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Title: Transition of temporal scaling behavior in percolation assisted shear-branching structure during plastic deformation

Abstract

This study 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 –2 s –1; the disordered structure dominated at other temperature and strain rate. It can be deduced from the percolation theory that the compressive ductility, ec, 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 –2 s –1.

Authors:
 [1];  [1];  [2];  [3]
  1. Zhengzhou Univ., Zhengzhou (China)
  2. Shanghai Univ., Shanghai (China)
  3. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Univ. of Tennessee, Knoxville, TN (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE); USDOE National Energy Technology Laboratory (NETL)
OSTI Identifier:
1361677
Grant/Contract Number:  
FE0011194; FE0024054
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; applied mathematics; scaling laws

Citation Formats

Ren, Jingli, Chen, Cun, Wang, Gang, and Liaw, Peter K. Transition of temporal scaling behavior in percolation assisted shear-branching structure during plastic deformation. United States: N. p., 2017. Web. doi:10.1038/srep45083.
Ren, Jingli, Chen, Cun, Wang, Gang, & Liaw, Peter K. Transition of temporal scaling behavior in percolation assisted shear-branching structure during plastic deformation. United States. doi:10.1038/srep45083.
Ren, Jingli, Chen, Cun, Wang, Gang, and Liaw, Peter K. Wed . "Transition of temporal scaling behavior in percolation assisted shear-branching structure during plastic deformation". United States. doi:10.1038/srep45083. https://www.osti.gov/servlets/purl/1361677.
@article{osti_1361677,
title = {Transition of temporal scaling behavior in percolation assisted shear-branching structure during plastic deformation},
author = {Ren, Jingli and Chen, Cun and Wang, Gang and Liaw, Peter K.},
abstractNote = {This study 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 × 10–2 s–1; the disordered structure dominated at other temperature and strain rate. It can be deduced from the percolation theory that the compressive ductility, ec, 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 × 10–2 s–1.},
doi = {10.1038/srep45083},
journal = {Scientific Reports},
number = ,
volume = 7,
place = {United States},
year = {Wed Mar 22 00:00:00 EDT 2017},
month = {Wed Mar 22 00:00:00 EDT 2017}
}

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