IN-REACTOR LOW-CYCLE FATIGUE OF TYPE 0Kh16N15M3B STAINLESS STEEL
An investigation has been carried out on austenitic stainless steel 0Kh16N15M3B under normal conditions and also to neutron irradiation of 6.8 × 1016nm‐2s‐1 (E > 0.1 MeV) intensity. Thin‐walled torsion cylindrical specimens were tested in strain‐controlled fully reversed loading mode at 923 K. Va...
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Veröffentlicht in: | Fatigue & fracture of engineering materials & structures 1984-10, Vol.7 (4), p.315-328 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | An investigation has been carried out on austenitic stainless steel 0Kh16N15M3B under normal conditions and also to neutron irradiation of 6.8 × 1016nm‐2s‐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. |
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ISSN: | 8756-758X 0160-4112 1460-2695 |
DOI: | 10.1111/j.1460-2695.1984.tb00199.x |