A parameter governing the plasticity of Cu-Zr containing bulk metallic glasses

Seok Woo Lee, Chang Myun Lee, Jae Pyoung Ahn, Yu Chan Kim, Jae Chul Lee

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Experiments were conducted on bulk metallic glasses (BMGs) to identify a crucial factor that governs the degree of the plasticity shown by these alloys. It was found that in situ formation of nanocrystallites, which is known as the deformation-induced nanocrystallization, play a key role in providing initiation sites of the local deformation, indicating that a high degree of plasticity could be achieved from BMGs in which deformation facilitates nanocrystallization. The degree of this deformation-induced nanocrystallization was found to be strongly dependent on the activation energy for crystallization. In this paper, we report that a factor governing the plasticity of BMGs lies in the activation energy for crystallization.

Original languageEnglish
Pages (from-to)172-175
Number of pages4
JournalMaterials Science and Engineering A
Volume448-451
DOIs
Publication statusPublished - 2007 Mar 25

Keywords

  • Bulk metallic glass
  • Deformation-induced crystallization
  • Plasticity

ASJC Scopus subject areas

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

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