A criterion for the formation of high entropy alloys based on lattice distortion

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. pp. 76-87. ISSN 0966-9795

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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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25 May 2018 14:08
Last Modified:
03 May 2022 01:32