entropy alloys deformed at 77 K, ie commonly-observed low angle grain boundary (LAGB)
type and unusual twin-coupled type. Twin-coupled shear bands exhibit a misorientation of
56–67° with the matrix, in contrast to the LAGB shear band with a misorientation of 6–12°.
Both annealing twins and deformation twins can act as precursor for twin-coupled shear
bands, where dislocation accumulation along twin boundaries can tune the orientation of …