Shape memory effect and magnetostriction in rapidly solidified Fe-29.6 at%Pd alloy

Yasubumi Furuya, Nesbitt W. Hagood, Hisamichi Kimura, Tadao Watanabe

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)

Abstract

Rapidly solidified ferromagnetic shape memory Fe-29.6 at% Pd alloy was fabricated to develop a new type of actuator material responded to magnetic field. The thin ribbon samples which were made by the originally designed electromagnetically controlled nozzleless melt-spinning method showed stronger crystal anisotropy and larger shape memory effect. Magnetostriction increased with increasing magnetic field and its value changed with increasing temperature up to about 1800 microstrain at an applied magnetic field, H=8.0 × 105 A/m (= 10 kOe), at just below the inverse phase transformation temperature (As). This phenomenon may be caused by the re-arrangements of the activated martensitic twin variants due to applying magnetic field. The dependencies of shape memory effect and giant magnetostriction on metallurgical microstructures are discussed from the viewpoint of the crystal anisotropy and the grain boundary character distribution.

Original languageEnglish
Pages (from-to)1248-1254
Number of pages7
JournalMaterials Transactions, JIM
Volume39
Issue number12
DOIs
Publication statusPublished - 1998 Dec

Keywords

  • Crystal anisotropy
  • Giant magnetostriction
  • Grain boundary
  • Magnetic shape memory alloy
  • Martensitic transformation
  • Melt-spinning method
  • Rapid-solidification

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Shape memory effect and magnetostriction in rapidly solidified Fe-29.6 at%Pd alloy'. Together they form a unique fingerprint.

Cite this