Effect of Partial Substitution of Zr for Ti Solvent on Young's Modulus, Strength, and Biocompatibility in Beta Ti Alloy

被引：1

作者：

Nomura, Yusuke ^{[1
]}

Okada, Mio ^{[1
]}

Manaka, Tomoyo ^{[2
]}

Tsuchiya, Taiki ^{[1
]}

Iwasaki, Mami ^{[3
]}

Matsuda, Kenji ^{[1
]}

Ishimoto, Takuya ^{[2
]}

机构：

[1] Univ Toyama, Fac Sustainable Design, Dept Mat Design & Engn, Toyama 9308555, Japan

[2] Univ Toyama, Aluminium Res Ctr, Toyama 9308555, Japan

[3] Univ Toyama, Dept Mech Engn, Toyama 9308555, Japan

来源：

MATERIALS | 2024年 / 17卷 / 11期

基金：

日本学术振兴会;

关键词：

low Young's modulus; high strength; solid solution strengthening; beta-Ti; mechanical osteocompatibility; MECHANICAL-PROPERTIES; PHASE;

D O I：

10.3390/ma17112548

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In orthopedics and dentistry, there is an urgent need to obtain low-stiffness implants that suppress the stress shielding caused by the use of metallic implants. In this study, we aimed to fabricate alloys that can reduce the stiffness by increasing the strength while maintaining a low Young's modulus based on the metastable beta-Ti alloy. We designed alloys in which Ti was partially replaced by Zr based on the ISO-approved metastable beta-Ti alloy Ti-15Mo-5Zr-3Al. All alloys prepared by arc melting and subsequent solution treatment showed a single beta-phase solid solution, with no formation of the omega-phase. The alloys exhibited a low Young's modulus equivalent to that of Ti-15Mo-5Zr-3Al and a high strength superior to that of Ti-15Mo-5Zr-3Al and Ti-6Al-4V. This strengthening was presumed to be due to solid-solution strengthening. The biocompatibility of the alloys was as good as or better than that of Ti-6Al-4V. These alloys have potential as metallic materials suitable for biomedical applications.

引用

页数：11

共 27 条

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