Propensity of bond exchange as a window into the mechanical properties of metallic glasses
Abstract
We investigated the mechanical properties of Zr-Cu-Al bulk metallic glasses, by compression experiment and molecular dynamics simulations. From the simulation, we found that the large, solvent atom, Zr, has high propensity of bond exchange compared to those of the smaller solute atoms. The difference in bond exchange is consistent with the observed disparity in mechanical behaviors: Zr-rich metallic glass exhibits low elastic modulus and large plastic strain. Furthermore, X-ray photoelectron spectroscopy measurements suggest that the increased propensity in bond exchange is related to the softening of Zr bonds with increasing Zr content.
- Authors:
-
[1];
[1];
- City Univ. of Hong Kong (China)
- Taiyuan Univ. of Technology (China)
- Univ. of Science and Technology Beijing (China)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- OSTI Identifier:
- 1326091
- Alternate Identifier(s):
- OSTI ID: 1226709
- Grant/Contract Number:
- AC05-00OR22725; AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 106; Journal Issue: 6; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Jiao, W., Wang, X. L., Lan, S., Pan, S. P., and Lu, Z. P. Propensity of bond exchange as a window into the mechanical properties of metallic glasses. United States: N. p., 2015.
Web. doi:10.1063/1.4908122.
Jiao, W., Wang, X. L., Lan, S., Pan, S. P., & Lu, Z. P. Propensity of bond exchange as a window into the mechanical properties of metallic glasses. United States. https://doi.org/10.1063/1.4908122
Jiao, W., Wang, X. L., Lan, S., Pan, S. P., and Lu, Z. P. Thu .
"Propensity of bond exchange as a window into the mechanical properties of metallic glasses". United States. https://doi.org/10.1063/1.4908122. https://www.osti.gov/servlets/purl/1326091.
@article{osti_1326091,
title = {Propensity of bond exchange as a window into the mechanical properties of metallic glasses},
author = {Jiao, W. and Wang, X. L. and Lan, S. and Pan, S. P. and Lu, Z. P.},
abstractNote = {We investigated the mechanical properties of Zr-Cu-Al bulk metallic glasses, by compression experiment and molecular dynamics simulations. From the simulation, we found that the large, solvent atom, Zr, has high propensity of bond exchange compared to those of the smaller solute atoms. The difference in bond exchange is consistent with the observed disparity in mechanical behaviors: Zr-rich metallic glass exhibits low elastic modulus and large plastic strain. Furthermore, X-ray photoelectron spectroscopy measurements suggest that the increased propensity in bond exchange is related to the softening of Zr bonds with increasing Zr content.},
doi = {10.1063/1.4908122},
journal = {Applied Physics Letters},
number = 6,
volume = 106,
place = {United States},
year = {Thu Feb 12 00:00:00 EST 2015},
month = {Thu Feb 12 00:00:00 EST 2015}
}
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