Correlation between the glass-forming ability and activation energy of crystallization for Zr75-x Ni25Al x metallic glasses

Yan Hui Li, Wei Zhang, Chuang Dong, Jian Bing Qiang, Akihiro Makino

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The thermal stability and the kinetics of glass transition and crystallization for Zr75-x Ni25Al x (x = 8-15) metallic glasses were investigated using differential scanning calorimetry (DSC) under continuous heating conditions. The apparent activation energy of glass transition rises monotonously with the Al content increasing; the activation energy of crystallization increases with Al changing from 8at% to 15at%, and then decreases with Al further up to 24at%, which exhibits a good correlation to the thermal stability and the glass-forming ability (GFA). The Zr 60Ni25Al15 metallic glass with the largest supercooled liquid region and GFA possesses the highest activation energy of crystallization. The relation between the thermal stability, GFA and activation energy of crystallization was discussed in terms of the primary precipitated phases.

Original languageEnglish
Pages (from-to)445-449
Number of pages5
JournalInternational Journal of Minerals, Metallurgy and Materials
Volume20
Issue number5
DOIs
Publication statusPublished - 2013 May

Keywords

  • activation energy
  • crystallization kinetics
  • glass-forming ability
  • metallic glass
  • thermal stability

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Geochemistry and Petrology
  • Metals and Alloys
  • Materials Chemistry

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