Strengthening mechanism of Zr-based devitrified amorphous nanocomposites with quasicrystalline phases

Hyoung Seop Kim, Hidemi Kato, Akihisa Inoue

Research output: Contribution to journalConference articlepeer-review

Abstract

In order to analyse the strengthening behaviour of partially crystallised amorphous alloys with quasicrystalline precipitate phases, a phase mixture model is presented. In the model, partially crystallised amorphous alloys are regarded as composites of nanoscale quasicrystalline particles and remaining amorphous matrices; solute concentrations of the remaining matrices change with volume fraction of quasicrystalline precipitate particles depending on modes of precipitation. Investigating the solute concentration changes associated with overall mechanical properties in polymorphous mode and diffusion-controlled mode precipitation processes could prove that the phase mixture model can adequately describe the strengthening mechanism of the devitrified Zr-based amorphous quasicrystalline nanocomposites.

Original languageEnglish
Pages (from-to)205-208
Number of pages4
JournalJournal of Metastable and Nanocrystalline Materials
Volume15-16
DOIs
Publication statusPublished - 2003
EventProceedings of the 9th International Symposium on Metastable Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002) - Seoul, Korea, Republic of
Duration: 2002 Sep 82002 Sep 12

Keywords

  • Amorphous Alloys
  • Devitrification
  • Nanocomposites
  • Quasicrystalline Phases
  • Strengthening Mechanisms

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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