Paradoxical phenomena between the homogeneous and inhomogeneous deformations of metallic glasses

Kyoung Won Park, Chang Myeon Lee, Mi Rim Lee, Eric Fleury, Michael L. Falk, Jae-chul Lee

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Experiments in binary alloys demonstrate that metallic glasses exhibiting more plastic strain during homogeneous deformation tend to show lower global plasticity during inhomogeneous deformation. Testing of Cu-Zr binary alloys supports the hypothesis that the formation energy of a shear transformation zone, as extracted from the experimental data, is related to the homogeneous flow rate. We also report the microstructural aspects that control the global plasticity of metallic glasses in the light of structural disordering, softening, and shear localization.

Original languageEnglish
Article number021907
JournalApplied Physics Letters
Volume94
Issue number2
DOIs
Publication statusPublished - 2009 Jan 23

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binary alloys
metallic glasses
plastic properties
shear
energy of formation
softening
plastics
flow velocity

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Paradoxical phenomena between the homogeneous and inhomogeneous deformations of metallic glasses. / Park, Kyoung Won; Lee, Chang Myeon; Lee, Mi Rim; Fleury, Eric; Falk, Michael L.; Lee, Jae-chul.

In: Applied Physics Letters, Vol. 94, No. 2, 021907, 23.01.2009.

Research output: Contribution to journalArticle

Park, Kyoung Won ; Lee, Chang Myeon ; Lee, Mi Rim ; Fleury, Eric ; Falk, Michael L. ; Lee, Jae-chul. / Paradoxical phenomena between the homogeneous and inhomogeneous deformations of metallic glasses. In: Applied Physics Letters. 2009 ; Vol. 94, No. 2.
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