Abstract
Newly developed low-modulus (β-type titanium alloys such as Ti-29Nb-13Ta-4.6Zr (TNTZ) and Ti-Cr alloys are expected to be used for rods in spinal fixation devices. As the endurance, i.e., fatigue strength, is one of the most important factors for this application. Various types of fatigue strengths of TNTZ and Ti-Cr alloys as well as their developments were investigated. Compared to conventional Ti-6A1–4V extra low interstitials (ELI) for biomedical applications the uni-axial fatigue strength of TNTZ is increased significantly by thermomechanical processing, which includes solution treatment, severe cold swaging or rolling, and followed by aging treatment. The uni-axial fatigue strength of Ti-12Cr is significantly higher compared to that of Ti-6A1–4V ELI. The four point bending fatigue strengths of the alloys exhibit opposite trends.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
M. Niinomi, M. Nakai and J. Hieda H. Oyama, S. Kojima, K. Ono, and Y. Ito, Acta Biomater., 8 (2012), 3888–3903.
M. Niinomi, T. Hattori, K. Morikawa, T. Kasuga, A. Suzuki, H. Fukui, and S. Niwa, Mater. Trans., 43 (2002), 2970–2977.
D. Kuroda, M. Niinomi, M. Morinaga, Y. Kato, and T. Yashiro, Mater. Sci. Eng. A, 243 (1998), 244–249.
M. Niinomi, Biomaterials, 24 (2003), 2673–2683.
T. Akahori, K. Ishimizu, H. Fukui, and A. Suzuki, J. Jpn. Inst. Met., 67(2003), 652–660.
T. Akahori, M. Niinomi, H. Fukui, M. Ogawa, and H. Toda, Mater. Sci. Eng. C, 25 (2005), 248–254.
K. Narita, M. Niinomi, M. Nakai, J. Hieda, and K. Oribe, JMBBM, 9(2012), 207–216.
K. Narita, M. Niinomi, M. Nakai, and K. Oribe, Mater. Lett., 86(2012), 178–181.
K. Narita, M. Niinomi, and M. Nakai, JMBBM, accepted for publication.
K. Narita, M. Niinomi, M. Nakai, and K. Oribe, J. Jpn. Inst. Met., 75(2022), 198–206.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2014 TMS (The Minerals, Metals & Materials Society)
About this paper
Cite this paper
Niinomi, M., Nakai, M., Hieda, J., Cho, K., Narita, K. (2014). Endurance of Low-Modulus β-Type Titanium Alloys for Spinal Fixation. In: TMS 2014: 143rd Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48237-8_27
Download citation
DOI: https://doi.org/10.1007/978-3-319-48237-8_27
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48593-5
Online ISBN: 978-3-319-48237-8
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)