Solid solution formation rules and crystal structure indicators on high entropy alloys
Solid solution formation rules and crystal structure indicators on high entropy alloys
High Entropy Alloys (HEAs) are multicomponent systems incorporating several elements in a nearly equiatomic configuration. The content of each solute can typically vary between 5 and 35 at%. The high entropy associated to mixing several elements can inhibit the formation of intermetallic phases in favour of FCC or BCC solid solutions. Existing rules for predicting HEAs formation are at an incipient form, generally not offering information on the crystal structure. In this work, the interatomic spacing mismatch and bulk modulus mismatch across the lattice are considered for predicting the occurrence of HEAs. The work follows similar approaches to predict the formation of intermetallic phases and bulk metallic glasses, allowing the prescription of FCC or BCC HEAs occurrence. A statistical analysis on the reliability of the complete set of rules for predicting HEAs has been achieved by analysing approximately 400 different compositions.
High Entropy Alloys, Lattice distortion, Multicomponent alloys, Selection criteria
793-794
Toda-Caraballo, I.
104b4ea9-5418-46cc-a90f-db65f449a1fb
Rivera-Diaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
2015
Toda-Caraballo, I.
104b4ea9-5418-46cc-a90f-db65f449a1fb
Rivera-Diaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Toda-Caraballo, I. and Rivera-Diaz-Del-Castillo, P.E.J.
(2015)
Solid solution formation rules and crystal structure indicators on high entropy alloys.
Chen, Long-Qing, Militzer, Matthias, Botton, Gianluigi, Howe, James, Sinclair, Chadwick and Zurob, Hatem
(eds.)
In PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
High Entropy Alloys (HEAs) are multicomponent systems incorporating several elements in a nearly equiatomic configuration. The content of each solute can typically vary between 5 and 35 at%. The high entropy associated to mixing several elements can inhibit the formation of intermetallic phases in favour of FCC or BCC solid solutions. Existing rules for predicting HEAs formation are at an incipient form, generally not offering information on the crystal structure. In this work, the interatomic spacing mismatch and bulk modulus mismatch across the lattice are considered for predicting the occurrence of HEAs. The work follows similar approaches to predict the formation of intermetallic phases and bulk metallic glasses, allowing the prescription of FCC or BCC HEAs occurrence. A statistical analysis on the reliability of the complete set of rules for predicting HEAs has been achieved by analysing approximately 400 different compositions.
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Published date: 2015
Venue - Dates:
International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015, , Whistler, Canada, 2015-06-28 - 2015-07-03
Keywords:
High Entropy Alloys, Lattice distortion, Multicomponent alloys, Selection criteria
Identifiers
Local EPrints ID: 492530
URI: http://eprints.soton.ac.uk/id/eprint/492530
PURE UUID: be2e4805-40e7-4e67-b2b5-4f95e93b81bd
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Date deposited: 30 Jul 2024 17:17
Last modified: 31 Jul 2024 02:07
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Contributors
Author:
I. Toda-Caraballo
Author:
P.E.J. Rivera-Diaz-Del-Castillo
Editor:
Long-Qing Chen
Editor:
Matthias Militzer
Editor:
Gianluigi Botton
Editor:
James Howe
Editor:
Chadwick Sinclair
Editor:
Hatem Zurob
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