Search academic texts

Registration Number

0223U000447, 0119U101759 , R & D reports

Title

Improvement of the metal state evaluation methods and strength of complex units and elements of the first nuclear power circuit equipment using small-scale specimens

Head

Kharchenko Valerii V., Доктор технічних наук

Registration Date

07-01-2023

Organization

GS Pisarenko Institute of Strength Problems of the National Academy of Sciences of Ukraine

Description

On the basis of experimental studies of impact strength and fracture toughness of heat-resistant steels of the NPPs 1st circuit using standard, sub-sized and miniature specimens, the energy characteristics of fracture in the operating temperature range, in particular, the specific energy of brittle fracture at the level of 0.6 0.15 J/cm2, were determined on the lower shelf of the fracture energy temperature dependence and it was shown the influence of the specimens cut direction on them, what can lead to a significant change in the critical brittleness temperature Tk (by 10-30 °C). The obtained results of experimental and computational studies can be used to search for additional safety margins to assessment the life-time of reactor pressure vessels and NPPs equipment elements 

Product Description

popup.authors