Recovering compressive plasticity of bulk metallic glasses by high-temperature creep

Y. Tong, W. Dmowski, Yoshihiko Yokoyama, G. Wang, P. K. Liaw, T. Egami

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Most bulk metallic glasses fail mechanically in a brittle manner, without much plasticity. Annealing at a temperature below the glass transition temperature typically results in structural relaxation and even more enhanced brittleness. However, we report here that significant plasticity can be recovered if the sample is subjected to stress during annealing, resulting in thermomechanical creep. The structural analysis indicates that the high-temperature creep alleviates the effect of the structural relaxation and thus leads to structural rejuvenation and improved plasticity.

Original languageEnglish
Pages (from-to)570-573
Number of pages4
JournalScripta Materialia
Volume69
Issue number8
DOIs
Publication statusPublished - 2013 Oct 1

Keywords

  • Bulk metallic glasses
  • Creep
  • Plasticity
  • X-ray diffraction

ASJC Scopus subject areas

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

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