Grain boundary migration in Fe-3mass%Si alloy bicrystals under a magnetic field
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概要
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Grain boundary migration under a magnetic field was studied using Fe-3mass%Si alloy bicrystals with (001)/Σ5 (φ=36°) and (001>/random (φ0=45°) tilt boundaries at temperatures between 1 223 K and 1 323 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.
- （社）日本鉄鋼協会の論文
- 2010-04-15
著者
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TSUREKAWA Sadahiro
Department of Machine Intelligence and Systems Engineering, Graduate School of Engineering, Tohoku U
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Lejcek Pavel
Institute Of Physics Academy Of Sciences Of The Czech Republic
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INOUE Kyosuke
Department of Nanomechanics, Graduate School of Engineering, Tohoku University
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Tsurekawa Sadahiro
Department Of Materials Science And Engineering Graduate School Of Science And Technology Kumamoto U
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Inoue Kyosuke
Department Of Nanomechanics Graduate School Of Engineering Tohoku University
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Sadahiro Tsurekawa
Department of Materials Science and Engineering, Graduate School of Science and Technology, Kumamoto University
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Kyosuke Inoue
Department of Nanomechanics, Graduate School of Engineering, Tohoku University
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Lejček P
Institute of Physics, Academy of Sciences of the Czech Republic
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