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Statements

Subject Item
n2:RIV%2F00159816%3A_____%2F12%3A%230001016%21RIV13-MZ0-00159816
rdf:type
n6:Vysledek skos:Concept
dcterms: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.
dcterms: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
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
skos:notation
RIV/00159816:_____/12:#0001016!RIV13-MZ0-00159816
n6:predkladatel
n7:ico%3A00159816
n3:aktivita
n19:I n19:P
n3:aktivity
I, P(1M0528)
n3:cisloPeriodika
10
n3:dodaniDat
n11:2013
n3:domaciTvurceVysledku
n13:4969324 n13:6780954
n3:druhVysledku
n17:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
147429
n3:idVysledku
RIV/00159816:_____/12:#0001016
n3:jazykVysledku
n8:eng
n3:klicovaSlova
Titanium; Niobium; Tantalum; alloy
n3:klicoveSlovo
n4:Tantalum n4:Niobium n4:alloy n4:Titanium
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[00D736E3685A]
n3:nazevZdroje
Journal of the electrochemical society
n3:obor
n12:FF
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
8
n3:projekt
n16:1M0528
n3:rokUplatneniVysledku
n11:2012
n3:svazekPeriodika
159
n3:tvurceVysledku
Doi, H. Prachár, Patrik Hanawa, T. Bartáková, Sonia Yalatu, S. Migita, S. Nomura, N. Tsutsumi, Y.
n3:wos
000309105500030
s:issn
0013-4651
s:numberOfPages
6
n10:doi
10.1149/2.045210jes