Phase diagram of crystallization of amorphous Nd-Fe-B alloys

Katsuhisa Nagayama, Hiromitsu Ino, Takateru Umeda

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Crystallization processes for a range of amorphous Fe1-x (Nd1-yBy)x alloys (0.1≤x≤0.6, 0≤y≤1) have been investigated by calorimetry, X-ray diffraction, Mossbauer spectroscopy and magnetization. The phase regions of formation of various phases included metastable ones have been determined. The metastable Nd2Fe23B3 phase is formed at a boron-rich region (0.18≤x≤0.27, 0.61≤y≤0.78) in the temperature range from 900 to 1000 K. The metastable NdFe12B6 phase only appears together with Nd2Fe23B3 and is not formed in the alloy of the stoichiometric composition of the compound (Fe0.63Nd0.05B0.32).

Original languageEnglish
Pages (from-to)720-728
Number of pages9
JournalNippon Kinzoku Gakkai-si
Volume54
Issue number6
Publication statusPublished - 1990 Jun
Externally publishedYes

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Metastable phases
Crystallization
Phase diagrams
phase diagrams
crystallization
boron
Boron
heat measurement
Mossbauer spectroscopy
Calorimetry
magnetization
Magnetization
diffraction
spectroscopy
X ray diffraction
x rays
Chemical analysis
temperature
Temperature

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Phase diagram of crystallization of amorphous Nd-Fe-B alloys. / Nagayama, Katsuhisa; Ino, Hiromitsu; Umeda, Takateru.

In: Nippon Kinzoku Gakkai-si, Vol. 54, No. 6, 06.1990, p. 720-728.

Research output: Contribution to journalArticle

Nagayama, Katsuhisa ; Ino, Hiromitsu ; Umeda, Takateru. / Phase diagram of crystallization of amorphous Nd-Fe-B alloys. In: Nippon Kinzoku Gakkai-si. 1990 ; Vol. 54, No. 6. pp. 720-728.
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