RADIATION-INDUCED SWELLING OF COPPER ON IRRADIATION WITH 1 MEV AMU CUAND XE IONS/

Radiation-induced swelling of copper irradiated by xenon and copper io ns is studied. Dependences of the extent of swelling on temperature an d dose are established. The position of the temperature maximum of swe lling is in good agreement with available experimental data for ion ir radiation of copper. The activation energy of vacancy migration is est imated. A shift of the temperature maximum of swelling towards higher temperatures is observed when irradiation with xenon ions. The mechani sm responsible for this behavior is discussed. Microhardness measureme nts are used for studying radiation-induced hardening of copper irradi ated under swelling conditions. Experimental results are compared with calculated data in the context of the barrier model of hardening.