Super elastic functional β titanium alloy with low Young's modulus for biomedical applications

被引：2
|
作者：
Niinomi, M. [1 ]
Akahori, T. [1 ]
Hattori, Y.
Morikaw, K. [2 ]
Kasuga, T. [3 ]
Fukui, H. [4 ]
Suzuki, A. [5 ]
Kyo, K. [6 ]
Niwa, S. [7 ]
机构：
[1] Toyohashi Univ Technol, Dept Prod Syst Engn, 1-1 Hibarigaoka, Toyohashi, Aichi 4418580, Japan
[2] Aichi Med Univ, Dept Orthoped Surg, Nagakute, Aichi 4801195, Japan
[3] Nagoya Inst Technol, Dept Mat Sci, Showa ku, Nagoya, Aichi 4668555, Japan
[4] Aichi Gakuin Univ, Sch Dent, Dept Dent Mat Sci, Chikusa ku, Nagoya, Aichi 4648650, Japan
[5] Daido Steel Co Ltd, R & D Lab, Nagoya, Aichi 4578545, Japan
[6] Inst Phys & Chem Res, Surface Characterizat Div, Wako, Saitama 3510198, Japan
[7] Aichi Med Univ, Nagakute, Aichi 4801195, Japan
来源：
TITANIUM, NIOBIUM, ZIRCONIUM, AND TANTALUM FOR MEDICAL AND SURGICAL APPLICATIONS | 2006年 / 1471卷
关键词：
Ti-29Nb-13Ta-4.6Zr; P-type titanium alloy; low modulus; biomedical application; biocompatibility; super elastic behavior;
D O I：
10.1520/STP37553S
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The low modulus beta type titanium alloy, Ti-29Nb-13Ta-4.6Zr, was designed, and then the practical level ingot of the alloy was successfully fabricated by Levicast method. The mechanical and biological compatibilities, and super elastic behavior of the alloys were investigated in this study. The mechanical performance of tensile properties and fatigue strength of the alloy are equal to or greater than those of conventional biomedical Ti-6Al-4V ELI. Young's modulus of the alloy is much lower than that of Ti-6Al-4V ELI, and increases with the precipitation of alpha phase or omega phase in the beta matrix phase. The compatibility of the alloy with bone is excellent. Low modulus of the alloy is effective to enhance the healing of bone fracture and remodeling of bone. Super elastic behavior is observed in Ti-29Nb-13Ta-4.6Zr conducted with short time solution treatment after heavy cold working. Total elastic strain in that case is around 2.8%. The mechanism of the super elastic behavior of Ti-29Nb-13Ta-4.6Zr is still unclear.
引用
收藏
页码：135 / +
页数：3
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