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Information × Registration Number 0211U005461, 0110U004273 , R & D reports Title Development of methodology study possibility extension of the safe operation of nuclear reactors internals of WWER-1000 popup.stage_title Створення науково обґрунтованого метода прогнозування розпухання сталі Х18Н10Т в імітаційних і реакторних умовах Head Voyevodin Victor Mykolayovych, Доктор фізико-математичних наук Registration Date 30-11-2011 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 Mechanisms of steel 18Cr-10NiTi swelling - the main material of pressure vessels internal of reactors WWER-1000 - are studied in conditions of simulation irradiation by heavy ions. Experimental curves of steel swelling are plotted in dependence on dose and irradiation temperature under dose rates 10-2 and 10-3 dpa/s. Dependences of temperature maximum of swelling, of incubation period and of swelling rate on stationary stage on dose rate are analyzed. On the base of data obtained under heavy ions irradiation and on the base of reactor data function model-ing the swelling of investigated steel is obtained in the wide range of doses, of temperatures and of dose rates. Firstly we have managed to describe the swelling behavior under reactor and ion irradiation (in range between 10-2 and 10-7 dpa/s). Thus the opportunity to predict behaviour of swelling in different-type reactors has appeared on the basis of simulation researches. Maps of swelling are plotted that allow predict the steel behavior in necessary condition of irradiation up to the over designed doses. Product Description popup.authors Бородін Олег Вікторович Брик Віктор Васильвич Василенко Руслан Леонідович Воєводін Віктор Миколайович Кальченко Олександр Сергійович Лимар Раїса Іванівна Мельниченко Валентин Вікторович Назаренко Євген Олександрович Неклюдов Іван Матвійович Пермяков Олексій Вікторович Пилипенко Микола Микола Миколайович Фоменко Юлія Едуардівна popup.nrat_date 2020-04-02 Close