Formation of surface gradient structural-phase states under electron-beam treatment of stainless steel

The structural-phase states of steel 08X18H10T (0.08% C, 18% Cr, 10% Ni, 1% Ti) subjected to pulse electron beam treatment in the regime of surface layer melting is investigated using the methods of optical and electron microscopy. The regularities of variations in the phase composition and the state of the defect substructure moving away from the irradiation surface up to a 200-μm depth are revealed.