Devitrification of Ni-based glassy alloys containing noble metals in relation with the supercooled liquid region

Dmitri V. Louzguine, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

The formation of the supercooled liquid region and devitrification behavior of Ni-based glassy alloys were studied by using X-ray diffraction, transmission electron microscopy, differential scanning calorimetry and isothermal calorimetry. oC68 Ni10Zr7-type phase is primarily formed in the studied alloys in the initial stage of the devitrification process by nucleation and three-dimensional diffusion controlled growth. The replacement of Cu by Ni in Cu55Zr30Ti10Pd5 glassy alloy induces precipitation of oC68 Ni10Zr7 phase directly from the glassy phase. The reasons for such a behavior are discussed taking into account mixing enthalpy in a liquid state and the interval of the supercooled liquid region.

Original languageEnglish
Pages (from-to)161-165
Number of pages5
JournalJournal of Non-Crystalline Solids
Volume337
Issue number2
DOIs
Publication statusPublished - 2004 Jul 1

ASJC Scopus subject areas

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

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