Deformation mechanisms in hexagonal close-packed high-entropy alloys

Wang, Z. and Bao, M.L. and Wang, X.J. and Liaw, P.K. and Guo, R.P. and Qiao, J.W. (2021) Deformation mechanisms in hexagonal close-packed high-entropy alloys. Journal of Applied Physics, 129 (17): 175104. ISSN 0021-8979

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Abstract

Single-phase hexagonal close-packed structure of the ScYLaGdTbDyHoErLu high-entropy alloy was studied in detail. The applicability of the rule of mixture was analyzed with respect to the lattice constant, mechanical parameters, elastic properties, melting point, and hardness of the alloy. Significant tension-compression asymmetry has been found and explained by the strength differential effect during the uniaxial tests. Numerous deformation twins and high densities of stacking faults can be observed from the morphological characterization by a transmission electron microscope, which governs the main deformation mechanism during the plastic deformation in the current high-entropy alloy.

Item Type:

Journal Article

Journal or Publication Title:

Journal of Applied Physics

Additional Information:

Copyright 2021 American Institute of Physics. The following article appeared in Journal of Applied Physics, 129, (17) 2021 and may be found at http://dx.doi.org/10.1063/5.0045414 This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Uncontrolled Keywords:

/dk/atira/pure/subjectarea/asjc/3100

Subjects:

?? entropytransmission electron microscopytwinningdeformation mechanismelastic propertieshexagonal close packedhexagonal close packed structuremechanical parametersmorphological characterizationstrength-differential effectstension-compression asymmetryhigh-e ??

Departments:

Faculty of Science and Technology > Engineering

ID Code:

156613

Deposited By:

ep_importer_pure

Deposited On:

19 Jul 2021 14:30

Refereed?:

Yes

Published?:

Published

Last Modified:

17 Feb 2024 01:14

URI:

https://eprints.lancs.ac.uk/id/eprint/156613