Evaluation of glass-forming ability for metallic glasses from time-reduced temperature-transformation diagram

Akira Takeuchi, Akihisa Inoue

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Glass forming ability (GFA) for the formation of metallic glasses was evaluated on the basis a of time-reduced temperature transformation diagram using reduced parameters. A equation was proposed for the evaluation of GFA which included a viscosity term at melting temperature (Tm) for calculating the critical cooling rate (Rc) of pure metals and two probability terms incorporated with the thermodynamic quantities. The probability terms were introduced to account for the decrease in Rc for metallic glasses. The results showed that the viscosity at Tm was a key factor for the formation of metallic glasses.

Original languageEnglish
Pages (from-to)2374-2381
Number of pages8
JournalMaterials Transactions
Volume42
Issue number11
DOIs
Publication statusPublished - 2001 Nov

Keywords

  • Critical cooling rate
  • Glass-forming ability
  • Melting temperature
  • Metallic glass
  • Reduced glass transition temperature
  • Time-reduced temperature-transformation diagram
  • Viscosity

ASJC Scopus subject areas

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

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