Transition of Temporal Scaling Behavior in Percolation Assisted Shear-branching Structure during Plastic Deformation.

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2017
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Abstract
This paper explores the temporal scaling behavior induced shear-branching structure in response to variant temperatures and strain rates during plastic deformation of Zr-based bulk metallic glass (BMG). The data analysis based on the compression tests suggests that there are two states of shear-branching structures: the fractal structure with a long-range order at an intermediate temperature of 223 K and a larger strain rate of 2.5 × 10 s; the disordered structure dominated at other temperature and strain rate. It can be deduced from the percolation theory that the compressive ductility, e, can reach the maximum value at the intermediate temperature. Furthermore, a dynamical model involving temperature is given for depicting the shear-sliding process, reflecting the plastic deformation has fractal structure at the temperature of 223 K and strain rate of 2.5 × 10 s.
Reference Key
ren2017transitionscientific Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ren, Jingli;Chen, Cun;Wang, Gang;Liaw, Peter K;
Journal Scientific reports
Year 2017
DOI
10.1038/srep45083
URL
Keywords
osteoporosis bone density osteopenia fractal analysis dexa scan qct

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