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

doi:10.1103/PhysRevLett.103.065504

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 journal › Article › peer-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 language	English
Article number	065504
Journal	Physical review letters
Volume	103
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.103.065504
Publication status	Published - 2009 Aug 7

ASJC Scopus subject areas

Physics and Astronomy(all)

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AU - Sakurai, Toshio

AU - Chen, M. W.

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