A study on corrosion resistance of the Ti-10Mo experimental alloy after different processing methods

被引：68
|
作者：
Alves, APR [1 ]
Santana, FA [1 ]
Rosa, LAA [1 ]
Cursino, SA [1 ]
Codaro, EN [1 ]
机构：
[1] Dept Engn Mecan, Lab Mat & Ensaios, BR-12060440 Taubate, SP, Brazil
来源：
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2004年 / 24卷 / 05期
关键词：
titanium alloys; biomaterials; corrosion; microstructure;
D O I：
10.1016/j.msec.2004.08.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The purpose of this work was to evaluate the microstructure and corrosion resistance of the experimental Ti-10Mo (wt.%) alloy as-cast and treated. These alloys were divided into three groups for analysis: as-cast, after solution heat treatment at 1000 degreesC in argon atmosphere and remelting in centrifugal machine (investment casting). The microstructure formed from each condition was studied using optical microscopy. Corrosion behavior of titanium-molybdenum alloys in fluoridated physiological serum (0.15 M NaCl+0.03 M NaF [pH=6]) was studied and compared with Ti-6Al-4V alloy. In all electrodes systems, similar electrochemical response was obtained. In naturally aerated physiological serum, the corrosion rate is mainly controlled by dissolution process of a complex passive film. This film appears to be formed by titanium species with different oxidation states. Experimental Ti-10Mo alloy exhibit the lowest passive current densities, in particular, samples after heat treatment. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：693 / 696
页数：4
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