|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Advanced Materials in Dental and Orthopedic Applications
||Beta-type Titanium Alloys for Use as Rods in Spinal Fixation Devices
||Mitsuo Niinomi, Masaaki Nakai, Huihong Liu, Kengo Narita
|On-Site Speaker (Planned)
Ti-12Cr has been developed for use as various biomedical applications, especially in designing spinal rods. When Ti-12Cr is deformed, its Young’s modulus increases due to the deformation-induced omega phase transformation. Therefore, if a spinal rod made of Ti-12Cr is bent during operation, only the Young’s modulus of the bent region increases: This phenomenon decreases the spring-back of the rod, which indicates that the bent shape is well kept. The compression fatigue strength of Ti-12Cr that is obtained from the compression fatigue test performed according to the ASTM standard to evaluate the endurance of the spinal rod improves significantly by adopting cavitation peening. The details of the development of the Ti-Cr alloy for the use as a spinal rod will be discussed.
||Planned: A print-only volume