A criterion for the formation of high entropy alloys based on lattice distortion
A criterion for the formation of high entropy alloys based on lattice distortion
Lattice distortion in high entropy alloys (HEAs) is one of their main crystallographic features. Its description is possible by means of unit cell parameter and bulk modulus variations of their constituent elements. The balance of forces acting on the lattice atoms under such distortion is related to the formation of a solid solution of a given crystal structure. This leads to the definition of a novel criterion for selecting HEA compositions. The main existing families of HEAs have been classified under this approach, in addition to an extensive list of multicomponent alloys including intermetallics and bulk metallic glasses. Criteria reported in the literature have been revised with the multicomponent alloy database used in this work which, together with the proposed approach, can be used to improve our understanding of HEAs formation.
Alloy design, Elastic properties, Highentropy alloys, Microstructure, Phase stability, Prediction, Solidsolution hardening
76-87
Toda-Caraballo, I.
104b4ea9-5418-46cc-a90f-db65f449a1fb
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
15 January 2016
Toda-Caraballo, I.
104b4ea9-5418-46cc-a90f-db65f449a1fb
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Toda-Caraballo, I. and Rivera-Díaz-Del-Castillo, P.E.J.
(2016)
A criterion for the formation of high entropy alloys based on lattice distortion.
Intermetallics, 71, .
(doi:10.1016/j.intermet.2015.12.011).
Abstract
Lattice distortion in high entropy alloys (HEAs) is one of their main crystallographic features. Its description is possible by means of unit cell parameter and bulk modulus variations of their constituent elements. The balance of forces acting on the lattice atoms under such distortion is related to the formation of a solid solution of a given crystal structure. This leads to the definition of a novel criterion for selecting HEA compositions. The main existing families of HEAs have been classified under this approach, in addition to an extensive list of multicomponent alloys including intermetallics and bulk metallic glasses. Criteria reported in the literature have been revised with the multicomponent alloy database used in this work which, together with the proposed approach, can be used to improve our understanding of HEAs formation.
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Accepted/In Press date: 19 December 2015
e-pub ahead of print date: 15 January 2016
Published date: 15 January 2016
Keywords:
Alloy design, Elastic properties, Highentropy alloys, Microstructure, Phase stability, Prediction, Solidsolution hardening
Identifiers
Local EPrints ID: 492417
URI: http://eprints.soton.ac.uk/id/eprint/492417
ISSN: 0966-9795
PURE UUID: 58bca346-0a58-4cdf-af91-e37c3fc478ea
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Date deposited: 26 Jul 2024 16:34
Last modified: 27 Jul 2024 02:08
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Author:
I. Toda-Caraballo
Author:
P.E.J. Rivera-Díaz-Del-Castillo
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