TEM study and modeling of bubble formation in dual-beam He + /Fe 3+ ion irradiated EUROFER97

Microstructural evolution of three potential fusion candidate steels under ion-irradiation

“…In order to simulate the significantly lower damage rates of neutron irradiation [45] higher irradiation temperatures are obviously necessary during ion implantation experiments. The authors in [31,46], who also observed a temperature shift of < 50 °C between neutron and ion irradiation came to the same conclusion.…”

“…Apparently, synergetic effects between simultaneous displacement damage as well as helium and hydrogen implantation were observed in this area. In this context, a comparison with the work of Kaiser et al [31], who irradiated EUROFER97 with Fe 3+ (3.0 MeV) and He + (1.2 MeV) at 330 °C, 400 °C and 500 °C up to 26 dpa and 450 appm He, and then examined the microstructure in the TEM in the range in which the conditions according to SRIM were exactly effective, is worthwhile. Table 4 shows the results together with the values measured between 1.5 µm and 2 µm.…”