Production of Si55Al20Fe10Ni5Cr5Zr 5 bulk amorphous alloy by hot pressing

D. V. Louzguine, Y. Kawamura, A. Inoue

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3 Citations (Scopus)

Abstract

The temperature dependence of the relative density was examined for a Si55Al20Fe10Ni5Cr5Zr 5 alloy which was produced by hot pressing of the amorphous powder during heating up to various temperatures under a critical pressure of 1.5 GPa through a heating/pressing cycle. The density of the compacts increased with increasing temperature and reached a maximum near the crystallisation temperature of 698 K. The relative density of the compacts reached 98.3% at the critical condition of 1.5 GPa and 687 K. The hardness value of the bulk specimen was 940 HV(10 gf, 0.098 N), corresponding to that of the amorphous ribbon. Exposure to higher temperatures resulted in the precipitation of the crystalline phase. The present results indicate that Si based alloys can be produced in a compact form with a low fraction of voids by hot pressing the amorphous powder.

Original languageEnglish
Pages (from-to)583-585
Number of pages3
JournalMaterials Science and Technology
Volume15
Issue number5
DOIs
Publication statusPublished - 1999 May

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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