Email this article Effect of Low-Temperature Ion Irradiation on the Nanostructure of 12% Chromium ChS-139 Steel
- Authors: 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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Affiliations:
- 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
- Issue: Vol 10, No 5 (2019)
- Pages: 1078-1084
- Section: Materials of Power Engineering and Radiation-Resistant Materials
- URL: https://journal-vniispk.ru/2075-1133/article/view/208075
- DOI: https://doi.org/10.1134/S2075113319050289
- ID: 208075
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Abstract
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.
About the authors
S. V. Rogozhkin
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”; National Research Nuclear University MEPhI
Author for correspondence.
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218; Moscow, 115409
N. A. Iskandarov
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
A. A. Nikitin
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
A. A. Bogachev
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
A. A. Khomich
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
V. V. Khoroshilov
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
A. A. Lukyanchuk
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
O. A. Raznitsyn
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
A. S. Shutov
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
P. A. Fedin
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
T. V. Kulevoy
Institute for Theoretical and Experimental Physics named by A.I. Alikhanovof National Research Centre “Kurchatov Institute”
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 117218
M. V. Leontyeva-Smirnova
Bochvar High-Technology Research Institute of Inorganic Materials
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 123098
E. M. Mozhanov
Bochvar High-Technology Research Institute of Inorganic Materials
Email: sergey.rogozhkin@itep.ru
Russian Federation, Moscow, 123098
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