Damage of structural materials for fusion devices under pulsed ion and high temperature plasma beams

Results of experiments are presented on the influence of high-energy pulses on austenitic and ferritic steels carried out using dense plasma foci devices PF-1000 and PF-60 with hydrogen and deuterium as working gas, respectively. Pulsed irradiation of specimens was performed in two regimes: (1) under microsecond hydrogen plasma pulses with power density q=10 7–10 9 W/cm 2, and (2) under 100-ns deuterium plasma pulses with q=10 9–10 11 W/cm 2. Features of damage, phase-structural transformations and compositional changes in these materials under these conditions were investigated.