Corrosion Resistance of Titanium Surgical Implant Alloys: A Review

2009 ◽  
pp. 259-259-15 ◽  
Author(s):  
RJ Solar
Keyword(s):  
Corrosion Resistance ◽  
Surgical Implant ◽  
Implant Alloys

Wrought cobalt-chromium surgical implant alloys

1972 ◽  
Vol 7 (1) ◽  
pp. 126-128 ◽  
Author(s):  
T. M. Devine ◽  
F. J. Kummer ◽  
J. Wulff
Keyword(s):  
Cobalt Chromium ◽  
Surgical Implant ◽  
Implant Alloys

Effect of Fluoride on the Corrosion Behavior of Ti and Ti6Al4V Dental Implants Coupled With Different Superstructures

2011 ◽  
Vol 37 (3) ◽  
pp. 309-317 ◽  
Author(s):  
Eman M Anwar ◽  
Lamia S Kheiralla ◽  
Riham H Tammam
Keyword(s):  
Corrosion Resistance ◽  
Dental Implants ◽  
Corrosion Behavior ◽  
Artificial Saliva ◽  
Fluoride Concentration ◽  
Ion Concentration ◽  
Fluoride Ion ◽  
All Ceramic ◽  
Metal Ceramic ◽  
Implant Alloys

Abstract The effect of fluoride ion concentration on the corrosion behavior of Ti and Ti6Al4V implant alloys, when coupled with either metal/ceramic or all-ceramic superstructure, was examined by different electrochemical methods in artificial saliva solutions. It was concluded that increased fluoride concentration leads to a decrease in the corrosion resistance of all tested couples. The type of the superstructure also showed a significant effect on the corrosion resistance of the couple.

Electrochemical Behaviour of Titanium Based Biomaterials in Artificial Saliva

2017 ◽  
Vol 68 (2) ◽  
pp. 396-400
Author(s):  
Kamel Earar ◽  
Camelia Ana Grigore ◽  
Cristian Budacu ◽  
Lucia Carmen Trinca ◽  
Daniel Mareci ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Behaviour ◽  
Layer Structure ◽  
Artificial Saliva ◽  
Electrochemical Behaviour ◽  
Grain Structure ◽  
Electrochemical Degradation ◽  
Nitrogen Diffusion ◽  
Implant Alloys ◽  
Modular Component

In the last decade, new titanium alloys such as Ti6Al7Nb and Ti6Al7NbN have been developed in different areas of dentistry. It is known that mechanical/electrochemical interactions accelerate corrosion in implant alloys, and these interactions can be reduced by improving the modular component machining tolerances or by improving the corrosion resistance. The aim of this study was to compare the Ti6Al7Nb and Ti6Al7NbN alloys corrosion resistance in AFNOR artificial saliva. Due to the nitrogen diffusion, the Ti6Al7NbN alloy presents more pronounced grain structure than Ti6Al7Nb. In the electrochemical estimations the polarisation data were converted into instantaneous corrosion rate values (jcorr). The obtained passivation properties were comparable for both alloys. The EIS spectra were best fitted using an equivalent circuit (EC) which was consistent with the model of a two-layer structure for the passive film. The electrochemical and corrosion behaviour of Ti6Al7NbN increased the occurrence of the implant alloy�s electrochemical degradation.

The Effect of Mo and Al on the Corrosion Behavior of Titanium and Some of its Alloys for Biomedical Applications

2014 ◽  
Vol 216 ◽  
pp. 11-16
Author(s):  
Julia Mirza Rosca ◽  
Liana Sanda Baltes ◽  
Mircea Horia Tierean
Keyword(s):  
Corrosion Resistance ◽  
Biomedical Applications ◽  
Electrochemical Impedance ◽  
Stable State ◽  
Experimental Conditions ◽  
Biomedical Implant ◽  
Β Phase ◽  
Impedance Spectroscopy Technique ◽  
Implant Alloys ◽  
Made In

The influence of molybdenum and aluminum on the corrosion resistance of the Ti and other Ti-based biomedical implant alloys under simulated physiological conditions is presented. Ti and its alloys Ti-10Mo and Ti-10Mo-10Al were studied. The electrochemical impedance spectroscopy technique was used and the experimental results were compared with those obtained by potentiostatic and potentiodynamic techniques. All the measurements were made in Ringer ́s solution at different pH and at different potentials as Ecorr, -650, -500, 0, +200 and +400 mV vs SCE. It was evident that Mo improved passivity and limited the active corrosion of the β-phase of Ti while Al enrichment of the α-phase was found to be detrimental to the passivity and corrosion resistance of Ti. In most experimental conditions, the passive film is formed by TiO2, Ti2O3and TiO. When pH is very low, thermodynamically stable state of Ti is titanium anion Ti3+.

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