About: Long-Term Corrosion Behavior of Biocompatible beta-Type Ti Alloy in Simulated Body Fluid

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The corrosion behavior of the Ti-33.5Nb-5.7Ta alloy (Ti-Nb-Ta) as a biocompatible beta-type Ti alloy during long-term immersion in simulated body fluid was investigated. Like pure Ti, pitting corrosion did not occur on Ti-Nb-Ta during anodic polarization. Thus, alloying of Ti with Nb and Ta did not change the chloride-ion sensitivity. Metal ion release of Ti, Nb, and Ta was detected after 7-d immersion in the solution; however, the amounts of ions were much smaller than those from Type316L stainless steel. X-ray photoelectron spectroscopy revealed that the fractions of Nb and Ta in the passive layer increased during the immersion while that of Ti decreased. The corrosion rate of Ti-Nb-Ta determined by electrochemical impedance spectroscopy kept decreasing over a period of 15 d while the thickness of the passive layer did not change after 1 d. Thus, the reconstruction of the passive layer of the alloy was proven to be important for metal ion release during long-term implantation in a living body. Thus, Ti-Nb-Ta has sufficient corrosion resistance as a biocompatible beta-type Ti alloy. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.045210jes] All rights reserved. The corrosion behavior of the Ti-33.5Nb-5.7Ta alloy (Ti-Nb-Ta) as a biocompatible beta-type Ti alloy during long-term immersion in simulated body fluid was investigated. Like pure Ti, pitting corrosion did not occur on Ti-Nb-Ta during anodic polarization. Thus, alloying of Ti with Nb and Ta did not change the chloride-ion sensitivity. Metal ion release of Ti, Nb, and Ta was detected after 7-d immersion in the solution; however, the amounts of ions were much smaller than those from Type316L stainless steel. X-ray photoelectron spectroscopy revealed that the fractions of Nb and Ta in the passive layer increased during the immersion while that of Ti decreased. The corrosion rate of Ti-Nb-Ta determined by electrochemical impedance spectroscopy kept decreasing over a period of 15 d while the thickness of the passive layer did not change after 1 d. Thus, the reconstruction of the passive layer of the alloy was proven to be important for metal ion release during long-term implantation in a living body. Thus, Ti-Nb-Ta has sufficient corrosion resistance as a biocompatible beta-type Ti alloy. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.045210jes] All rights reserved. (en)
Title	Long-Term Corrosion Behavior of Biocompatible beta-Type Ti Alloy in Simulated Body Fluid Long-Term Corrosion Behavior of Biocompatible beta-Type Ti Alloy in Simulated Body Fluid (en)
skos:prefLabel	Long-Term Corrosion Behavior of Biocompatible beta-Type Ti Alloy in Simulated Body Fluid Long-Term Corrosion Behavior of Biocompatible beta-Type Ti Alloy in Simulated Body Fluid (en)
skos:notation	RIV/00159816:_____/12:#0001016!RIV13-MZ0-00159816
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(1M0528)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Prachár, Patrik Bartáková, Sonia
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fakultní nemocnice u sv.Anny v Brně
http://linked.open...dnocenehoVysledku	147429
http://linked.open...ai/riv/idVysledku	RIV/00159816:_____/12:#0001016
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Titanium; Niobium; Tantalum; alloy (en)
http://linked.open.../riv/klicoveSlovo	alloy Tantalum Titanium Niobium
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[00D736E3685A]
http://linked.open...i/riv/nazevZdroje	Journal of the electrochemical society
http://linked.open...in/vavai/riv/obor	FF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Dental research centre
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	159
http://linked.open...iv/tvurceVysledku	Bartáková, Sonia Prachár, Patrik Doi, H. Hanawa, T. Migita, S. Nomura, N. Tsutsumi, Y. Yalatu, S.
http://linked.open...ain/vavai/riv/wos	000309105500030
issn	0013-4651
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1149/2.045210jes

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