Abstract
In spinal fixation devices, the activity of the patient can cause fretting of the metal-to-metal contacts between the rod and plug, which may result in failures. In this study, compressive fatigue tests were conducted with rods made of Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) with oxygen contents of 0.06 mass% (06O) and 0.89 mass% (89O) and Ti-6Al-4V extra low interstitial alloy (Ti64) as comparison in both air and saline solution. The fatigue strength increases in the order of 06O<89O< Ti64 in both air and saline solution. These results indicate that solid-solution strengthening by oxygen improves the fretting fatigue resistance of the TNTZ rod.
| Original language | English |
|---|---|
| Pages (from-to) | 1993-1997 |
| Number of pages | 5 |
| Journal | Materials Transactions |
| Volume | 57 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2016 |
Keywords
- Biomaterials
- Fatigue
- Fretting
- Orthopedic device
- Spinal fixation
- Ti-29Nb-13Ta-4.6Zr
- Ti-6Al-4V
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Fingerprint Dive into the research topics of 'Effect of solute oxygen on compressive fatigue strength of spinal fixation rods made of Ti-29Nb-13Ta-4.6Zr alloys'. Together they form a unique fingerprint.
Cite this
Lee, Y. S., Niinomi, M., Nakai, M., Narita, K., & Liu, H. (2016). Effect of solute oxygen on compressive fatigue strength of spinal fixation rods made of Ti-29Nb-13Ta-4.6Zr alloys. Materials Transactions, 57(12), 1993-1997. https://doi.org/10.2320/matertrans.MI201504