Synthesis and devitrification of glassy Zr-Ti-Ni and Zr-Hf-Ni ternary alloys

Joysurya Basu, D. V. Louzguine, A. Inoue, S. Ranganathan

Research output: Contribution to journalConference articlepeer-review

8 Citations (Scopus)

Abstract

Two alloys of nominal compositions Zr41.5Ti 41.5Ni17 and Zr41.5Hf41.5Ni 17 have been melt spun at 40 ms-1 wheel speed. Under this processing condition Zr-Ti-Ni alloy becomes amorphous and the Zr-Hf-Ni alloy precipitates a cubic phase with 4.95 Å lattice parameter in the amorphous matrix. The Zr-Ti-Ni alloy, upon annealing, precipitates a nanoquasicrystalline phase, which at the later stages of crystallisation transforms into cF96 NiZr2 phase. The amorphous phase in Zr-Hf-Ni alloy upon annealing precipitates the same cubic phase with 4.95 Å lattice parameter. The lower glass forming ability of Zr-Hf-Ni compared to Zr-Ti-Ni and nanoquasicrystallisation in Zr-Ti-Ni alloy can be explained by taking into consideration the atomic size differences among Ti, Zr and Hf.

Original languageEnglish
Pages (from-to)270-275
Number of pages6
JournalJournal of Non-Crystalline Solids
Volume334-335
DOIs
Publication statusPublished - 2004 Mar 15
Event8th International Conference on Quasicrystals - Bangalore, India
Duration: 2002 Sep 82002 Sep 13

ASJC Scopus subject areas

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

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