Nuclear physical properties of ferritic-martensitic steel EK-181 under conditions of long-term neutron irradiation in fast breeder BN-600 and fusion DEMO-RF reactors

• Published in: Inorganic materials : applied research Vol. 2; no. 2; pp. 129 - 135
• Main Authors: Blokhin, D. A., Leontyeva-Smirnova, M. V., Chernov, V. M., Blokhin, A. I., Demin, N. A., Sipachev, I. V.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-04-2011
• Subjects: Chemistry; Chemistry and Materials Science; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Materials of Nuclear and Thermonuclear Power Engineering and Radiation-Resistant Materials; Materials Science; primary radiation damage; nuclear physical properties; neutron irradiation; transmutation; cooling; activation; ferritic-martensitic steel EK-181
• ISSN: 2075-1133; 2075-115X
• DOI: 10.1134/S2075113311020067

Dynamics of primary radiation damage, nuclear transmutations, and radioactivity accumulation (activation) and decrease (cooling) during long-term (up to 50 years) irradiation in the neutron spectra of the fast breeder BN-600 and fusion DEMO-RF reactors are calculated using the ACDAM computational system for EK-181 (Fe-12 Cr-W-V-Ta-B) ferritic-martensitic steel. In the BN-600 reactor, at short irradiation times (up to 560 days), the EK-181 steel meets the “low-activation“ criterion, but this criterion is not met for long-term irradiation (more than 30 years). In case of the DEMO-RF reactor and long-term irradiation (up to 50 years), the EK-181 steel meets the low-activation criterion.