A new type of FCT martensite phase in single-crystalline Fe3Pt Invar alloy

Masataka Yamamoto, Sayaka Sekida, Takashi Fukuda, Tomoyuki Kakeshita, Kohki Takahashi, Keiichi Koyama, Hiroyuki Nojiri

研究成果: Article査読

9 被引用数 (Scopus)

抄録

Martensitic transformation in a highly ordered Fe3Pt has been investigated by magnetization and X-ray diffraction measurements. We confirmed that a new type of face-centered tetragonal (FCT) martensite phase appears below 60 K in Fe3Pt with a degree of order S = 0.88. The tetragonality c/a gradually increases with decreasing temperature, and is approximately 1.005 at 10 K. This is in contrast to the tetragonality c/a < 1 generally observed in the FCT martensite with a degree of order less than 0.8. The spontaneous magnetization increases in association with the transformation.

本文言語English
ページ(範囲)8530-8533
ページ数4
ジャーナルJournal of Alloys and Compounds
509
34
DOI
出版ステータスPublished - 2011 8 25

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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