Characteristic length scales governing plasticity/brittleness of bulk metallic glasses at ambient temperature

Y. Yang; J. C. Ye; J. Lu; P. K. Liaw; C. T. Liu

doi:10.1063/1.3290246

Characteristic length scales governing plasticity/brittleness of bulk metallic glasses at ambient temperature

Y. Yang, J. C. Ye, J. Lu, P. K. Liaw, C. T. Liu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

35 Citations (Scopus)

Abstract

In this letter, we propose a unified theory for the size-dependent plasticity of bulk metallic glasses (BMGs) at room temperature. Based on the principle of energy balance and the shear-banding kinetics, two characteristic length scales are derived. One is a sample-geometry dependent variable related to the elastic energy released to drive shear-band propagation and the other is a material-dependent constant related to the internal resistance to brittle fracture. It is shown that this unified theory is effective in explaining many unusual deformation and fracture behaviors of BMGs. © 2010 American Institute of Physics.

Original language	English
Article number	11905
Journal	Applied Physics Letters
Volume	96
Issue number	1
DOIs	https://doi.org/10.1063/1.3290246
Publication status	Published - 2010
Externally published	Yes

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title = "Characteristic length scales governing plasticity/brittleness of bulk metallic glasses at ambient temperature",

abstract = "In this letter, we propose a unified theory for the size-dependent plasticity of bulk metallic glasses (BMGs) at room temperature. Based on the principle of energy balance and the shear-banding kinetics, two characteristic length scales are derived. One is a sample-geometry dependent variable related to the elastic energy released to drive shear-band propagation and the other is a material-dependent constant related to the internal resistance to brittle fracture. It is shown that this unified theory is effective in explaining many unusual deformation and fracture behaviors of BMGs. {\textcopyright} 2010 American Institute of Physics.",

author = "Y. Yang and Ye, {J. C.} and J. Lu and Liaw, {P. K.} and Liu, {C. T.}",

year = "2010",

doi = "10.1063/1.3290246",

language = "English",

volume = "96",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Characteristic length scales governing plasticity/brittleness of bulk metallic glasses at ambient temperature

AU - Yang, Y.

AU - Ye, J. C.

AU - Lu, J.

AU - Liaw, P. K.

AU - Liu, C. T.

PY - 2010

Y1 - 2010

N2 - In this letter, we propose a unified theory for the size-dependent plasticity of bulk metallic glasses (BMGs) at room temperature. Based on the principle of energy balance and the shear-banding kinetics, two characteristic length scales are derived. One is a sample-geometry dependent variable related to the elastic energy released to drive shear-band propagation and the other is a material-dependent constant related to the internal resistance to brittle fracture. It is shown that this unified theory is effective in explaining many unusual deformation and fracture behaviors of BMGs. © 2010 American Institute of Physics.

AB - In this letter, we propose a unified theory for the size-dependent plasticity of bulk metallic glasses (BMGs) at room temperature. Based on the principle of energy balance and the shear-banding kinetics, two characteristic length scales are derived. One is a sample-geometry dependent variable related to the elastic energy released to drive shear-band propagation and the other is a material-dependent constant related to the internal resistance to brittle fracture. It is shown that this unified theory is effective in explaining many unusual deformation and fracture behaviors of BMGs. © 2010 American Institute of Physics.

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-75749136449&origin=recordpage

U2 - 10.1063/1.3290246

DO - 10.1063/1.3290246

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 96

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 1

M1 - 11905

ER -

Characteristic length scales governing plasticity/brittleness of bulk metallic glasses at ambient temperature

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