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Journal of Materials Science

, Volume 42, Issue 18, pp 7819–7826 | Cite as

Internal friction of Niobium–Titanium–Oxygen alloys

  • L. M. YuEmail author
  • F. X. Yin
Article

Abstract

The compositional and temperature dependence of the anelastic relaxation behavior in Nb–Ti–O alloys have been investigated. Using a fitting method, the complicated relaxation spectra were resolved into several elementary Debye peaks, which corresponded to the reorientation transitions of O atoms at different octahedral interstitial sites. The number of the peaks depended upon the Ti concentration. The calculation results of the site energies show that the interstitial oxygen atoms preferentially occupy the octahedral interstitial site, which has nearest-neighbor Ti substitutional atoms. Therefore, substitutional Ti solutes will markedly influence the Snoek relaxation behavior in Nb-Ti-O ternary system, even if the concentration of Ti is rather low.

Keywords

Internal Friction Interstitial Atom Elementary Peak Matrix Atom Octahedral Interstitial Site 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Innovative Materials Engineering LaboratoryNational Institute for Materials ScienceTsukubaJapan

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