Crystalline Texture and Magnetostriction in Rapid-Solidified Fe-Pd Alloy Ribbons

• Onoki Takamasa

  Graduate School of Engineering, Tohoku University

• Yamaura Shin-ichi

  Institute for Materials Research, Tohoku University

• Furuya Yasubumi

  Faculty of Science and Engineering, Hirosaki University

• Kimura Hisamichi

  Institute for Materials Research, Tohoku University

• Matsuzaki Takashi

  Graduate School of Engineering, Tohoku University

• Watanabe Tadao

  Graduate School of Engineering, Tohoku University

抄録

Rapid-solidified ferromagnetic shape memory Fe-30.2 at. %Pd alloy ribbon has a large magnetostriction more than 1.0 × 10⁻³ (= 1000 μ-strain). This type of magnetostriction is caused by the re-arrangements of martensitic twins (i.e., variants) by the applied magnetic field, therefore, it is generally very sensitive to the crystalline texture and twin's morphology of material. In order to develop a more high performance magnetostrictive actuator material driven by smaller magnetic field, the effect of grain and twin boundary microstructures on megnetostriction was studied by changing the condition of heat treatments. For the sample with strongly (100) textured grains after oil-bath quenching, a steep increment and large strain of 0.7 × 10⁻³ was induced at a fairly low magnetic field of 35 k A·m⁻¹ (= 1.5 kOe) when the magnetic field was applied normal to the ribbon surface. On the other hand, for the sample with randomly oriented grains and excessive existence of twin boundaries by ice-water quenching after long time annealing, the induced strain was initially small and then it gradually increased up to 0.6 × 10⁻³ at 70kA·m⁻¹. This difference of sensitivity in magnetostriction behavior is discussed from the viewpoint of magnetic domain mobility in connection with grain and twin boundary microstructures.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 45 (11), 3120-3123, 2004

  公益社団法人 日本金属学会

キーワード

• ferromagnetic shape memory alloy
• shape memory effect
• magnetic field
• magnetostriction
• grain boundary characterization
• crystalline texture

詳細情報

• CRID: 1390001204250154624
• NII論文ID: 130004452310
• NII論文ID: 10014124382
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.45.3120
• COI: 1:CAS:528:DC%2BD2MXhtVShtLk%3D
• ISSN: 13475320
• ISSN: 13459678
• ISSN: http://id.crossref.org/issn/09161821
• NDL書誌ID: 7162775
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7162775
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/45/11/45_11_3120/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
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