Transmission electron microscopy study of the heavy-ion-irradiation-induced changes in the nanostructure of oxide dispersion strengthened steels


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Abstract

Transmission electron microscopy was used to study the effect of heavy-ion irradiation on the structure and the phase state of three oxide dispersion strengthened (ODS) steels: ODS Eurofer, ODS 13.5Cr, and ODS 13.5Cr–0.3Ti (wt %). Samples were irradiated with iron and titanium ions to fluences of 1015 and ~3 × 1015 cm–2 at 300, 573, and 773 K. The study of the region of maximum radiation damage shows that irradiation increases the number density of oxide particles in all samples. The fraction of fine inclusions increases in the particle size distribution. This effect is most pronounced in the ODS 13.5Cr steel irradiated with titanium ions at 300 K to a fluence of 3 × 1015 cm–2. It is demonstrated that oxide inclusions in ODS 13.5Cr–0.3Ti and ODS 13.5Cr steels are more stable upon irradiation at 573 and 773 K than upon irradiation at 300 K.

About the authors

A. Möslang

Karlsruhe Institute of Technology

Email: Sergey.Rogozhkin@itep.ru
Germany, Karlsruhe

P. Vladimirov

Karlsruhe Institute of Technology

Email: Sergey.Rogozhkin@itep.ru
Germany, Karlsruhe

M. Klimenkov

Karlsruhe Institute of Technology

Email: Sergey.Rogozhkin@itep.ru
Germany, Karlsruhe

S. V. 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)

Author for correspondence.
Email: Sergey.Rogozhkin@itep.ru
Russian Federation, Moscow, 117218; Moscow, 115409

A. A. Bogachev

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
Russian Federation, Moscow, 117218; Moscow, 115409

N. N. Orlov

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
Russian Federation, Moscow, 117218; Moscow, 115409

O. A. Korchuganova

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
Russian Federation, Moscow, 117218; Moscow, 115409

A. 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
Russian Federation, Moscow, 117218; Moscow, 115409

A. G. 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
Russian Federation, Moscow, 117218; Moscow, 115409

M. A. Kozodaev

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
Russian Federation, Moscow, 117218; Moscow, 115409

T. V. Kulevoy

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

Email: Sergey.Rogozhkin@itep.ru
Russian Federation, Moscow, 117218

R. P. Kuibeda

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

Email: Sergey.Rogozhkin@itep.ru
Russian Federation, Moscow, 117218

B. B. Chalykh

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

Email: Sergey.Rogozhkin@itep.ru
Russian Federation, Moscow, 117218

R. Lindau

Karlsruhe Institute of Technology

Email: Sergey.Rogozhkin@itep.ru
Germany, Karlsruhe

Ya. Hoffman

Karlsruhe Institute of Technology

Email: Sergey.Rogozhkin@itep.ru
Germany, Karlsruhe


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