The gradient of a phase composition and the defect structure in a $0,45\mathrm{Cr17Mn3Al}$ steel induced by fatigue test

The investigations of the gradient structure induced by fatigue loading of $0,45\mathrm{Cr17Mn3Al}$ steel on the fracture stage in the conditions of electric current treatment being characterised by regular change of scalar and excess dislocation density, amplitude of curvature-torsion of a crystal lattice of a steel, emartensite volume fraction depending on distance to a fracture sample surface are carried out by the methods of diffraction electron microscopy.