Glassy and icosahedral phases in rapidly solidified Ti-Zr-Hf-(Fe, Co or Ni) alloys

N. Chen, D. V. Louzguine-Luzgin, S. Ranganathan, A. Inoue

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The icosahedral quasicrystalline, amorphous plus crystalline and glassy phases were formed in Ti40Zr20Hf20(3d-LTM) 20 alloys (3d-LTM=3d late transition metals Fe, Co and Ni). The icosahedral phase formed in the melt-spun Ti40Zr20Hf 20Fe20 alloy is metastable and the average size of the quasicrystalline icosahedral particles precipitated in the amorphous matrix is 5 nm. The metastable icosahedral phase transformed to a big-cubic fcc Hf 2Fe phase with the grain size of about 20 nm after annealing for 1.8 ks at 841 K. The glassy phase was formed in the melt-spun Ti40Zr 20Hf20Co20 alloy and no metastable phase was found to form during the transformation from glassy phase to a stable crystalline phase. Icosaheadral phase formed in the melt-spun Ti 40Zr20Hf20Ni20 alloy transformed to a big-cubic fcc (Zr, Ti)2Ni solid solution phase by a solid state reaction.

Original languageEnglish
Pages (from-to)2547-2551
Number of pages5
JournalJournal of Non-Crystalline Solids
Volume351
Issue number30-32
DOIs
Publication statusPublished - 2005 Sep 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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