On long-term stability of metallic glasses

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2 Citations (Scopus)

Abstract

Thermal stability of different types of metallic glasses and partially crystalline alloys stored for at least 15 years at ambient conditions was tested in the present work by differential scanning calorimetry in comparison with that of the original alloys tested in the as-cast state in the earlier works. The structure of the naturally aged alloys was also studied by X-ray diffractometry. The structure of a couple of selected alloys was also tested by transmission electron microscopy. Most of the alloys retained their initial structure and showed only a moderate decrease in the crystallization temperature. Only those alloys which showed visible surface oxidation (Cu-Zr-system based) were partly transformed into a crystalline state forming micron-scale Cu particles in air at ambient conditions.

Original languageEnglish
Article number1076
JournalMetals
Volume9
Issue number10
DOIs
Publication statusPublished - 2019 Oct

Keywords

  • Crystallization
  • Metallic glass
  • Structure
  • Thermal stability

ASJC Scopus subject areas

  • Materials Science(all)

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