Stability and hydrogen-induced internal friction of Ti-rich multicomponent glassy alloys

M. Hasegawa, M. Takeuchi, H. Kato, S. Yamaura, A. Inoue

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Hydrogen-induced internal friction behavior of ternary Ti 37Zr12Cu51 and quaternary Ti 34Zr11Cu47Ni8, which is also expressed by (Ti0.37Zr0.12Cu0.51) 92Ni8, glassy alloys with a wide supercooling region have been investigated by measuring temperature dependence of internal friction above 90K. It is found that they show a broad peak depending hydrogen content. With increasing hydrogen content, the peak internal friction of both glassy alloys increases, while the peak temperature decreases. It should be noted that the peak internal friction of quaternary Ti34Zr11Cu 47Ni8 glassy alloys are larger than that of ternary Ti37Zr12Cu51 glassy alloys in the hydrogen content dependence of the peak internal friction. This is attributable to the increase of local strain anisotropy due to the change of local atomic arrangement when adding Ni, i.e. the change from ternary to quaternary. On the other hand, there are no distinguished effects of the change on the hydrogen content dependence of the peak temperature, suggesting changes not only the activation energy but also the frequency factor (pre-exponential factor) in the relaxation process by the change.

Original languageEnglish
Pages (from-to)116-120
Number of pages5
JournalJournal of Alloys and Compounds
Volume372
Issue number1-2
DOIs
Publication statusPublished - 2004 Jun 9

Keywords

  • Damping material
  • Glassy alloy
  • Hydrogen
  • Internal friction
  • Ti-rich alloy

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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