Development of Ti-Mo alloys for biomedical applications: Microstructure and electrochemical characterization

被引：168

作者：

Oliveira, Nilson T. C. ^{[1
]}

Aleixo, Giorgia

Caram, Rubens

Guastaldi, Antonio C.

机构：

[1] UNESP, Inst Quim, Grp Biomat, Araraquara, SP, Brazil

[2] Univ Estadual Campinas, FEM, Lab Met Fis & Solidificacao, Campinas, SP, Brazil

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 452卷

基金：

巴西圣保罗研究基金会;

关键词：

Ti-Mo alloys; biocompatible alloys; biomedical titanium alloys; corrosion; microstructure;

D O I：

10.1016/j.msea.2006.11.061

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ti-Mo alloys from 4 to 20 Mo wt.% were arc-melted. Their compositions and surfaces were analyzed by EDX, XRF and SEM. The Mo mapping shows a homogeneous distribution for all alloys. The XRD analysis showed that the crystal structure of the alloys is sensitive to the Mo concentration; a mixture of the hexagonal alpha' and orthorhombic alpha '' phases was observed for the Ti-4Mo alloy, and the alpha '' phase is observed almost exclusively when the concentration of Mo added to the Ti reaches 6%. A significant retention of the beta phase is observed for the alloy containing 10% Mo, while at higher Mo concentrations (15% and 20%), retention of phase beta is only verified. Preliminary electrochemical studies have indicated a valve-metal behavior and good corrosion resistance in aerated Ringer solution for all alloys. (c) 2006 Published by Elsevier B.V.

引用

页码：727 / 731

页数：5

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