms of Ti-22.4Nb-0.73Ta-2Zr-l.34O alloy during straining,” Acta Mater, 58 (2010), 2778–2787.
S. Banerjee, and P. Mukhopadhyay, Phase Transformations: Examples from Titanium and Zirconium Alloys (Great Britain: Elsevier, 2007), 474–508.
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Liu, H., Niinomi, M., Nakai, M., Hieda, J., Cho, K. (2013). Deformation Induced Changeable Young’s Modulus in Ternary Ti-Cr-O Alloys for Spinal Fixation Applications. In: Marquis, F. (eds) Proceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-48764-9_205
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DOI: https://doi.org/10.1007/978-3-319-48764-9_205
Publisher Name: Springer, Cham
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