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The effect of Pt and Pd alloying additions on the corrosion behavior of titanium in fluoride-containing environments

Paper ID Volume ID Publish Year Pages File Format Full-Text
12789 818 2005 8 PDF Available
Title
The effect of Pt and Pd alloying additions on the corrosion behavior of titanium in fluoride-containing environments
Abstract

In this study, we examined the corrosion behaviors of pure titanium, the alloys Ti–6Al–4V and Ti–6Al–7Nb, and the new experimental alloys Ti–Pt and Ti–Pd using anodic polarization and corrosion potential measurements in an environment containing fluoride. Before and after immersion in the test solutions, we made observations using a scanning electron microscope. The test solutions included an artificial saliva containing 0.2% NaF (corresponding to 905 ppm F) and an artificial saliva with a low concentration of oxygen. Although the surfaces of the Ti–Pt and Ti–Pd alloys were not affected by an acidic environment containing fluoride, the surfaces of the pure titanium, the Ti–6Al–4V alloy, and the Ti–6Al–7Nb alloy were markedly roughened by corrosion. The surfaces of the pure titanium, the Ti–6Al–4V alloy, and the Ti–6Al–7Nb alloy were microscopically damaged by corrosion when they were immersed in the solution containing a low concentration of dissolved oxygen, even with a fluoride concentration included in the commercial dentifrices. In this situation, however, the surfaces of the new Ti–Pt and Ti–Pd alloys were not affected. These alloys are expected to be of use in dental work as new titanium alloys with high corrosion resistances.

Keywords
Titanium; Titanium alloy; Corrosion; Fluoride; Anodic polarization; Corrosion potential
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The effect of Pt and Pd alloying additions on the corrosion behavior of titanium in fluoride-containing environments
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 15, May 2005, Pages 2239–2246
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us