Stability of ordered L12 phase in Ni3Fe-Ni 3X (X:Si and Al) pseudobinary alloys

Y. Himuro, Y. Tanaka, N. Kamiya, Ikuo Ohnuma, R. Kainuma, K. Ishida

研究成果: Article査読

32 被引用数 (Scopus)

抄録

The phase equilibria between γ (A1) and γ′ (L1 2) in Ni3Fe-Ni3Si and Ni3Fe-Ni 3Al pseudobinary sections were investigated to evaluate the interaction between the chemical and magnetic orderings on phase stability. Order-disorder and Curie temperatures in these sections were determined by means of metallographic observation, electron probe microanalysis, differential scanning calorimetry, electrical resistivity and vibrating sample magnetometry. It was clarified that the γ to γ′ ordering reaction exhibits first-order characteristics with the γ+γ′ two-phase field and that the Curie temperature of the γ′ ordered phase shows higher deviation from that of the γ disordered phase. Thermodynamic stability of the γ′ phase was discussed in terms of atomic and magnetic orderings, and the γ/γ′ transition temperature in paramagnetic state for Ni3Fe phase was estimated by extrapolation to the Ni 3Fe side in the pseudobinary sections.

本文言語English
ページ(範囲)635-643
ページ数9
ジャーナルIntermetallics
12
6
DOI
出版ステータスPublished - 2004 6月

ASJC Scopus subject areas

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

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