Comparison of fatigue strengths of biocompatible Ti-15Zr-4Nb-4Ta alloy and other titanium materials |
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| Authors: | Yoshimitsu Okazaki Emiko Gotoh |
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| Affiliation: | 1. National Institute of Advanced Industrial Science and Technology, 2-1 Namiki 1-chome, Tsukuba, Ibaraki 305-8564, Japan;2. National Institute of Technology and Evaluation, 2 Namiki 1-chome, Tsukuba, Ibaraki 305-0044, Japan |
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| Abstract: | The fatigue strength of an annealed Ti-15Zr-4Nb-4Ta alloy at 1 × 108 cycles was approximately 730 MPa. 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 × 108 cycles were approximately 685, 600, 700, and 350 MPa, respectively. The ratios of fatigue strength at 1 × 108 cycles to ultimate tensile strength for the α- and (α + β)-type Ti materials were higher than 65%. |
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