Temperature dependence of the radiation-induced hardening of EP-823 steel after 7-MeV Ni++-ion irradiation

Ferritic-martensitic steel 16Kh12MVSFBR (EP-823) is irradiated with 7-MeV Ni ++ ions to fluences in the range of (2.7–6) × 10 20 ion/m 2 at temperatures of 350–600°C. The obtained temperature dependence of steel hardening after irradiation has a non-monotonic character with a maximum at 380°C. This...

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Bibliographic Details
Published in:Surface investigation, x-ray, synchrotron and neutron techniques x-ray, synchrotron and neutron techniques, 2013-03, Vol.7 (2), p.328-332
Main Authors: Lysova, G. V., Birzhevoi, G. A., Obraztsov, S. M.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Materials Science
Surfaces and Interfaces
Thin Films
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Summary:Ferritic-martensitic steel 16Kh12MVSFBR (EP-823) is irradiated with 7-MeV Ni ++ ions to fluences in the range of (2.7–6) × 10 20 ion/m 2 at temperatures of 350–600°C. The obtained temperature dependence of steel hardening after irradiation has a non-monotonic character with a maximum at 380°C. This dependence is determined by changes in the steel microstructure with irradiation temperature and correlates with the known experimental data on neutron irradiation and results of mathematical-statistical simulation using the bootstrap procedure and a neural-network model of changes in the strength properties of 12% chromium steels of the ferritic-martensitic class after neutron irradiation.
ISSN:1027-4510
1819-7094
DOI:10.1134/S1027451013020390