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Theoretical investigation on the elastic and mechanical properties of high-entropy alloys with partial replacement of Sc in Hf0.25Ti0.25Zr0.25Sc0.25−xAl x (x ≤ 15 %)

  • Ajit Kumar Maddheshiya EMAIL logo , Shakti Pratap Singh , Devraj Singh , Phool Singh Yadav , Raja Ram Yadav and Thakur Prasad Yadav
Published/Copyright: September 14, 2023
Zeitschrift für Naturforschung A
From the journal Zeitschrift für Naturforschung A Volume 78 Issue 11

Abstract

The theoretical assessment of mechanical and elastic properties is used to analyze the distinctive properties of high entropy alloys (HEAs) at room temperature. Using Lennard–Jones potential model, the second order elastic constants (SOECs) and third order elastic constants (TOECs) have been determined for the HEAs Hf0.25Ti0.25Zr0.25Sc0.25−xAl x (x ≤ 15 %) in their hexagonal close-packed (hcp) phases. SOECs have been used to calculate mechanical constants, Poisson’s ratio, Pugh’s ratio, Kleinman’s parameter. In order to determine the anisotropic behaviour of the selected HEAs, the elastic anisotropy has also been computed at room temperature. All the HEAs under consideration have anisotropy parameters that are not equal to one, indicating anisotropic behaviour. Later, the Grüneisen parameters were estimated for the chosen HEAs Hf0.25Ti0.25Zr0.25Sc0.25−xAl x (x ≤ 15 %) along longitudinal and shear modes of wave propagation. Analysis of the research results reveals the inherent properties of HEAs.

Keywords: high-entropy alloys; elastic properties; anisotropy; Grüneisen parameter
Corresponding author: Ajit Kumar Maddheshiya, Department of Physics, University of Allahabad, Prayagraj 211002, India, E-mail:

Acknowledgments

The authors are extremely greatful to the reviewers of the manuscript who have meticulously given their valuable comments for the enrichment of the manuscript.

  1. Research ethics: Not applicable.

  2. Author contributions: AKM conceived of the presented idea, performed the all computations, writing original draft; SPS, DS verified the analytical methods, writing-review and editing; TPY conceptualized, formal analysis, data curation, PSY, RRY supervised the findings of this work. The findings were considered by all authors, and they all contributed to the final publication.

  3. Competing interests: The authors state that they have no known competing financial interests or personal ties that would have influenced the work described in this study.

  4. Research funding: The authors are thankful to University Grant Commission, New Delhi for the financial support.

  5. Data availability: Data will be made available on request.

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Received: 2023-06-25
Accepted: 2023-09-01
Published Online: 2023-09-14
Published in Print: 2023-11-27

© 2023 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. General
  3. Impact of temperature asymmetry and small fraction of static positive ions on the relaxed states of a relativistic hot pair plasma
  4. Dynamical Systems & Nonlinear Phenomena
  5. Similarity solutions for cylindrical shock wave in a self-gravitating and rotating gas under the influence of monochromatic radiation and azimuthal or axial magnetic field by using Lie invariance method
  6. Chaotic dynamics of an extended Duffing-van der Pol system with a non-smooth perturbation and parametric excitation
  7. Hydrodynamics
  8. On the limitations of the complex wave velocity for the heterogeneous swirling flows
  9. Solid State Physics & Materials Science
  10. Photocatalytic decomposition of Congo red dye by black paste@TiO2 as an efficient recyclable photocatalyst
  11. Theoretical investigation on the elastic and mechanical properties of high-entropy alloys with partial replacement of Sc in Hf0.25Ti0.25Zr0.25Sc0.25−xAl x (x ≤ 15 %)
  12. Synthesis, structure, and luminescence properties of double perovskites Ba2.9Sr0.1WO6: Eu3+ red emitting phosphor
  13. Unveiling transport properties in rare-earth-substituted nanostructured bismuth telluride for thermoelectric application
https://doi.org/10.1515/zna-2023-0160
Keywords for this article
high-entropy alloys; elastic properties; anisotropy; Grüneisen parameter

Articles in the same Issue

  1. Frontmatter
  2. General
  3. Impact of temperature asymmetry and small fraction of static positive ions on the relaxed states of a relativistic hot pair plasma
  4. Dynamical Systems & Nonlinear Phenomena
  5. Similarity solutions for cylindrical shock wave in a self-gravitating and rotating gas under the influence of monochromatic radiation and azimuthal or axial magnetic field by using Lie invariance method
  6. Chaotic dynamics of an extended Duffing-van der Pol system with a non-smooth perturbation and parametric excitation
  7. Hydrodynamics
  8. On the limitations of the complex wave velocity for the heterogeneous swirling flows
  9. Solid State Physics & Materials Science
  10. Photocatalytic decomposition of Congo red dye by black paste@TiO2 as an efficient recyclable photocatalyst
  11. Theoretical investigation on the elastic and mechanical properties of high-entropy alloys with partial replacement of Sc in Hf0.25Ti0.25Zr0.25Sc0.25−xAl x (x ≤ 15 %)
  12. Synthesis, structure, and luminescence properties of double perovskites Ba2.9Sr0.1WO6: Eu3+ red emitting phosphor
  13. Unveiling transport properties in rare-earth-substituted nanostructured bismuth telluride for thermoelectric application
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