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

Chang Myeon Lee, Kyoung Won Park, Jae Chul Lee

    Research output: Contribution to journalArticlepeer-review

    14 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

    Bibliographical note

    Funding Information:
    This research was supported by grants from the Basic Research Program (R01-2004-000-10891-0) of the Ministry of Science and Technology, Korea.

    Keywords

    • Bulk amorphous alloy
    • ECAP
    • Free volume
    • Plasticity

    ASJC Scopus subject areas

    • General Materials Science
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys

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