Effect of Rapid Solidification on Microstructure and Elastic Modulus of Ti-xNb-3Fe Alloys for Implant Applications

被引：14
作者：
Afonso, Conrado R. M. [1 ]
Chaves, Javier M. [2 ]
Florencio, Odila [2 ]
机构：
[1] Univ Fed Sao Carlos UFSCar, Dept Engn Mat DEMa, Rodovia Washington Luis,Km 235, BR-13565905 Sao Carlos, SP, Brazil
[2] Univ Fed Sao Carlos UFSCar, Dept Phys, Rodovia Washington Luis,Km 235, BR-13565905 Sao Carlos, SP, Brazil
来源：
ADVANCED ENGINEERING MATERIALS | 2017年 / 19卷 / 06期
基金：
巴西圣保罗研究基金会;
关键词：
TI-NB-TA; PHASE-TRANSFORMATIONS; MECHANICAL-PROPERTIES; TITANIUM-ALLOYS; COOLING RATE; BETA; ALPHA''; MARTENSITE;
D O I：
10.1002/adem.201600370
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The tendency of increasing in life expectancy leads to the development of new materials, especially metallic biomaterials for implant applications. This work aims the rapid solidification and characterization of microstructure and properties of Ti-Nb-Fe alloys for biomedical implants. The Ti-xNb-3Fe alloys (x=10, 15, 20, 25, 30 and 35 wt.%) were prepared in the arc melting and then copper mold cast in cylinder and plate shape. The samples were characterized by X-ray diffraction (XRD), optical (OM) and scanning electron microscopy (SEM). The elastic modulus lowered with Nb addition (for Ti-10Nb-3Fe alloy E=77GPa) and greater stability of phase, lowering to approximate to 70GPa for 15wt.%Nb and even more for 35wt.%Nb (E=62GPa). These results represent a low elastic modulus for a -Ti alloy with relatively low addition of -stabilizing elements (Nb and Fe).
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页数：6
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