Bulk metallic glasses: Smaller is softer

Y. J. Huang; J. Shen; J. F. Sun

doi:10.1063/1.2696502

Bulk metallic glasses: Smaller is softer

Y. J. Huang^*
, J. Shen
, J. F. Sun

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

251 Scopus citations

Abstract

The authors report on the dramatic effect of sample size on the plastic deformation capability of a Ti-based bulk metallic glass. Compared with the larger one, the smaller size glassy alloy with the same chemical composition exhibits significantly enhanced plasticity, suggesting a "smaller is softer" trend of metallic glasses. The phenomenon is attributed to the fact that the smaller size alloy, which experienced a faster cooling rate during solidification, contains a larger amount of heats of relaxation and crystallization, favoring the preferential nucleation of shear bands and thus allowing enhanced plasticity upon compressive loading.

Original language	English
Article number	081919
Journal	Applied Physics Letters
Volume	90
Issue number	8
DOIs	https://doi.org/10.1063/1.2696502
State	Published - 2007
Externally published	Yes

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title = "Bulk metallic glasses: Smaller is softer",

abstract = "The authors report on the dramatic effect of sample size on the plastic deformation capability of a Ti-based bulk metallic glass. Compared with the larger one, the smaller size glassy alloy with the same chemical composition exhibits significantly enhanced plasticity, suggesting a {"}smaller is softer{"} trend of metallic glasses. The phenomenon is attributed to the fact that the smaller size alloy, which experienced a faster cooling rate during solidification, contains a larger amount of heats of relaxation and crystallization, favoring the preferential nucleation of shear bands and thus allowing enhanced plasticity upon compressive loading.",

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doi = "10.1063/1.2696502",

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AU - Shen, J.

AU - Sun, J. F.

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N2 - The authors report on the dramatic effect of sample size on the plastic deformation capability of a Ti-based bulk metallic glass. Compared with the larger one, the smaller size glassy alloy with the same chemical composition exhibits significantly enhanced plasticity, suggesting a "smaller is softer" trend of metallic glasses. The phenomenon is attributed to the fact that the smaller size alloy, which experienced a faster cooling rate during solidification, contains a larger amount of heats of relaxation and crystallization, favoring the preferential nucleation of shear bands and thus allowing enhanced plasticity upon compressive loading.

AB - The authors report on the dramatic effect of sample size on the plastic deformation capability of a Ti-based bulk metallic glass. Compared with the larger one, the smaller size glassy alloy with the same chemical composition exhibits significantly enhanced plasticity, suggesting a "smaller is softer" trend of metallic glasses. The phenomenon is attributed to the fact that the smaller size alloy, which experienced a faster cooling rate during solidification, contains a larger amount of heats of relaxation and crystallization, favoring the preferential nucleation of shear bands and thus allowing enhanced plasticity upon compressive loading.

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U2 - 10.1063/1.2696502

DO - 10.1063/1.2696502

M3 - 文章

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SN - 0003-6951

VL - 90

JO - Applied Physics Letters

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Bulk metallic glasses: Smaller is softer

Abstract

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