Plasticity of amorphous alloys: 2. Inhomogeneous deformation

Kyoung Won Park, Chang Myeon Lee, Jae Chul Lee

    Research output: Contribution to journalReview articlepeer-review

    7 Citations (Scopus)

    Abstract

    Studies of a number of Cu-Zr amorphous alloys have demonstrated that those exhibiting greater plastic strain during homogeneous deformation at room temperature show lower global plasticity associated with inhomogeneous deformation in a typical compression test. Using a combination of experiments and molecular dynamics simulations, we clarify this seeming paradox between the homogeneous and inhomogeneous deformation by exploring the microstructural aspects in view of the structural disordering, disorder-induced softening, and shear localization and relate these findings to the global plasticity of bulk amorphous alloys. Additional analyses were conducted to derive a simple structural parameter that allows the prediction of the global plasticity of bulk amorphous alloys.

    Original languageEnglish
    Pages (from-to)773-785
    Number of pages13
    JournalJournal of Korean Institute of Metals and Materials
    Volume47
    Issue number11
    Publication statusPublished - 2009

    Keywords

    • Amorphous alloy
    • Free volume
    • Inhomogeneous deformation
    • Plasticity
    • Shear localization

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Modelling and Simulation
    • Surfaces, Coatings and Films
    • Metals and Alloys

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