Magneto-mechanical and pseudoelastic damping of Fe-AI based single crystals

Hiroyuki Y. Yasuda, Kouki Fukushima, Yuichiro Koizumi, Yoritoshi Minamino, Yukichi Umakoshi.

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Damping behavior of Fe-16.0∼28.0at%AI and Fe-23.0at%AI-2.0at%M (M=Cr, Mn, Co, Ni) in the wide strain amplitude range was examined and the damping mechanism was discussed. In Fe-AI binary single crystals, magneto-mechanical damping caused by irreversible motion of magnetic domain walls took place at low strain amplitudes. On the other hand, pseudoelasticity based on reversible motion of 1/4(111) super- partial dislocations appeared in Fe-23.0at%AI single crystals which also contributed to the high damping capacity at high strain amplitudes. The effect of Cr, Mn, Co and Ni on the vibration attenuation of Fe-23.0at%AI crystals was also examined. As a result, Ni doping was found to be effective in the increase in both internal friction and yield strength of Fe-AI alloys.

Original languageEnglish
Pages (from-to)1630-1635
Number of pages6
JournalIsij International
Volume49
Issue number10
DOIs
Publication statusPublished - 2009

Keywords

  • Damping materials
  • Internal friction
  • Magneto-mechanical damping
  • Pseudoelasticity

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Magneto-mechanical and pseudoelastic damping of Fe-AI based single crystals'. Together they form a unique fingerprint.

Cite this