Cited by 308High Entropy Alloys StudiesIntermetallics and Advanced Alloy PropertiesQuasicrystal Structures and Properties

Hexagonal High-entropy Alloys

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Feuerbacher, Michael, Heidelmann, Markus, Thomas, Carsten·2015·Materials Research Letters

Abstract

We report on the discovery of a high-entropy alloy (HEA) with a hexagonal crystal structure. Equiatomic samples in the alloy system Ho–Dy–Y–Gd–Tb were found to solidify as homogeneous single-phase HEAs. The results of our electron diffraction investigations and high-resolution scanning transmission electron microscopy are consistent with an Mg-type hexagonal structure. The possibility of hexagonal high-entropy alloys in other alloy systems is discussed.

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Crossref · 10.1080/21663831.2014.951493

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  • The majority of HCP-type HEAs reported in the literature contain rare-earth atoms.

    “The majority of HCP-type HEAs reported in the literature contain rare-earth atoms.”

    From Recent advances in high-entropy superconductors (2024) · cites this paper as [49]

    The Accepted text (p. 1) reports a hexagonal HEA made from rare-earth elements, supporting an example of the claimed type. It does not establish that a majority of HCP-type HEAs reported in the literature contain rare-earth atoms; at the time, it says previously reported HEAs had only cubic structures. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • In contrast to transition metal HEAs, these alloys lack solid solution strengthening effects, which is attributable to mismatches in the atomic size and electronic structure among the component elements.

    “In contrast to transition metal HEAs, these alloys lack solid solution strengthening effects, which is attributable to mismatches in the atomic size and electronic structure among the component elements 49,50 .”

    From Recent advances in high-entropy superconductors (2024) · cites this paper as [49]

    The Accepted text (p. 7) reports a small atomic-radius difference for Ho-Dy-Y-Gd-Tb and discusses criteria for forming a single-phase alloy. It does not address whether these alloys lack solid-solution strengthening, compare that effect with transition-metal HEAs, or attribute it to atomic-size or electronic-structure mismatches. Searches for strengthening and those proposed mechanisms found no passage that settles the claim. (LLM, conf=0.75)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 1

  1. [6][6] Yang X, Zhang Y. Prediction of high-­-entropy stabilized solid-­-solution multicomponent alloys. Mat. Chem. Phys. 2012; 132: 233 -

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Authors
Feuerbacher, M., Heidelmann, M., & Thomas, C.
Affiliations
Forschungszentrum Jülich (DE)
Corresponding author
Feuerbacher, Michael
Venue
Materials Research Letters
Published
2014-08-21
Volume
3
Issue
1
Pages
1-6
ISSN
2166-3831 (ISSN-L)
OpenAlex
W1998369408
Cited by
308
References
11
Citations by year
2026: 20 · 2025: 19 · 2024: 34 · 2023: 37 · 2022: 22 · 2021: 26 · 2020: 25 · 2019: 33 · 2018: 26 · 2017: 22 · 2016: 25 · 2015: 19
FWCI
25.61
Type
journal article
Language
en
Open access
Locations
  • Materials Research Letters (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › High Entropy Alloys Studies
  • Physical Sciences › Engineering › Mechanical Engineering › Intermetallics and Advanced Alloy Properties
  • Physical Sciences › Materials Science › Materials Chemistry › Quasicrystal Structures and Properties
Keywords
high-entropy alloys, hexagonal crystal structure, equiatomic alloys, rare-earth intermetallic compounds, crystal structure determination

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