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 |
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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
Cite this
Effect of solute oxygen on compressive fatigue strength of spinal fixation rods made of Ti-29Nb-13Ta-4.6Zr alloys. / Lee, Yoonseok; Niinomi, Mitsuo; Nakai, Masaaki; Narita, Kengo; Liu, Huihong.
In: Materials Transactions, Vol. 57, No. 12, 2016, p. 1993-1997.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of solute oxygen on compressive fatigue strength of spinal fixation rods made of Ti-29Nb-13Ta-4.6Zr alloys
AU - Lee, Yoonseok
AU - Niinomi, Mitsuo
AU - Nakai, Masaaki
AU - Narita, Kengo
AU - Liu, Huihong
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
KW - Biomaterials
KW - Fatigue
KW - Fretting
KW - Orthopedic device
KW - Spinal fixation
KW - Ti-29Nb-13Ta-4.6Zr
KW - Ti-6Al-4V
UR - http://www.scopus.com/inward/record.url?scp=84998922457&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84998922457&partnerID=8YFLogxK
U2 - 10.2320/matertrans.MI201504
DO - 10.2320/matertrans.MI201504
M3 - Article
AN - SCOPUS:84998922457
VL - 57
SP - 1993
EP - 1997
JO - Materials Transactions
JF - Materials Transactions
SN - 1345-9678
IS - 12
ER -