Investigation of the effect of high-energy electron beam irradiation on the process of formation of intermetallic phases in Mo-Ni system

Abstract

At present stage of development of material research the principal attention is attracted the physio-chemical systems with a high degree of disequilibrium; such as amorphous alloys, compositive materials, thin-film multilayer materials etc. These systems possessed unique properties only in states remote on equilibrium are unstable. The spontaneous processes develop continuously in these systems, which transform ones in states more like to equilibrium. In the overwhelming majority these processes are carried out in solid-phase materials by diffusion mechanism. However, in last time it was found out that analogous migration of atoms in materials was possible without thermal activation under high-energy electron irradiation. Apparently, for the first time this effect was found under investigation of radiation resistance of alloys. Anomalously high mobility of atoms and the formation of new phases was detected under irradiation. After that the direct evidences of this effect were received in investigations of the electron-stimulated mass transport in flaky systems.