Electrochemical characterization of a low modulus Ti-35.5Nb-7.3Zr-5.7Ta alloy in a simulated body fluid using EIS for biomedical applications

Journal Article · Thu Jun 23 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3592069· OSTI ID:21511609

Bhola, R; Bhola, S M; Mishra, B; Ayers, R A; Olson, D L ^[1]

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1. Department of Metallurgical and Materials Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, CO (United States)

Electrochemical characterization of the low modulus Ti-35.5Nb-7.3Zr-5.7Ta beta alloy (TNZT) has been performed in phosphate buffer saline solution at 37 deg. C using the non destructive electrochemical impedance spectroscopy technique. Measurements were performed at various immersion intervals at the open circuit potential (OCP), which was also monitored with time. Results obtained for TNZT alloy have been compared with those for the commercially used Ti-6Al-4V mixed alloy (Ti64) and the commercially pure titanium (Ti2) alpha alloy. Potentiodynamic polarization was performed to supplement the data obtained from EIS analysis. The TNZT alloy exhibits a two time constant impedance response, whereas the Ti64 and Ti2 alloys display a one time constant behavior. Human fetal osteoblast cells show a better adhesion and a higher cell count for the TNZT alloy compared to the other two alloys. The present investigation is an effort to understand the correlation between the electrochemical, morphological and cellular characteristics of titanium alloys to qualify them for implant applications.

• OSTI ID: 21511609
• Journal Information: AIP Conference Proceedings, Vol. 1335, Issue 1; Conference: Review of progress in quantitative nondestructive evaluation, San Diego, CA (United States), 18-23 Jul 2010; Other Information: DOI: 10.1063/1.3592069; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ADHESION
BODY FLUIDS
BUFFERS
CONNECTIVE TISSUE CELLS
CORRELATIONS
ELECTRIC IMPEDANCE
ELECTROCHEMISTRY
MATHEMATICAL SOLUTIONS
NIOBIUM ALLOYS
PHOSPHATES
POLARIZATION
SIMULATION
SPECTROSCOPY
TANTALUM ALLOYS
TERNARY ALLOY SYSTEMS
TITANIUM ALLOYS
ALLOY SYSTEMS
ALLOYS
ANIMAL CELLS
BIOLOGICAL MATERIALS
CHEMISTRY
IMPEDANCE
MATERIALS
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
SOMATIC CELLS
TRANSITION ELEMENT ALLOYS