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Title: Local electronic effects and irradiation resistance in high-entropy alloys

High-entropy alloys are multicomponent solid solutions in which various elements with different chemistries and sizes occupy the same crystallographic lattice sites. Thus, none of the atoms perfectly fit the lattice site, giving rise to considerable local lattice distortions and atomic-level stresses. These characteristics can be beneficial for performance under both radiation and in a high-temperature environment, making them attractive candidates as nuclear materials. We discuss electronic origin of the atomic-level stresses based upon first-principles calculations using a density functional theory approach.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [3]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of North Carolina, Asheville, NC (United States)
  3. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
JOM. Journal of the Minerals, Metals & Materials Society
Additional Journal Information:
Journal Volume: 67; Journal Issue: 10; Journal ID: ISSN 1047-4838
Publisher:
Springer
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1222560

Egami, Takeshi, Stocks, George Malcolm, Nicholson, Don, Khorgolkhuu, Od, and Ojha, Madhusudan. Local electronic effects and irradiation resistance in high-entropy alloys. United States: N. p., Web. doi:10.1007/s11837-015-1579-1.
Egami, Takeshi, Stocks, George Malcolm, Nicholson, Don, Khorgolkhuu, Od, & Ojha, Madhusudan. Local electronic effects and irradiation resistance in high-entropy alloys. United States. doi:10.1007/s11837-015-1579-1.
Egami, Takeshi, Stocks, George Malcolm, Nicholson, Don, Khorgolkhuu, Od, and Ojha, Madhusudan. 2015. "Local electronic effects and irradiation resistance in high-entropy alloys". United States. doi:10.1007/s11837-015-1579-1. https://www.osti.gov/servlets/purl/1222560.
@article{osti_1222560,
title = {Local electronic effects and irradiation resistance in high-entropy alloys},
author = {Egami, Takeshi and Stocks, George Malcolm and Nicholson, Don and Khorgolkhuu, Od and Ojha, Madhusudan},
abstractNote = {High-entropy alloys are multicomponent solid solutions in which various elements with different chemistries and sizes occupy the same crystallographic lattice sites. Thus, none of the atoms perfectly fit the lattice site, giving rise to considerable local lattice distortions and atomic-level stresses. These characteristics can be beneficial for performance under both radiation and in a high-temperature environment, making them attractive candidates as nuclear materials. We discuss electronic origin of the atomic-level stresses based upon first-principles calculations using a density functional theory approach.},
doi = {10.1007/s11837-015-1579-1},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 10,
volume = 67,
place = {United States},
year = {2015},
month = {8}
}

Works referenced in this record:

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
journal, September 1976

Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
journal, May 2004
  • Yeh, J.-W.; Chen, S.-K.; Lin, S.-J.
  • Advanced Engineering Materials, Vol. 6, Issue 5, p. 299-303
  • DOI: 10.1002/adem.200300567