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Title: Three-dimensional phase-field simulation on the deformation of metallic glass nanowires
Authors: Zhang, HY
Zheng, GP 
Keywords: Ductility
Metallic glasses
Phase-field modeling
Shear banding
Issue Date: 2014
Publisher: Elsevier
Journal: Journal of alloys and compounds 
Abstract: It is very challenging to investigate the deformation mechanisms in micro- and nano-scale metallic glasses with diameters below several hundred nanometers using the atomistic simulation or the experimental approaches. In this work, we develop the fully three-dimensional phase-field model to bridge this gap and investigate the sample size effects on the deformation behaviors of metallic glass nanowires. The initial deformation defects on the surface are found to significantly affect the mechanical strength and deformation mode of nanowires. The improved ductility of metallic glass nanowires could be related with the multiple shear bands initiated from the nanowire surfaces.
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2013.12.114
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