Study of Nanostructure of Ferritic-Martensitic Steel ChS-139 in Initial State and after Fe Ion Irradiation


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The chemical element distributions and the fine structure were studied using atom probe tomography in ChS-139 steel (Fe–12Cr–Nb–Mo–W–V–N–B) after conventional heat treatment (normalizing at 1190°C for 25 s and subsequent tempering at 720°C for 2 h) and after subsequent Fe ion irradiation at room temperature up to the damage doses of 8 and 16 displacements per atom (dpa). A large number of nanosized clusters (~1023 m−3) enriched in chromium, vanadium, nitrogen, and niobium were found throughout the Ch-139 steel after conventional heat treatment. The chemical element distribution in the M23C6 carbide, Nb2(C, N) and M6(C, N) carbonitride phases, pre-precipitates of M6X carbide phases, and the Cottrell atmosphere were studied. The changes in the cluster composition and sizes resulting from irradiation at room temperature were found. An increase in the cluster sizes upon irradiation was accompanied by a reduction in the concentrations of chromium, vanadium, nitrogen, and niobium.

作者简介

S. Rogozhkin

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

编辑信件的主要联系方式.
Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218; Moscow, 115409

N. Iskandarov

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218

A. Lukyanchuk

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218

A. Shutov

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218

O. Raznitsyn

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218

A. Nikitin

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218; Moscow, 115409

A. Zaluzhnyi

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218; Moscow, 115409

T. Kulevoy

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218; Moscow, 115409

R. Kuibeda

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218

S. Andrianov

Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre “Kurchatov Institute”

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 117218

M. Leontyeva-Smirnova

Bochvar High-Technology Research Institute of Inorganic Materials

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 123060

E. Mozhanov

Bochvar High-Technology Research Institute of Inorganic Materials

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 123060

A. Nikitina

Bochvar High-Technology Research Institute of Inorganic Materials

Email: sergey.rogozhkin@itep.ru
俄罗斯联邦, Moscow, 123060

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