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, T. Sakurai, M. W. Chen

Research output: Contribution to journalArticlepeer-review

130 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
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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