Degradation behavior of Ti-Nb alloys: Corrosion behavior through 21 days of immersion and tribocorrosion behavior against alumina

被引：62
作者：
Caha, I. [1 ]
Alves, A. C. [1 ]
Kuroda, P. A. B. [2 ,3 ]
Grandini, C. R. [2 ,3 ]
Pinto, A. M. P. [1 ,4 ]
Rocha, L. A. [2 ,3 ]
Toptan, F. [1 ,2 ]
机构：
[1] Univ Minho, Ctr MicroElectroMech Syst, UMinho, CMEMS, P-4800058 Azurem, Guimaraes, Portugal
[2] Inst Biomat Tribocorros & Nanomed, Brazilan Branch, IBTN Br, Bauru, SP, Brazil
[3] Univ Estadual Paulista, Fac Ciencias Bauru, Dept Fis, UNESP, BR-17033360 Bauru, SP, Brazil
[4] Univ Minho, Dept Engn Mecan, P-4800058 Azurem, Guimaraes, Portugal
来源：
CORROSION SCIENCE | 2020年 / 167卷
基金：
巴西圣保罗研究基金会;
关键词：
Titanium alloys; Biomaterials; Corrosion; Immersion; Tribocorrosion; BETA)-TYPE TITANIUM-ALLOYS; METALLIC BIOMATERIALS; BETA-TYPE; NIOBIUM; WEAR; TI-6AL-4V; TI-13NB-13ZR; IMPLANTS; CONTACT;
D O I：
10.1016/j.corsci.2020.108488
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Non-toxic and allergic free beta-type Ti alloys are attractive metallic implant materials due to their lower Young's modulus and good biocompatibility, but the corrosion and tribocorrosion behavior are yet to be fully understood. In this study, corrosion behavior of Ti-15Nb and Ti-40Nb alloys was investigated and compared with the commercial Ti-6Al-4V alloy through an immersion period of 21 days. The tribocorrosion behavior was investigated under open-circuit potential by using a ball-on-plate tribometer. Results suggested that the beta-type Ti-40Nb alloy having 51 GPa Young's modulus had lower corrosion and wear resistance as compared to the alpha + beta-type Ti-15Nb and Ti-6Al-4V alloys.
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页数：9
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