Corrosion behavior of biomedical Ti-24Nb-4Zr-8Sn alloy in different simulated body solutions

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	Corrosion behavior of biomedical Ti-24Nb-4Zr-8Sn alloy in different simulated body solutions
	Y. Bai; Y. L. Hao; S. J. Li; Y. Q. Hao; R. Yang; F. Prima
	2013
发表期刊	Materials Science & Engineering C-Materials for Biological Applications
ISSN	0928-4931
卷号	33 期号:4 页码:2159-2167
摘要	Corrosion behavior of a multifunctional biomedical titanium alloy Ti-24Nb-4Zr-8Sn (wt.%) in 0.9% NaCl, Hank's solution and artificial saliva at 37 degrees C was investigated using open circuit potential, impedance spectroscopy and potentiodynamic polarization techniques, and some results were compared with pure titanium and Ti-6Al-4V alloy. The results showed that the alloy exhibited good corrosion resistance due to the formation of a protective passive film consisting mainly of TiO2 and Nb2O5, and a little of ZrO2 and SnO2. Ca ions were detected in the passive film as the alloy immersed in Hank's and artificial saliva solutions and they have negative effect on corrosion resistance. The EIS results indicated that either a duplex film with an inner barrier layer and an outer porous layer or a single passive layer was formed on the surface, and they all transformed into stable bilayer structure as the immersion time increased up to 24 h. The polarization curves demonstrated that the alloy had a wider passive region than pure titanium and Ti-6Al-4V alloy and its corrosion current density (less than 0.1 mu A/cm(2)) is comparable to that of pure titanium. (C) 2013 Elsevier B.V. All rights reserved.
部门归属	[bai, y.] anshan normal univ, chem & life sci sch, anshan 114016, peoples r china. [bai, y. ; hao, y. l. ; li, s. j. ; yang, r.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [hao, y. q.] china med univ, sch stomatol, dept prosthodont, shenyang 110002, peoples r china. [prima, f.] enscp paris, grp met struct, cnrs umr 7045, lab physicochim surfaces, paris, france. ; hao, yl (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; ylhao@imr.ac.cn
关键词	Biomedical Titanium Alloy Corrosion Behavior Simulated Body Solutions Potentiodynamic Polarization Eis In-vitro Corrosion Electrochemical Impedance Spectroscopy Elastic-deformation Behavior Titanium-alloys Ti-6al-4v Alloy Artificial Saliva Implants Ti Resistance Vanadium
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71142
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Bai,Y. L. Hao,S. J. Li,et al. Corrosion behavior of biomedical Ti-24Nb-4Zr-8Sn alloy in different simulated body solutions[J]. Materials Science & Engineering C-Materials for Biological Applications,2013,33(4):2159-2167.
APA	Y. Bai,Y. L. Hao,S. J. Li,Y. Q. Hao,R. Yang,&F. Prima.(2013).Corrosion behavior of biomedical Ti-24Nb-4Zr-8Sn alloy in different simulated body solutions.Materials Science & Engineering C-Materials for Biological Applications,33(4),2159-2167.
MLA	Y. Bai,et al."Corrosion behavior of biomedical Ti-24Nb-4Zr-8Sn alloy in different simulated body solutions".Materials Science & Engineering C-Materials for Biological Applications 33.4(2013):2159-2167.