Glass-transition process in an Au-based metallic glass

Dmitri V. Louzguine-Luzgin, Ichiro Seki, Sergey V. Ketov, Larissa V. Louzguina-Luzgina, Vladislav I. Polkin, Na Chen, Hans Fecht, Alexander N. Vasiliev, Hitoshi Kawaji

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Abstract In the present paper, the glass-transition phenomenon in an Au-based metallic glass has been studied using a step-scan calorimetry measurement. The existence of two distinct slopes within the glass-transition region one starting at low temperature (about 340 K) and the other at higher temperature (about 380 K) likely indicates two glass-transition processes. This phenomenon is rather related to different diffusion coefficients of the alloying elements in this complex alloy in solid state. Structural relaxation of the glassy phase before reaching the glass-transition region also shows a complex behavior.

Original languageEnglish
Article number17346
Pages (from-to)12-15
Number of pages4
JournalJournal of Non-Crystalline Solids
Volume419
DOIs
Publication statusPublished - 2015 Jul 1

Keywords

  • Amorphous alloy
  • Bulk metallic glass
  • Devitrification
  • Nanoscale
  • Phase transformation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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