The effect of ion irradiation on evolution of microstructure and hardening of beryllium with different
impurity levels was investigated using TEM and nanoindentation. High purity S-65 grade and less-pure
S-200-F grade were implanted by helium ions at temperatures of 50°C and 200°C. 11 different energies
were used, so as to create a quasi-homog…
Pure Fe and model Fe-Cr alloys containing 5, 10 and 14%Cr were irradiated with Fe+ ions at a maximum energy of 2MeV to the same dose of 0.6dpa at temperatures of 300°C, 400°C and 500°C, and at dose rates corresponding to 6 x 10-4 dpa/s and 3 x 10-5 dpa/s. All materials exhibited an increase in hardness after irradiation at 300°C. After irradiat…
