Swelling of ferritic structural materials at high levels of damage doses and gas concentrations

• Дата: 2020
• Автори: Vasilenko, R.L., Voyevodin, V.N., Kalchenko, A.S., Nazarenko, Y.O., Pylypenko jr, M.M., Solopikhina, E.S.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2020
• Назва видання: Вопросы атомной науки и техники
• Теми: Physics of radiation damages and effects in solids
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/194381
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Swelling of ferritic structural materials at high levels of damage doses and gas concentrations / R.L. Vasilenko, V.N. Voyevodin, A.S. Kalchenko, Y.O. Nazarenko, M.M. Pylypenko jr., E.S. Solopikhina // Problems of atomic science and tecnology. — 2020. — № 4. — С. 3-10. — Бібліогр.: 18 назв. — англ.

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.