Comparison of fatigue strengths of biocompatible Ti-15Zr-4Nb-4Ta alloy and other titanium materials

Comparison of fatigue strengths of biocompatible Ti-15Zr-4Nb-4Ta alloy and other titanium materials

The fatigue strength of an annealed Ti-15Zr-4Nb-4Ta alloy at 1×108cycles was approximately 730MPa. The fatigue strength of its alloy was much improved following an ageing treatment after a solution treatment. The tension-to-tension fatigue strengths of annealed Ti-6Al-4V, V-free Ti-6Al-7Nb, Ti-6Al-2...

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Veröffentlicht in:Materials Science & Engineering C 2011-03, Vol.31 (2), p.325-333
Hauptverfasser: Okazaki, Yoshimitsu, Gotoh, Emiko
Format: Artikel
Sprache:eng
Schlagworte:
Aging
Annealing
Biocompatibility
Fatigue strength
Mechanical strength
Microstructures
Solution heat treatment
Surgical implants
S–N curves
Titanium
Titanium alloy
Titanium base alloys
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Zusammenfassung:The fatigue strength of an annealed Ti-15Zr-4Nb-4Ta alloy at 1×108cycles was approximately 730MPa. The fatigue strength of its alloy was much improved following an ageing treatment after a solution treatment. The tension-to-tension fatigue strengths of annealed Ti-6Al-4V, V-free Ti-6Al-7Nb, Ti-6Al-2Nb-1Ta, and Ti-15Mo-5Zr-3Al alloys at 1×108cycles were approximately 685, 600, 700, and 350MPa, respectively. The ratios of fatigue strength at 1×108cycles to ultimate tensile strength for the α- and (α+β)-type Ti materials were higher than 65%.
ISSN:0928-4931
1873-0191
DOI:10.1016/j.msec.2010.09.015