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IN‐REACTOR LOW‐CYCLE FATIGUE OF TYPE 0Kh16N15M3B STAINLESS STEEL
Author(s) -
Kiselevsky V. N.,
Kharitonov D. F.
Publication year - 1984
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1984.tb00199.x
Subject(s) - materials science , low cycle fatigue , austenite , torsion (gastropod) , irradiation , hardening (computing) , austenitic stainless steel , neutron , limiting , composite material , metallurgy , structural engineering , nuclear physics , corrosion , microstructure , medicine , mechanical engineering , physics , surgery , layer (electronics) , engineering
An investigation has been carried out on austenitic stainless steel 0Kh16N15M3B under normal conditions and also to neutron irradiation of 6.8 × 10 16 nm ‐2 s ‐1 ( E > 0.1 MeV) intensity. Thin‐walled torsion cylindrical specimens were tested in strain‐controlled fully reversed loading mode at 923 K. Various ranges of strain, pre‐loading fluences and half‐cycle hold times (1, 5 and 30min) were applied. Neutron irradiation was found to result in hardening of the steel, stimulating cyclic stress relaxation and a reduction in cyclic life. When acting together, neutron irradiation and static loads cause a more significant reduction in the number of cycles to failure than if summed up as independent factors. Application of a kinetic failure criterion based on a damage parameter enables an estimation to be made of the limiting state of the steel under high‐temperature cyclic loading with hold periods.