Development of low rigidity β-type titanium alloy for biomedical applications

被引：286

作者：

Niinomi, M ^{[1
]}

Hattori, T

Morikawa, K

Kasuga, T

Suzuki, A

Fukui, H

Niwa, S

机构：

[1] Toyohashi Univ Technol, Dept Prod Syst Engn, Toyohashi, Aichi 4418580, Japan

[2] Meijo Univ, Fac Sci & Technol, Dept Mat Sci & Engn, Nagoya, Aichi 4688502, Japan

[3] Aichi Med Univ, Dept Orthopaed Surg, Aichi 4801195, Japan

[4] Nagoya Inst Technol, Dept Mat Sci, Nagoya, Aichi 4668555, Japan

[5] Daido Steel Co Ltd, R&D Lab, Nagoya, Aichi 4578545, Japan

[6] Aichi Gakuin Univ, Sch Dent, Dept Dent Mat Sci, Nagoya, Aichi 4648650, Japan

来源：

MATERIALS TRANSACTIONS | 2002年 / 43卷 / 12期

关键词：

titanium-29niobium-13tantalum-4.6zirconium; beta-type titanium alloy; low rigidity; biomedical application; biocompatibility; hydroxyapatite;

D O I：

10.2320/matertrans.43.2970

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

The low rigidity 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 of the alloys were investigated in this study. The following results were obtained. The mechanical performance of tensile properties and fatigue strength of the alloy are equal to or greater than those of conventional biomedical Ti-6A1-4V 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 of the alloy is excellent. Low rigidity of the alloy is effective to enhance the healing of bone fracture and remodeling of bone. The bioactive coating layer of hydroxyapatite can be formed on the alloy.

引用

页码：2970 / 2977

页数：8

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