Plasticity improvement of a bulk amorphous alloy based on its viscoelastic nature

Chang Myeon Lee, Kyoung W. Park, Jae-chul Lee

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This study examines the fundamental issue of whether an elastic shear stress imposed on amorphous alloys causes structural changes during quasistatic loading. In order to deliver elastic shear stress to the workpieces, a quasistatic shear deforming device was designed. With repeated application of elastic shear stress, the plasticity of the shear-deformed amorphous alloys increased while the yield strength decreased. These behaviors were analyzed from the perspective of the structural changes associated with the viscoelastic nature of amorphous alloys.

Original languageEnglish
Pages (from-to)802-805
Number of pages4
JournalScripta Materialia
Volume59
Issue number8
DOIs
Publication statusPublished - 2008 Oct 1

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Keywords

  • Bulk amorphous alloy
  • ECAP
  • Free volume
  • Plasticity

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys

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