Temperature dependence of the yield strain of a Zr-based metallic glass at the glassy state

Hidemi Kato, Hitoshi Igarashi, Akihisa Inoue

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In the glassy temperature region from the ambient to glass transition temperature, an apparent Young's modulus (Eap), the slope of the initial linear part on the stress-strain curve, in a Zr-based metallic glass clearly depends on both temperature and strain rate, indicating that viscous contribution is included in the elastic response. Because the yield stress depends on temperature and strain rate as the same manner with Eap, the yield strain was found to keep the "universal" critical strain ∼0.020 for many metallic glasses at the ambient temperature. This suggests that the yield phenomenon is simply dominated by Eap.

Original languageEnglish
Pages (from-to)150-153
Number of pages4
JournalJournal of Alloys and Compounds
Volume483
Issue number1-2
DOIs
Publication statusPublished - 2009 Aug 26

Keywords

  • Metallic glass
  • Viscoelasticity
  • Yield criterion
  • Zr-based

ASJC Scopus subject areas

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

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