Thermal stability and viscous flow features of Al85Co2Nd4Ni5Y4 amorphous alloy

Stovko Gyurov, Georgi Stefanov, Tomasz Czeppe, Anna Sypien, Eva Fazakas, Lajos Varga, Liljana Stojanova, Krassimir Russew

Research output: Contribution to journalArticle

Abstract

The thermal stability and viscous flow behavior ofamorphous alloy Al85Co2Nd4Ni5Y4 are studied at heating rates 10 K/min and 20 KJmin. The viscosity experimental results are interpreted on the basis of the Free Volume Model. The values of the model parameters obtained are used to estimate the glass forming ability in terms of the Angell parameter value, and the fracture strength of the alloy based on its correlation with the glass transition temperature in correspondence with the equation of Yang.

Original languageEnglish
Pages (from-to)409-417
Number of pages9
JournalJournal of Chemical Technology and Metallurgy
Volume49
Issue number4
Publication statusPublished - 2014

Keywords

  • Aluminum
  • Crystallization
  • Glass forming ability
  • Mechanical properties
  • Metallic glass
  • Viscosity

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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    Gyurov, S., Stefanov, G., Czeppe, T., Sypien, A., Fazakas, E., Varga, L., Stojanova, L., & Russew, K. (2014). Thermal stability and viscous flow features of Al85Co2Nd4Ni5Y4 amorphous alloy. Journal of Chemical Technology and Metallurgy, 49(4), 409-417.