Hardness of AISI Type 410 Martensitic Steels After High Temperature Irradiation via Nanoindentation

The hardness of irradiated AISI type 410 martensitic steel, which is utilized in structural and magnetic components of nuclear power plants, is investigated in this study. Proton irradiation of AISI type 410 martensitic steel samples was carried out by exposing the samples to 3 MeV protons up to a 1.0 × 10^17 p/cm^2 fluence level at a representative nuclear reactor coolant temperature of 350 °C. The assessment of deleterious effects of irradiation on the microstructure and mechanical behavior of the AISI type 410 martensitic steel samples via transmission electron microscopy-energy dispersive spectroscopy and cross-sectional nano-indentation showed no significant variation in the microscopic or mechanical characteristics. These results ensure the integrity of the structural and magnetic components of nuclear reactors made of AISI type 410 martensitic steel under high-temperature irradiation damage levels up to approximately 5.2 × 10^-3 dpa.
Publisher
KOREAN INST METALS MATERIALS
Issue Date
2017-11
Language
English
Article Type
Article
Keywords

ROD DRIVE MECHANISM; FERRITIC/MARTENSITIC STEELS; PROTON IRRADIATION; STAINLESS-STEEL; ION IRRADIATION; POSITRON-ANNIHILATION; NEUTRON-IRRADIATION; HT-9 STEEL; MICROSTRUCTURE; F82H

Citation

METALS AND MATERIALS INTERNATIONAL, v.23, no.6, pp.1257 - 1265

ISSN
1598-9623
DOI
10.1007/s12540-017-7141-7
URI
http://hdl.handle.net/10203/228519
Appears in Collection
MS-Journal Papers(저널논문)NE-Journal Papers(저널논문)
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