Ponente
Descripción
The qualification assessment of low-activation ferritic-martensitic steel (RAFM), a key structural material for fusion DEMO reactors, is a critical challenge for the realization of such reactors. The IFMIF-DONES program identifies the acquisition of neutron irradiation data as a key strategy to support this qualification assessment. The design of future in-vessel components will be verified according to structural design codes that have not yet been fully established. In particular, non-inspectable regions are expected to be evaluated through probabilistic fracture analysis based on hypothetical defects. Therefore, the application of probabilistic risk assessment (PRA) incorporating the statistical distribution of fracture characteristics is essential. This approach requires reliable fracture toughness and strength data that capture material variability under relevant conditions. In this study, we present a framework for acquiring such fracture mechanics data using small-scale specimen technology, which is particularly advantageous
