ABSTRAKT

Investigation of the morphology and faulty substructure of the martensite of carbon steels that undergone static (furnace) and dynamic (high-current electron beam) thermal treatment has been conducted using the diffraction electron microscopy methods. It has been shown that a rapid quenching from a liquid state accompanied by the formation of a grain ensemble of submicron size (0.1−0.5 µm) leads, first, to the reduction in the size of the martensite − phase crystals; second, to the fixation of the surface martensite effect, and third, to the formation of one ~0.3-µm martensite crystal (grain − martensite crystal) in grains (subgrains).