Nanoindentation analysis of time-dependent deformation in as-cast and annealed Cu-Zr bulk metallic glass

Byung Gil Yoo, Jun Hak Oh, Yong Jae Kim, Kyoung Won Park, Jae Chul Lee, Jae Il Jang

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The room-temperature time-dependent deformation of a Cu-Zr binary bulk metallic glass was investigated by performing nanoindentation creep experiments. Experimental results show that creep is much more pronounced in the as-cast sample than in the annealed sample. In both cases, the amount of creep displacement was found to increase with the loading rate. From the results, the influence of structural state and indentation rate on the creep behavior is discussed. Additionally, the stress exponent for the steady-state creep is estimated from the curve of creep displacement vs. holding time.

Original languageEnglish
Pages (from-to)1898-1901
Number of pages4
JournalIntermetallics
Volume18
Issue number10
DOIs
Publication statusPublished - 2010 Oct

Keywords

  • A. Bulk metallic glass
  • B. Creep
  • B. Mechanical properties
  • F. Mechanical testing

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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