Paper Title:
Corrosion Resistance of Ti-29Nb-13Ta-4.6Zr Alloy in a Fluoride-Containing Solution
  Abstract

The objective of this study was to evaluate the corrosion behavior of Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) with immersion in an acidic saline solution containing fluoride by investigating change in color and the surface structure of the oxide film. With immersion in fluoride-containing solution, TNTZ showed a less marked change in color than commercially pure titanium (TI), and a smaller decrease in glossiness. The outermost surface was covered with oxides from its constituent elements at before and after immersion in solution with or without fluoride. When immersed in fluoride-containing solution, the film consisted of larger niobium and tantalum oxides than that before or after immersion in solution without fluoride. In summary, TNTZ showed superior resistance to discoloration to TI after immersion in fluoride-containing solution. The results suggest that the subsequent increase in niobium and tantalum fractions in the oxide film in TNTZ improves resistance to corrosion.

  Info
Periodical
Key Engineering Materials (Volumes 529-530)
Main Theme
Chapter
X. Metals
Edited by
Kunio Ishikawa and Yukihide Iwamoto
Pages
584-587
DOI
10.4028/www.scientific.net/KEM.529-530.584
Citation
S. Takemoto, M. Nakai, M. Hattori, M. Yoshinari, E. Kawada, M. Niinomi, Y. Oda, "Corrosion Resistance of Ti-29Nb-13Ta-4.6Zr Alloy in a Fluoride-Containing Solution", Key Engineering Materials, Vols. 529-530, pp. 584-587, 2013
Online since
November 2012
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Price
$35.00
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