Thermodynamic origins of shear band formation and the universal scaling law of metallic glass strength

Y. H. Liu, C. T. Liu, W. H. Wang, A. Inoue, Toshio Sakurai, M. W. Chen

    Research output: Contribution to journalArticlepeer-review

    113 Citations (Scopus)

    Abstract

    We report a universal scaling law, τy=3R(Tg-RT)/V, that uncovers an inherent relationship of the yield strength τy with the glass transition temperature Tg and molar volume V of metallic glasses. This equation is derived from fundamental thermodynamics and validated by various metallic glasses with well-defined yielding. The linearity between τy and Tg demonstrates the intrinsic correlation between yielding and glass-liquid transition, which contributes to the basic understanding of the strength and deformation of glassy alloys.

    Original languageEnglish
    Article number065504
    JournalPhysical review letters
    Volume103
    Issue number6
    DOIs
    Publication statusPublished - 2009 Aug 7

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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