Effect of Ag on the corrosion behavior of Ti-Ag alloys in artificial   saliva solutions

doi:10.1016/j.dental.2008.10.016

CORC > 北京大学 > 工学院

	Effect of Ag on the corrosion behavior of Ti-Ag alloys in artificial saliva solutions
	Zhang, B. B. ; Zheng, Y. F. ; Liu, Y.
刊名	牙科材料
	2009
关键词	Ti-Ag alloy Dental material Artificial saliva solution Corrosion Electrochemical characterization X-ray photoelectron spectroscopy COMMERCIALLY PURE TITANIUM CU ALLOYS FLUORIDE RESISTANCE PD
DOI	10.1016/j.dental.2008.10.016
英文摘要	Objectives. The purpose of this study was to investigate the corrosion behavior of Ti-Ag alloys in artificial saliva solutions. Methods. The corrosion behavior of experimental Ti-Ag alloys in artificial saliva was examined by means of potentiodynamic polarization measurements. The surface passive film formed was analyzed by means of X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) methods. Results. The alloys were found to develop surface passive films after immersion for 1.8 x 10(3) S. In comparison with commercially pure Ti, the Ti-Ag alloys exhibited better corrosion resistance with lower anodic current densities, larger polarization resistances, and higher open-circuit potentials. The passive film formed was predominantly composed of TiO(2), as determined by XPS. When fluoride ions were added in the solution, the TiO(2) passive film was destroyed and Na(2)TiF(6) was formed. Significance. Addition of Ag was found to be effective in reducing the corrosion current density and increasing the open circuit potential of titanium in artificial saliva environment. Addition of fluoride ions in the solution severely reduced the corrosion resistance of Ti-Ag alloys (C) 2008 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000265817900015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Dentistry, Oral Surgery & Medicine; Materials Science, Biomaterials; SCI(E); EI; 36; ARTICLE; 5; 672-677; 25
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/246271]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, B. B.,Zheng, Y. F.,Liu, Y.. Effect of Ag on the corrosion behavior of Ti-Ag alloys in artificial saliva solutions[J]. 牙科材料,2009.
APA	Zhang, B. B.,Zheng, Y. F.,&Liu, Y..(2009).Effect of Ag on the corrosion behavior of Ti-Ag alloys in artificial saliva solutions.牙科材料.
MLA	Zhang, B. B.,et al."Effect of Ag on the corrosion behavior of Ti-Ag alloys in artificial saliva solutions".牙科材料 (2009).