Microstructure and Magnetostriction of Rapid-Solidified Fe-15 at % Ga Alloy

Chihiro Saito, Yasubumi Furuya, Teiko Okazaki, Takashi Matsuzaki, Tadao Watanabe

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Melt-spun, rapid solidified Fe-Ga ribbon sample exhibited large magnetostriction and good ductility as compared with conventional bulk sample. But the origin was not clear yet. In order to investigate the occurrence of large magnetostriction in Fe-Ga ribbon sample, the correlation between magnetostriction and the crystal grain morphology was inspected in detail by SEM/EBSP method for Fe-15at%Ga alloy. In comparison with as-spun ribbon sample, short-time (0.5 h) heat treated ribbon had stronger [100] oriented texture and exhibited larger magnetostriction of 140 ppm (× 10-6) at 800kA/m. These phenomena suggest that such a large magnetostriction is caused by the release of considerable large internal stresses in as-spun ribbon as well as the remained strong textures after annealing.

Original languageEnglish
Pages (from-to)193-198
Number of pages6
JournalMaterials Transactions
Issue number2
Publication statusPublished - 2004 Feb
Externally publishedYes


  • Actuator
  • Crystalline texture
  • Iron-gallium alloys
  • Magnetostriction
  • Melt-spinning method
  • Rapid-solidification
  • Sensor

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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