Rights statement: 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.
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Deformation mechanisms in hexagonal close-packed high-entropy alloys
AU - Wang, Z.
AU - Bao, M.L.
AU - Wang, X.J.
AU - Liaw, P.K.
AU - Guo, R.P.
AU - Qiao, J.W.
N1 - 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.
PY - 2021/5/7
Y1 - 2021/5/7
N2 - 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.
AB - 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.
KW - Entropy
KW - Transmission electron microscopy
KW - Twinning
KW - Deformation mechanism
KW - Elastic properties
KW - Hexagonal close packed
KW - Hexagonal close packed structure
KW - Mechanical parameters
KW - Morphological characterization
KW - Strength-differential effects
KW - Tension-compression asymmetry
KW - High-entropy alloys
U2 - 10.1063/5.0045414
DO - 10.1063/5.0045414
M3 - Journal article
VL - 129
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 17
M1 - 175104
ER -