The orientation dependence of critical shear stresses in Al$_{0.3}$CoCrFeNi high-entropy alloy single crystals

It is established that the critical shear stresses under tensile strain of Al$_{0.3}$CoCrFeNi high-entropy alloy single crystals are independent of crystal orientation. It is shown that the development of the planar dislocation structure in Al$_{0.3}$CoCrFeNi single crystals at $T$ = 296 K leads to a decrease in the ratio between the strain-hardening coefficient and shear modulus relative to that the value for Cu single crystals, where the cellular dislocation structure is developed at the similar staking fault energy.