Grain Boundary Migration in Fe-3mass%Si Alloy Bicrystals under a Magnetic Field

• Tsurekawa Sadahiro

  Department of Materials Science and Engineering, Graduate School of Science and Technology, Kumamoto University

• Inoue Kyosuke

  Department of Nanomechanics, Graduate School of Engineering, Tohoku University

• Lejček Pavel

  Institute of Physics, Academy of Sciences of the Czech Republic

抄録

Grain boundary migration under a magnetic field was studied using Fe–3mass%Si alloy bicrystals with ‹001›/Σ5 (φ=36°) and ‹001›/random (φ=45°) tilt boundaries at temperatures between 1223 K and 1323 K. A capillarity method (Sun and Bauer method) was used to observe grain boundary migration. A 6 T magnetic field was applied parallel to the [100] direction, which is one of easy magnetization directions, in a grain whose area increases with occurring grain boundary migration. It was found that the application of a magnetic field observably increased the velocity of grain boundary migration for both bicrystals. The abrupt change in the velocity of grain boundary migration was observed at a critical capillary driving force irrespective of whether the magnetic field was applied. However, this critical driving force was decreased by application of a magnetic field. It was suggested that the magnetic field act as a driving force for grain boundary migration rather than increase its mobility.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 50 (4), 591-595, 2010

  一般社団法人 日本鉄鋼協会

キーワード

• grain boundary migration
• magnetic field
• grain boundary character
• Fe–Si alloy
• bicrystal

詳細情報

• CRID: 1390001206489039744
• NII論文ID: 10027370212
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.50.591
• ISSN: 13475460
• ISSN: 09151559
• HANDLE: 2298/19258
• Web Site: https://kumadai.repo.nii.ac.jp/records/23786
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/50/4/50_4_591/_pdf
• 本文言語コード: en
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