Effect of stress states on the deformation behavior of Cu-based bulk metallic glass in the supercooled liquid region

E. S. Park, H. J. Kim, J. C. Bae, M. Y. Huh

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The effect of stress states on the deformation behavior of the Cu 54Zr22Ti18Ni6 bulk metallic glass (BMG) alloy was studied in the supercooled liquid region. At 723 K, Newtonian plastic flow governed the deformation during the compression test, whereas strain-hardening occurred during the tensile test. At 733 K, a fast failure was observed during tensile test. The diffusion rate of Cu atoms in the BMG alloy plays an important role in the deformation behavior. The fast diffusion of Cu atoms under the tensile stress state caused faster crystallization leading to a fast strain-hardening during the tensile plastic deformation.

Original languageEnglish
Pages (from-to)S31-S35
JournalJournal of Alloys and Compounds
Volume586
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2014

Keywords

  • Bulk metallic glass
  • Deformation behavior
  • Diffusion
  • Supercooled liquid region

ASJC Scopus subject areas

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

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