Engineering Transactions, 27, 1, pp. 107-133, 1979

Wpływ Napromieniowania Neutronami na Mechanizmy Lepkoplastycznego Płynięcia Miękkiej Stali

R. Pęcherski
Instytut Podstawowych Problemów Techniki, Warszawa

W pracy przeanalizowano mechanizmy plastycznego płynięcia i warunki kruchego przejścia. Problem ten zbadano dla miękkiej stali na podstawie dostępnych wyników badań eksperymentalnych. Wyznaczono zależność między temperaturą kruchego przejścia, prędkością odkształcenia i wielkością ziarna. Przedyskutowano obszary działania mechanizmów deformacji plastycznej i kruchego pękania na płaszczyźnie temperatura-prędkość odkształcenia. Omówiono podstawowe efekty napromieniowania neutronami oraz jego wpływ na mechanizmy plastycznego płynięcia w miękkiej stali. Wyprowadzono zależności temperatury kruchego przejścia od dozy napromieniowania. Wyznaczono obszary działania mechanizmów dyspacji wewnętrznej dla napromieniowanej miękkiej stali na płaszczyźnie temperatura-prędkość odkształcenia.

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