MICROSTRUCTURE AND MECHANICAL PROPERTIES OF W–10CR–0.5Y ALLOY UNDER HEAVY ION IRRADIATION
https://doi.org/10.56304/S2079562924050336
EDN: QWXNZS
Abstract
Simulation experiments on radiation resistance of a promising material for fusion reactor, the W–10Cr–0.5Y alloy, were carried out in the work. The alloy samples were irradiated with Fe2+ ions with energy of 5.6 MeV at 500°C to damage doses of 1 and 10 dpa. Transmission electron microscopy and atom probe tomography have shown that as a result of irradiation, a solid solution decomposition with the formation of nanoscale clusters enriched in chromium. The concentration of Cr in clusters is 52 ± 2 and 77 ± 3 at % for radiation doses of 1 and 10 dpa, respectively. The size of the formed clusters is less than 2 nm, and the number density is ~5 ⋅ 1024 m–3.
About the Authors
A. A. Nikitin
National Research Centre “Kurchatov Institute”;
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
S. V. Rogozhkin
National Research Centre “Kurchatov Institute”;
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
O. V. Ogorodnikova
National Research Centre “Kurchatov Institute”;
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
A. A. Bogachev
National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
P. A. Fedin
National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
T. V. Kulevoy
National Research Centre “Kurchatov Institute”
Russian Federation
Russian Federation
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Review
For citations:
Nikitin A.A., Rogozhkin S.V., Ogorodnikova O.V., Bogachev A.A., Fedin P.A., Kulevoy T.V. MICROSTRUCTURE AND MECHANICAL PROPERTIES OF W–10CR–0.5Y ALLOY UNDER HEAVY ION IRRADIATION. Nuclear Physics and Engineering. 2025;16(2):135-145. (In Russ.) https://doi.org/10.56304/S2079562924050336. EDN: QWXNZS
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