SEDL / STP / STP953-EB / STP25224S

Biocorrosion Studies of Ultralow-Temperature-Isotropic Carbon-Coated Porous Titanium

Buchanan, RA
Professor, University of Tennessee, Knoxville, TN

Rigney, ED
Graduate research assistant, University of Alabama at Birmingham, Birmingham, AL

Griffin, CD
Head of engineering, Carbomedics, Inc., Austin, TX

Pages: 10    Published: Jan 1987

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Abstract

Static, in vitro electrochemical and gravimetric corrosion studies were conducted to evaluate the effectiveness of 0.5-μm ultralow-temperature-isotropic (ULTI) carbon coatings in reducing the metal-ion release rates of porous titanium and solid Ti-6Al-4V alloy. The results indicated significant reductions for both materials, with the corrosion rate of carbon-coated porous titanium being reduced to that of solid uncoated Ti-6Al-4V. Analyses of the results indicate a minimum expected carbon-film lifetime of approximately 38 years.