Impact of interplay between magnetic field, transformation strain, and coarsening on variant selection in L 10-type FePd

N. Ueshima, M. Yoshiya, H. Yasuda, T. Fukuda, T. Kakeshita

研究成果: Article査読

6 被引用数 (Scopus)

抄録

Variant selection of L10-type ferromagnetic alloys has been numerically investigated using the phase-field modeling, to clarify the phenomena at greater temporal and spatial resolution and to reveal the underlying mechanism. The duration for which the external magnetic field is effective is found to be very short, and variant selection is significantly affected by not only direct response to the external magnetic field but also their interplay between the field, intrinsic transformation strain, and various thermodynamic energy components involved in the course of microstructure evolution. The detailed mechanism of the interplay was quantitatively analyzed in terms of the driving force for the variant selection, by partitioning it into the various energy components. Careful examination of the variant selection at the very early stage revealed that the slight difference in size and configuration of variants during disorder-to-order transition realized by the interplay between transformation strain and external field is essentially needed before proceeding to the latter stage of the variant selection driven by interface energy.

本文言語English
論文番号073501
ジャーナルJournal of Applied Physics
115
7
DOI
出版ステータスPublished - 2014 2月 21
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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