The Structure and Mechanical Characteristics of the Hypereutectic Silumin (Al–22–24 wt.% Si), Irradiated by a Pulsed Electron Beam

Abstract

Irradiation (“SOLO” setup, High-Current Electronics Institute SB RAS) of hypereutectic Al- (22–24) Si composition silumin samples with an intense pulsed electron beam was carried out. The formation of a multiphase submicron nanocrystalline structure is revealed. It was found that after modification, the hardness of silumin surface layer increases by more than 2 times. Tensile tests were carried out for flat proportional silumin samples in the initial and after irradiation states. An increase in the ductility of irradiated samples was demonstrated.