Damping properties of hydrogen-absorbed rod metallic glasses

M. Hasegawa, S. Yamaura, H. Kato, K. Amiya, N. Nishiyama, A. Inoue

Research output: Contribution to journalConference articlepeer-review

18 Citations (Scopus)

Abstract

Internal friction of hydrogen-absorbed Zr-Al-Ni-Cu-Pd metallic glasses has been investigated using rod samples. A broad peak is observed around 230 K in the temperature dependence of internal friction. Strain amplitude and frequency dependences of internal friction have been also investigated. The activation energy of hydrogen jumps and pre-factor estimated from the Arrhenius plots on the basis of the frequency dependence are about 0.4 eV and 3×10-13 s, respectively. Effects of hydrogen concentration on the temperature dependence of internal friction have been also clarified. It is found that the peak temperature decreases with increasing hydrogen concentration and that the peak internal friction increases linearly with hydrogen concentration up to 1 at.%.

Original languageEnglish
Pages (from-to)37-41
Number of pages5
JournalJournal of Alloys and Compounds
Volume355
Issue number1-2
DOIs
Publication statusPublished - 2003 Jun 30
EventProceedings of the International Symposium on High Damping Materials 2002 - Tokyo, Japan
Duration: 2002 Aug 222002 Aug 24

Keywords

  • Amorphous materials
  • Elasticity
  • Strain

ASJC Scopus subject areas

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

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