On segregation manifestations of the long-range effect during the ion implantation of rolled copper-nickel foils

Abstract

Segregation manifestations of the long-range effect during the irradiation of rolled nonequilibrium Cu80Ni20 alloy foils with B+ ions are studied. The composition separation of Cu and Ni in the surface layers of the unirradiated side of the foil is revealed. This separation leads to the formation of the nonmonotonic concentration profiles of Ni and Cu. A phenomenological model for the formation of the chemical composition of the surface layers on the unirradiated side of the foil is proposed. It is based on the assumption of the simultaneous effects of the generation of elastic waves and changes in local mechanical stresses.