OXIDE DISPERSION STRENGTHENED STEELS AS CANDIDATE STRUCTURAL MATERIALS FOR NUCLEAR AGGRESSIVE ENVIRONMENTS

In this paper, a description of the past and present research activities for the development of the Oxide Dispersion-Strengthened (ODS) Steels will be carried out, showing why ODS steels are considered among the best candidate structural materials in very aggressive nuclear environments: it can find application as material for the cladding in nuclear fast breeding reactors, or in the blanket/first wall of the fusion reactor as well. General information about the anisotropy of its microstructure, its tensile and creep properties, how they result affected by, and also its esistance to irradiation will be provided.