Education

• 2004: B. Engineering, Tohoku University
• 2006: Master of Engineering, Tohoku University
• 2009: Ph.D., Tohoku University

Docter's Degree

• 2009: Department of Nanomechanics, Graduate School of Engineering, Tohoku University
• Awarded the Ph.D. for a thesis entitled "Effects of magnetic-field on elemental process for microstructural development of iron-based polycrystalline materials"

Research and professional experience

• 2007 to 2009: Research Fellowship for Young Scientists, Japan Society for the Promotion of Science
• 2009 to present: Assistant Professor at Tohoku University

Professional Societies

• Japan Institute of Metals
• Iron and Steel Institute of Japan

Research Interests

• Materials processing in magnetic field
• Grain boundarty Engineering

Publications

• Ryohei Sumi, Naoki Toda, Hiromichi Fujii and Sadahiro Tsurekawa: Impact of a magnetic field on grain boundary energy in 99.99% iron and iron-tin alloy, Review on Advanced Materials Science, 21 (2009) in press.
• Hiromichi Fujii, Victoria A. Yardley, Takashi Matsuzaki and Sadahiro Tsurekawa: Nanocrystallization of Fe73.5Si13.5B9Nb3Cu1 soft-magnetic alloy from amorphous precursor in a magnetic field, Journal of Materials Science, 43 (2008), 3837-3847.
• Victoria A. Yardley, Sadahiro Tsurekawa, Hiromichi Fujii and Takashi Matsuzaki: Thermodynamic Study of Magnetic Field-Enhanced Nanocrystallisation in Amorphous Fe-Si-B(-Nb-Cu), Materials Transactions, 48 (2007), 2826-2832.
• S. Tsurekawa, H. Fujii, V. A. Yardley, T. Matsuzaki and T. Watanabe:Crystallization Kinetics and Texture Evolution in Iron-based Amorphous Alloys under a Magnetic Field, Materials Science Forum, 558-559 (2007), 1371-1376.
• Hiromichi Fujii, Takashi Matsuzaki and Sadahiro Tsurekawa: Optimization of microstructure in iron-based nanocrystalline soft magnetic materials by magnetic crystallization towards innovation of magnetic properties, Proceedings of the 5th International Symposium on Electromagnetic Processing of Materials, (2006), 567-572.
• H. FUJII, S. TSUREKAWA, T. MATSUZAKI and T. WATANABE: Evolution of a sharp {110} texture in microcrystalline Fe78Si9B13 during magnetic crystallization from the amorphous phase, Philosophical Magazine Letters, 86 (2006), 113-122.
• T. Watanabe, S. Tsurekawa, H. Fujii and T. Kanno: The Control of Texture and Grain Boundary Microstructure by Magnetic Annealing, Materials Science Forum, 495-497 (2005), 1151-1158.

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