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Title: On the Stress-Temperature Scaling for Steady-State Flow in Metallic Glasses

Abstract

Through computer simulation of steady-state flow in a Zr50Cu40Al10 metallic glass using a set of realistic potentials we found a simple scaling relationship between temperature and stress as they affect viscosity. The scaling relationship provides new insights for the microscopic mechanism of shear flow in the glassy state, in terms of the elastic energy of the applied stress modifying the local energy landscape. The results suggest that the plastic flow and mechanical failure in metallic glasses are consequences of stress-induced glass transition.

Authors:
 [1];  [1];  [2]
  1. Institute for Materials Research, Tohoku University, Sendai, Japan
  2. University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1000889
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 104; Journal Issue: 20; Journal ID: ISSN 0031--9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPUTERIZED SIMULATION; GLASS; METALLIC GLASSES; PLASTICS; SHEAR; VISCOSITY

Citation Formats

Guan, Pengfei, Chen, Mingwei, and Egami, T. On the Stress-Temperature Scaling for Steady-State Flow in Metallic Glasses. United States: N. p., 2010. Web. doi:10.1103/PhysRevLett.104.205701.
Guan, Pengfei, Chen, Mingwei, & Egami, T. On the Stress-Temperature Scaling for Steady-State Flow in Metallic Glasses. United States. https://doi.org/10.1103/PhysRevLett.104.205701
Guan, Pengfei, Chen, Mingwei, and Egami, T. 2010. "On the Stress-Temperature Scaling for Steady-State Flow in Metallic Glasses". United States. https://doi.org/10.1103/PhysRevLett.104.205701.
@article{osti_1000889,
title = {On the Stress-Temperature Scaling for Steady-State Flow in Metallic Glasses},
author = {Guan, Pengfei and Chen, Mingwei and Egami, T.},
abstractNote = {Through computer simulation of steady-state flow in a Zr50Cu40Al10 metallic glass using a set of realistic potentials we found a simple scaling relationship between temperature and stress as they affect viscosity. The scaling relationship provides new insights for the microscopic mechanism of shear flow in the glassy state, in terms of the elastic energy of the applied stress modifying the local energy landscape. The results suggest that the plastic flow and mechanical failure in metallic glasses are consequences of stress-induced glass transition.},
doi = {10.1103/PhysRevLett.104.205701},
url = {https://www.osti.gov/biblio/1000889}, journal = {Physical Review Letters},
issn = {0031--9007},
number = 20,
volume = 104,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 2010},
month = {Fri Jan 01 00:00:00 EST 2010}
}