Crystallographic orientation analysis in HDDR process of anisotropic Nd-Fe-B magnet powders

Rina Takizawa, Masaru Itakura, Nobuhiro Katayama, Koichiro Morimoto

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Microstructural changes and crystallographic orientation information in the hydrogenation-decomposition-desorption-recombination (HDDR) process of Nd-Fe-B alloy were investigated using electron backscatter diffraction (EBSD) and precession electron diffraction (PED) in order to understand the mechanism of anisotropy inducement in the HDDR process. Recombined Nd2Fe14B grains were found to nucleate at the interfaces between NdH2 and α-Fe grains and to have a [0 0 1]-oriented texture from the beginning of the recombination reaction. The Fe grains form with alignment of one of the 〈1 1 3〉 directions at decomposed stage. This suggests that α-Fe most likely induces texture development of recombined Nd2Fe14B.

本文言語英語
ページ(範囲)187-194
ページ数8
ジャーナルJournal of Magnetism and Magnetic Materials
433
DOI
出版ステータス出版済み - 7 1 2017

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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