The effects of implantation of pulsed beams of high-energy nitrogen io
ns into metallic materials are considered. Studied are the long-range
effects of intense nitrogen ion beams and of two-component beams, the
effect of post-implantation annealing on microhardness. The importance
of the effect of energy flux density and irradiation temperature on s
trengthening and fracture of hard alloys is stressed. The mechanisms o
f ion-induced hardening and softening of materials are discussed.