twinning fcc twin metals fault materials illinois layer shockley intrinsic nucleation energy temperature laboratory high supercell calculations left used mechse
stacking deformation hrtem faults lower fault nanocrystalline formed
tem lath martensite twin micrographs field saed quenched fault stacking specimen
fault stacking strain tensile micrographs entropy alloy true critical microstructure twinning stress
twins stacking micro faults nanocrystalline twin hrtem deformation formed
stacking fault faults parallelepiped slip partial defects dislocations