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

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

研究成果: Article査読

4 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1630-1635
ページ数6
ジャーナルIsij International
49
10
DOI
出版ステータスPublished - 2009
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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