Performance of structural materials under irradiation is critical to the safe and economic operation of current and future nuclear reactors. NRG has decades of experience on performing materials irradiations over a range of flux and temperature conditions. Through irradiations in the High Flux Reactor and characterization of materials in the Hot Cell Laboratories, data is generated to support:
Typical activities that we carry out in our daily work are:
Lifetime management of nuclear reactors requires knowledge of the aging mechanisms of its components. Material properties of reactor components are affected in particular by the effect of neutron irradiation and other environmental conditions.
NRG performs irradiations in the HFR to study the aging mechanisms of reactor materials. Characterization of the irradiated specimens is then performed in the Hot Cell Laboratories. The data that is acquired from these irradiation programs are used to assess the safe and economic performance of nuclear reactors.
Examples of NRG’s irradiation programs with a focus on the aging mechanisms of reactor materials are:
The nuclear industry is challenged to operate reactors that are safe and economic to increasingly higher standards. Use is made of innovative materials and production techniques to meet these challenges. In order to select the best materials and demonstrate adequate irradiation performance, irradiation testing is performed.
NRG uses the High Flux Reactor and the Hot Cell Laboratory facilities to test materials and components that are designed for nuclear fission and fusion applications. Qualification and screening data are provided to give input to reactor design processes and demonstrate applicability of materials with high confidence.
Examples of NRG’s irradiation programs with a focus on the qualification and development of reactor materials are:
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