Enviar artigo por via de e-mail Effect of Low-Temperature Ion Irradiation on the Nanostructure of 12% Chromium ChS-139 Steel
- Autores: Rogozhkin S.V.1,2, Iskandarov N.A.1, Nikitin A.A.1, Bogachev A.A.1, Khomich A.A.1, Khoroshilov V.V.1, Lukyanchuk A.A.1, Raznitsyn O.A.1, Shutov A.S.1, Fedin P.A.1, Kulevoy T.V.1, Leontyeva-Smirnova M.V.3, Mozhanov E.M.3
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Afiliações:
- Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”
- National Research Nuclear University MEPhI
- Bochvar High-Technology Research Institute of Inorganic Materials
- Edição: Volume 10, Nº 5 (2019)
- Páginas: 1078-1084
- Seção: Materials of Power Engineering and Radiation-Resistant Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/208075
- DOI: https://doi.org/10.1134/S2075113319050289
- ID: 208075
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Resumo
Specimens of ChS-139 steel (0.2 С–12 Cr–Ni–Mo–W–Nb–V–N–B) were irradiated up to 6 displacements per atom (dpa) with Fe ions at 250, 300, and 400°C. The radiation-induced clusters and Cottrell atmospheres enriched in Ni, Si, and Mn were revealed in irradiated samples by atom probe tomography. The typical sizes of the radiation-induced clusters were about 2–7 nm, and their number density was about (2–20) × 1023 m–3. It was shown that the highest irradiation temperature (400°C) is compliant with the lowest enrichment of clusters in Ni, Si, and Mn as well as with the largest average size of clusters (~5 nm) and the least number density (~2 × 1023 m–3). A noticeable decrease in the number density of radiation-induced clusters with an increase in the damage dose to 4 dpa at 300°C was found. At the same time, it was shown that the Cr–V–Nb–N clusters found in the initial state dissolve with the increase in the irradiation dose at all considered temperatures. The value of detected radiation-induced effects is indicative of their significant role in the low temperature radiation embrittlement of ChS-139 steel.
Sobre autores
S. Rogozhkin
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”; National Research Nuclear University MEPhI
Autor responsável pela correspondência
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218; Moscow, 115409
N. Iskandarov
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
A. Nikitin
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
A. Bogachev
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
A. Khomich
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
V. Khoroshilov
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
A. Lukyanchuk
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
O. Raznitsyn
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
A. Shutov
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
P. Fedin
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
T. Kulevoy
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 117218
M. Leontyeva-Smirnova
Bochvar High-Technology Research Institute of Inorganic Materials
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 123098
E. Mozhanov
Bochvar High-Technology Research Institute of Inorganic Materials
Email: sergey.rogozhkin@itep.ru
Rússia, Moscow, 123098
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