Novel TiNbTaZrMo high-entropy alloys for metallic biomaterials

被引：316

作者：

Todai, Mitsuharu ^{[1
]}

Nagase, Takeshi ^{[1
,2
]}

Hori, Takao ^{[1
]}

Matsugaki, Aira ^{[1
]}

Sekita, Aiko ^{[1
]}

Nakano, Takayoshi ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan

[2] Osaka Univ, Res Ctr Ultra High Voltage Electron Microscopy, 7-1 Mihogaoka, Ibaraki, Osaka 5670047, Japan

来源：

SCRIPTA MATERIALIA | 2017年 / 129卷

关键词：

Biomaterials; High-entropy alloys (HEAs); Microstructure; Solidification; Crystal structure; LOW YOUNGS MODULUS; TITANIUM-ALLOYS; SOLID-SOLUTION; MICROSTRUCTURE; CRYSTALS; BEHAVIOR; ELEMENTS;

D O I：

10.1016/j.scriptamat.2016.10.028

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel equiatomicTiNbTaZrMo high-entropy alloy (HEA) was developed as a new metallic biomaterial. The constituent elements of the HEA were biocomparable, and the HEA was designed based on parameters such as the mixing enthalpy (Delta H-mix), the omega parameter (Omega), the delta parameter (delta), and the valence electron concentration (VEC) theory. The bcc solid solution phases with the different lattice constants were obtained in as-cast and annealed states. The HEA showed considerable strength with deformability and superior biocompatibility comparable to pure Ti. This study demonstrated the possibility of using HEAs as a new class of metallic biomaterials. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

引用

页码：65 / 68

页数：4

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