Abstract
This paper deals with the evolution of the dislocation structure, phase composition and vacancy voids in new reactor stainless steels over the temperature interval from 500°C to 700°C under irradiation with electrons, neutrons and krypton ions up to high damaging doses (200 dpa). It is shown that the amount of voids formed in stainless steels exposed to irradiation with high-energy particles can be reduced by producing a high-density of direct and indirect sinks of point defects in the form of α/γ phase boundaries and dispersed intermetallics (γ′ and α′ phases in FCC and BCC steels, respectively) formed under irradiation. Compositions of radiation-resistant alloys, including low-activation ones of the Cr13Mn7W2 type having an austenitic–martensitic lath structure, have been proposed.
Published Version
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