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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−xAlx (x ≤ 15 %).
- Source :
- Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences; Nov2023, Vol. 78 Issue 11, p1051-1059, 9p
- Publication Year :
- 2023
-
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 Hf<subscript>0.25</subscript>Ti<subscript>0.25</subscript>Zr<subscript>0.25</subscript>Sc<subscript>0.25−x</subscript>Al<subscript>x</subscript> (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 Hf<subscript>0.25</subscript>Ti<subscript>0.25</subscript>Zr<subscript>0.25</subscript>Sc<subscript>0.25−x</subscript>Al<subscript>x</subscript> (x ≤ 15 %) along longitudinal and shear modes of wave propagation. Analysis of the research results reveals the inherent properties of HEAs. [ABSTRACT FROM AUTHOR]
- Subjects :
- ELASTICITY
POISSON'S ratio
ELASTIC constants
THEORY of wave motion
ALLOYS
Subjects
Details
- Language :
- English
- ISSN :
- 09320784
- Volume :
- 78
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 173441819
- Full Text :
- https://doi.org/10.1515/zna-2023-0160