On swelling of helium doped metals

12.03.2020 – FLNR CAP Scientific Seminar “On swelling of helium doped metals”, 15-00, Flerov Lab Conference Hall.

A.S. Sohatsky¹ , T.V. Nguyen¹, V.A. Skuratov¹ , I.A. Bobrikov²,
J.H. O’Connell³, J. Neethling³, M. Zdorovets<sup>4


1</sup> FLNR, Joint Institute for Nuclear Research, Dubna, Russia
² FLNP, Joint Institute for Nuclear Research, Dubna, Russia
³ CHRTEM, Nelson Mandela University, Port Elizabeth, South Africa
⁴ Institute of Nuclear Physics, Astana, Kazakhstan

The samples of three different types of ferritic steel such as AISI410S normal and Сr16ODS and EP450ODS dispersion-reinforced alloys were uniformly helium doped up to 0.2 and 1 at. % and vacuum annealed at 1023K.

Further PEM studies showed different gas-porosity behavior in them: bimodal distribution of gas bubbles close to grain boundaries in AISI410S and Сr16ODS alloys and uniform bubble growth all over the volume in EP450ODS alloy.