Crystallization behaviours around the glass transition temperature in an amorphous Fe-Nb-B alloy

Akihiko Hirata, Yoshihiko Hirotsu, Eiichiro Matsubara

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Crystallization behaviours around the glass transition temperature in an amorphous Fe70Nb10B20 alloy were investigated by means of transmission electron microscopy. Dense bcc-Fe nanocrystals initially appeared as the primary phase, followed by the dense formation of the (Fe,Nb)23B6 nanocrystalline phase. The bcc-Fe nanocrystals were formed even by annealing at a temperature that is 38 K lower than the glass transition temperature. A difference of the low temperature behaviours between the present conventional amorphous alloy and a bulk metallic glass was discussed.

Original languageEnglish
Pages (from-to)796-801
Number of pages6
JournalIntermetallics
Volume17
Issue number10
DOIs
Publication statusPublished - 2009 Oct 1
Externally publishedYes

Fingerprint

Amorphous alloys
Crystallization
Nanocrystals
Metallic glass
Annealing
Transmission electron microscopy
Temperature
Glass transition temperature

Keywords

  • B. Glasses, metallic
  • D. Microstructure (as-cast, deformation-induced, recrystallization-induced)
  • F. Electron microscopy, transmission

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Crystallization behaviours around the glass transition temperature in an amorphous Fe-Nb-B alloy. / Hirata, Akihiko; Hirotsu, Yoshihiko; Matsubara, Eiichiro.

In: Intermetallics, Vol. 17, No. 10, 01.10.2009, p. 796-801.

Research output: Contribution to journalArticle

Hirata, Akihiko ; Hirotsu, Yoshihiko ; Matsubara, Eiichiro. / Crystallization behaviours around the glass transition temperature in an amorphous Fe-Nb-B alloy. In: Intermetallics. 2009 ; Vol. 17, No. 10. pp. 796-801.
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