E. Kuleshova, D. Maltsev, A. Frolov, N. Stepanov, B. Margolin, А. A. Sorokin, V. Pechenkin, M. Bokhovko, U. Kobets
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Profile evaluation of the ion irradiation-induced swelling in austenitic stainless steel with varying nickel content
Comparative studies of porosity and calculation of the swelling profile in samples of austenitic stainless steel with a nickel content of 10 and 20 wt.%. The samples were irradiated at the Tandem-3M accelerator to the same doses of 300 dpa with Ni ions with an ion energy of 11.5 MeV at a temperature of 550°C with preliminary implantation of He. To calculate the swelling profile, digitally processed images were obtained by scanning transmission electron microscopy (STEM). In addition, comparative studies of the phase composition and radiation-induced segregations at grain boundaries, pore/matrix interfacial boundaries, and on the surface of phase precipitates were carried out on irradiated samples with varying nickel contents.
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