Speaker
Description
In the process of irradiation of materials by fluxes of heavy particles (protons, neutrons, alpha particles) damage of material structure is observed. As a result of accumulation of such damages, there is a subsequent change in the properties of materials, in particular, its embrittlement and hardening. In this work, to observe the effect of heavy irradiation particles on the mechanical properties of metals, we propose to use vibrating wire resonators, in which the natural frequency of oscillations of the wire clamped at the ends strongly depends on its tension. The change in the elastic characteristics of the wire is reflected in the value of the natural frequency of oscillations of the wire and is registered. Preliminary experiments to study the embrittlement effect of a stretched wire are performed by heating the wire with an electric current. In the case of short pulses, a significant increase in frequency is achieved, which is explained by the process of hardening of the material as a result of the thermal impact on the wire (rapid heating and cooling).
