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Investigation results of the swelling behavior of three ferritic steels under conditions of simultaneous irradiation with 1.8 MeV Cr3+ ions and gases (helium or hydrogen) at peak swelling temperatures and… Click to show full abstract
Investigation results of the swelling behavior of three ferritic steels under conditions of simultaneous irradiation with 1.8 MeV Cr3+ ions and gases (helium or hydrogen) at peak swelling temperatures and doses to 50 and 200 dpa are presented. It is shown that the behavior of swelling depends on the concentration of helium or hydrogen. Determined that helium and hydrogen have different influence on the nucleation processes and growth of vacancy voids. Dual irradiation with hydrogen leads to a decrease in voids formed under irradiation. Helium has a stronger effect on voids nucleation, increasing their concentration by almost 10 times with a significant decrease of their size.
Journal Title: Problems of Atomic Science and Technology
Year Published: 2020
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