Email this article Nanoindentation Study of the Effect of Low-Temperature Ion Irradiation on the Hardness of a Ferritic–Martensitic EK-181 Steel
- Authors: Nikitin A.A.1,2, Rogozhkin S.V.1,2, Kulevoi T.V.1, Fedin P.A.1, Iskandarov N.A.1, Kravchuk K.S.3, Gladkikh E.V.3, Leont’eva-Smirnova M.V.4, Mozhanov E.M.4
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Affiliations:
- Alikhanov Institute for Theoretical and Experimental Physics, National Research Centre Kurchatov Institute
- National Research Nuclear University
- Technological Institute for Superhard and Novel Carbon Materials
- Bochvar High-Technology Scientific Research Institute for Inorganic Materials
- Issue: Vol 2019, No 11 (2019)
- Pages: 1184-1189
- Section: Article
- URL: https://journal-vniispk.ru/0036-0295/article/view/173683
- DOI: https://doi.org/10.1134/S0036029519110077
- ID: 173683
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Abstract
The hardness of a ferritic–martensitic steel EK-181 after ion irradiation to a maximum damaging dose of ~50 dpa in the temperature range 250–400°C is investigated. Nanoindentation is used to measure the mechanical properties. The hardnesses of the layer damaged by ions and that of the undamaged bulk material are found. At temperatures below 300°C, softening at a dose below 10 dpa and hardening at high doses of ~50 dpa are observed. Hardening is detected over the entire dose range at 400°C. The maximum hardness of the sample irradiated to ~50 dpa at 400°C is 1.7 GPa.
About the authors
A. A. Nikitin
Alikhanov Institute for Theoretical and Experimental Physics, National Research Centre Kurchatov Institute; National Research Nuclear University
Author for correspondence.
Email: nikitin@itep.ru
Russian Federation, Moscow; Moscow
S. V. Rogozhkin
Alikhanov Institute for Theoretical and Experimental Physics, National Research Centre Kurchatov Institute; National Research Nuclear University
Email: nikitin@itep.ru
Russian Federation, Moscow; Moscow
T. V. Kulevoi
Alikhanov Institute for Theoretical and Experimental Physics, National Research Centre Kurchatov Institute
Email: nikitin@itep.ru
Russian Federation, Moscow
P. A. Fedin
Alikhanov Institute for Theoretical and Experimental Physics, National Research Centre Kurchatov Institute
Email: nikitin@itep.ru
Russian Federation, Moscow
N. A. Iskandarov
Alikhanov Institute for Theoretical and Experimental Physics, National Research Centre Kurchatov Institute
Email: nikitin@itep.ru
Russian Federation, Moscow
K. S. Kravchuk
Technological Institute for Superhard and Novel Carbon Materials
Email: nikitin@itep.ru
Russian Federation, Troitsk, Moscow
E. V. Gladkikh
Technological Institute for Superhard and Novel Carbon Materials
Email: nikitin@itep.ru
Russian Federation, Troitsk, Moscow
M. V. Leont’eva-Smirnova
Bochvar High-Technology Scientific Research Institute for Inorganic Materials
Email: nikitin@itep.ru
Russian Federation, Moscow
E. M. Mozhanov
Bochvar High-Technology Scientific Research Institute for Inorganic Materials
Email: nikitin@itep.ru
Russian Federation, Moscow
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