Mechanical Properties and Biocompatibilities of Zr-Nb System Alloys with Different Nb Contents for Biomedical Applications

被引：17

作者：

Akahori, Toshikazu ^{[1
]}

Niinomi, Mitsuo ^{[2
]}

Nakai, Masaaki ^{[2
]}

Tsutsumi, Harumi ^{[2
]}

Kondo, Yusuke ^{[3
]}

Hattori, Tomokazu ^{[1
]}

Fukui, Hisao ^{[4
]}

机构：

[1] Meijo Univ, Fac Sci & Technol, Nagoya, Aichi 4688502, Japan

[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[3] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi 9808579, Japan

[4] Aichi Gakuin Univ, Sch Dent, Nagoya, Aichi 4648650, Japan

来源：

JOURNAL OF THE JAPAN INSTITUTE OF METALS | 2011年 / 75卷 / 08期

关键词：

metallic biomaterial; beta-type zirconium alloy; microstructure; tensile properties; Young's modulus; cell viability; bone-compatibility; HEAT-TREATMENT; BETA-PHASE; DECOMPOSITION; BEHAVIOR; OMEGA;

D O I：

10.2320/jinstmet.75.445

中图分类号：

TF [冶金工业];

学科分类号：

080601 [冶金物理化学];

摘要：

The microstructures, mechanical properties, and biocompatibilities of as-solutionized Zr-Nb system alloys with different Nb contents for biomedical applications were investigated. The microstructures of Zr-5 mass%Nb, Zr-10 mass%Nb, and Zr-20 mass%Nb alloys subjected to solution treatment (ST) consist of alpha', omega, and beta phases while the microstructure of Zr-30 mass%Nb alloy subjected to ST consists of almost all single beta phase. Young's modulus of Zr-20 mass%Nb alloy shows the lowest value of 63 GPa among the others alloys although the tensile strength and 0.2% proof stress decrease because of decrease in volume fraction of omega phase while Zr-10 mass%Nb alloy with a large amount of omega phase shows the highest values of Young's modulus, tensile strength, and 0.2% proof stress. The elongations of Zr-20 mass%Nb and Zr-30 mass%Nb alloys show relatively high values of 22% and 24%, respectively. The cell viability and bone-bonding characteristics of Zr-Nb system alloys are improved with increasing Nb content. Therefore, it is considered that Zr-Nb alloys have relatively high biocompatibility and belong to bio-inert metallic biomaterial.

引用

页码：445 / 451

页数：7

共 15 条

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