Abstract
Pure nickel, the model material for austenitic steels used in reactors, with an electrical resistivity ratio of ρ300 K/ρ4.2 K ~ 300 has been investigated under electron and neutron irradiation at TIRR ~ 320-340 K. Three of its states have been subjected to irradiation: a recrystallized state at 873 K, a deformed one to 90%, and an annealed one at 450 K after deformation to remove deformationinduced vacancies. It is has been experimentally shown that neutron and electron irradiation of the deformed nickel results in the sepa� ration of radiationinduced defects. This separation occurs because a significant portion of the radia� tioninduced interstitial atoms is captured by disloc ation sinks and does not participate in recombina� tion with vacancies. As a result, the concentration of accumulated vacancies in the deformed nickel can exceed their concentration in the annealed nickel and be almost twice as high. At higher doses of neutron irradiation, above 10 18 cm -2 , separation does not occur, since vacancy sinks in the form of clusters are more powerful than dislocation sinks.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
