Deviation from high-entropy configurations in the atomic distributions of a multi-principal-element alloy
Abstract
The alloy-design strategy of combining multiple elements in near-equimolar ratios has shown great potential for producing exceptional engineering materials, often known as “high-entropy alloys”. Understanding the elemental distribution, and, thus, the evolution of the configurational entropy during solidification, is undertaken in the present study using the Al1.3CoCrCuFeNi model alloy. Here we show that even when the material undergoes elemental segregation, precipitation, chemical ordering, and spinodal decomposition, a significant amount of disorder remains, due to the distributions of multiple elements in the major phases. In addition, the results suggest that the high-entropy-alloy-design strategy may be applied to a wide range of complex materials, and should not be limited to the goal of creating single-phase solid solutions.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- National Energy Technology Lab., Albany, OR (United States); URS Corporation, Albany, OR (United States)
- Materials Development Inc., Evanston, IL (United States); Argonne National Lab., Argonne, IL (United States)
- Univ. of Tennessee, Knoxville, TN (United States)
- Publication Date:
- Research Org.:
- Univ. of Tennessee, Knoxville, TN (United States); Univ. of Illinois at Urbana-Champaign, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
- Sponsoring Org.:
- USDOE Office of Fossil Energy (FE); Work for Others (WFO)
- OSTI Identifier:
- 1224520
- Alternate Identifier(s):
- OSTI ID: 1185345
- Grant/Contract Number:
- FE0011194; AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 6; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; high entropy alloys; physical sciences; materials science; Intermetallic; High-entropy alloy; neutron scattering; microscopy
Citation Formats
Santodonato, Louis J., Zhang, Yang, Feygenson, Mikhail, Parish, Chad M., Gao, Michael C., Weber, Richard J. K., Neuefeind, Joerg C., Tang, Zhi, and Liaw, Peter K. Deviation from high-entropy configurations in the atomic distributions of a multi-principal-element alloy. United States: N. p., 2015.
Web. doi:10.1038/ncomms6964.
Santodonato, Louis J., Zhang, Yang, Feygenson, Mikhail, Parish, Chad M., Gao, Michael C., Weber, Richard J. K., Neuefeind, Joerg C., Tang, Zhi, & Liaw, Peter K. Deviation from high-entropy configurations in the atomic distributions of a multi-principal-element alloy. United States. https://doi.org/10.1038/ncomms6964
Santodonato, Louis J., Zhang, Yang, Feygenson, Mikhail, Parish, Chad M., Gao, Michael C., Weber, Richard J. K., Neuefeind, Joerg C., Tang, Zhi, and Liaw, Peter K. Tue .
"Deviation from high-entropy configurations in the atomic distributions of a multi-principal-element alloy". United States. https://doi.org/10.1038/ncomms6964. https://www.osti.gov/servlets/purl/1224520.
@article{osti_1224520,
title = {Deviation from high-entropy configurations in the atomic distributions of a multi-principal-element alloy},
author = {Santodonato, Louis J. and Zhang, Yang and Feygenson, Mikhail and Parish, Chad M. and Gao, Michael C. and Weber, Richard J. K. and Neuefeind, Joerg C. and Tang, Zhi and Liaw, Peter K.},
abstractNote = {The alloy-design strategy of combining multiple elements in near-equimolar ratios has shown great potential for producing exceptional engineering materials, often known as “high-entropy alloys”. Understanding the elemental distribution, and, thus, the evolution of the configurational entropy during solidification, is undertaken in the present study using the Al1.3CoCrCuFeNi model alloy. Here we show that even when the material undergoes elemental segregation, precipitation, chemical ordering, and spinodal decomposition, a significant amount of disorder remains, due to the distributions of multiple elements in the major phases. In addition, the results suggest that the high-entropy-alloy-design strategy may be applied to a wide range of complex materials, and should not be limited to the goal of creating single-phase solid solutions.},
doi = {10.1038/ncomms6964},
journal = {Nature Communications},
number = ,
volume = 6,
place = {United States},
year = {Tue Jan 20 00:00:00 EST 2015},
month = {Tue Jan 20 00:00:00 EST 2015}
}
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Corrosion-Resistant High-Entropy Alloys: A Review
journal, February 2017
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Effects of Short-Range Order on the Magnetic and Mechanical Properties of FeCoNi(AlSi)x High Entropy Alloys
journal, November 2017
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A Mystery of "Sluggish Diffusion" in High-Entropy Alloys: The Truth or a Myth?
journal, July 2018
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Revealing the Microstates of Body-Centered-Cubic (BCC) Equiatomic High Entropy Alloys
journal, June 2017
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Thermoelectric high-entropy alloys with low lattice thermal conductivity
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Thermoelectric performance of PbSnTeSe high-entropy alloys
journal, October 2016
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Design of Light-Weight High-Entropy Alloys
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Tuning phase stability and short-range order through Al doping in ( CoCrFeMn ) 100 − x A l x high-entropy alloys
journal, July 2019
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A mystery of "sluggish diffusion" in high-entropy alloys: the truth or a myth?
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- Divinski, Sergiy V.; Pokoev, Alexander; Esakkiraja, Neelamegan
- arXiv
A Stable Cardinality Distance for Topological Classification
preprint, January 2018
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- arXiv
Strengthening in multi-principal element alloys with local-chemical-order roughened dislocation pathways
text, January 2019
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- arXiv
Entropy-stabilized oxides
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Influence of chemical disorder on energy dissipation and defect evolution in concentrated solid solution alloys
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High-content ductile coherent nanoprecipitates achieve ultrastrong high-entropy alloys
journal, October 2018
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Predictive multiphase evolution in Al-containing high-entropy alloys
journal, October 2018
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Computationally-driven engineering of sublattice ordering in a hexagonal AlHfScTiZr high entropy alloy
journal, May 2017
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Sol-gel Autocombustion Synthesis of Nanocrystalline High-entropy Alloys
journal, June 2017
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Design of non-equiatomic medium-entropy alloys
journal, January 2018
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Effect of Si and C additions on the reaction mechanism and mechanical properties of FeCrNiCu high entropy alloy
journal, November 2019
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Self-Similar Random Process and Chaotic Behavior In Serrated Flow of High Entropy Alloys
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Atomistic clustering-ordering and high-strain deformation of an Al0.1CrCoFeNi high-entropy alloy
journal, August 2016
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Kinetic ways of tailoring phases in high entropy alloys
journal, September 2016
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The Effect of Electronic Structure on the Phases Present in High Entropy Alloys
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Tunable stacking fault energies by tailoring local chemical order in CrCoNi medium-entropy alloys
text, January 2018
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- arXiv
Strengthening in multi-principal element alloys with local-chemical-order roughened dislocation pathways
text, January 2019
- Li, Qing-Jie; Sheng, Howard; Ma, Evan
- arXiv