Microstructure of metals and alloys in the heat-affected zone produced by a high-power ion beam

Abstract

The microstructure of heat-affected zones produced by high-power ion beams in Al, Cu, Ni, and AD1 and Monel alloys are investigated by optical and scanning electron microscopy and X-ray diffraction analysis. It is ascertained that the microstructure is divided into characteristic layers differing in terms of grain sizes and phase components. It is shown that the formation of the structural-phase states of each layer occurs in both solid and liquid phases under pulsed ion-beam treatment and depends on the irradiation parameters and the thermophysical characteristics of a target.