From high-entropy alloys to complex concentrated alloys

Stéphane Gorsse; Jean-Philippe Couzinié; Daniel B. Miracle

doi:10.1016/j.crhy.2018.09.004

From high-entropy alloys to complex concentrated alloys

Stéphane Gorsse ^1,² ; Jean-Philippe Couzinié ³; Daniel B. Miracle ⁴

¹ CNRS, ICMCB (UMR 5026), Université de Bordeaux, 33600 Pessac, France
² Bordeaux INP, ENSCBP, 33600 Pessac, France
³ Université Paris Est, ICMPE (UMR 7182), CNRS, UPEC, 94320 Thiais, France
⁴ Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH 45433, USA

Comptes Rendus. Physique, Volume 19 (2018) no. 8, pp. 721-736.

Abstract
Résumé

High-entropy alloys (HEAs) and related concept of complex concentrated alloys (CCAs) expand the diversity of the materials world and inspire new ideas and approaches for the design of materials with an attractive combination of properties. Here, we present a critical review of the field with the intent of summarizing the principles underlying their birth and growth. We highlight the major accomplishments and progresses over the last 14 years, especially in the discovery of new microstructures and mechanical properties. Finally, we outline the main challenges and provide guidance for future works.

Les alliages à haute entropie (HEA) et le concept associé d'alliages concentrés complexes (CCA) élargissent la diversité du monde des matériaux et inspirent de nouvelles idées et approches pour la conception de matériaux présentant une combinaison attrayante de propriétés. Nous présentons ici une revue critique du domaine dans le but de résumer les principes qui sous-tendent leur naissance et leur développement. Nous mettons en évidence les principaux accomplissements et les progrès réalisés au cours des 14 dernières années, en particulier la découverte de nouvelles microstructures et propriétés mécaniques. Enfin, nous décrivons les principaux défis et suggérons des orientations pour les travaux futurs.

Published online: 2018-10-15

DOI: 10.1016/j.crhy.2018.09.004

Keywords: High entropy alloys, Alloy design, Microstructures, Combinatorial metallurgy, Mechanical properties, Computational thermodynamic
Mot clés : Alliages à haute entropie, Conception d'alliages, Microstructures, Métallurgie combinatoire, Propriétés mécaniques, Thermodynamique computationnelle

Author's affiliations:

Stéphane Gorsse ^{1, 2}; Jean-Philippe Couzinié ³; Daniel B. Miracle ⁴

¹ CNRS, ICMCB (UMR 5026), Université de Bordeaux, 33600 Pessac, France
² Bordeaux INP, ENSCBP, 33600 Pessac, France
³ Université Paris Est, ICMPE (UMR 7182), CNRS, UPEC, 94320 Thiais, France
⁴ Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH 45433, USA

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     title = {From high-entropy alloys to complex concentrated alloys},
     journal = {Comptes Rendus. Physique},
     pages = {721--736},
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     doi = {10.1016/j.crhy.2018.09.004},
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Stéphane Gorsse; Jean-Philippe Couzinié; Daniel B. Miracle. From high-entropy alloys to complex concentrated alloys. Comptes Rendus. Physique, Volume 19 (2018) no. 8, pp. 721-736. doi : 10.1016/j.crhy.2018.09.004. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2018.09.004/

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