Author: Thomas P. Davis
Date of publication: June 2018
Scientific advice to the Office for Nuclear Regulation, UK’s civil nuclear regulator.
This research report investigates the available and developed materials for the next generation nuclear reactors and is intended to contribute to the development of knowledge on the area of advanced nuclear technologies (ANT) in the Office for Nuclear Regulation (ONR) by providing inspectors with a review of the publicly available information. The operational loads and environmental conditions associated with these new nuclear technologies impose many material and fabrication challenges for which ONR needs to develop more detailed knowledge relating to reactor core designs in ANT. This report investigates the iron-based materials that could be used for fuel cladding and core components operating under aggressive operating conditions. Sodium-cooled fast reactors (SFRs) are selected as an example for such conditions (erosive coolant, high temperature and high neutron flux) and wide range of operational experience (OPEX). A set of criteria have been established and applied for identification of the gaps in the publicly available knowledge regarding the properties, applicability and availability of such materials.
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