Tensile and low cycle fatigue properties of different ferritic/martensitic steels after the fast reactor irradiation ‘ARBOR 1’

Assessment of design limits and criteria requirements for Eurofer structures in TBM components

“…Few data are available on the consequences of neutron irradiation on the fatigue behaviour of Eurofer97 and other RAFM steels [45][46][47]. As a general rule, the fatigue lifetime of the irradiated material should be shorter because of loss of ductility and significant increase in cyclic softening.…”

“…For lower strain ranges, irradiation seems to have a positive effect, increasing the number of cycles to failure. This can be explained by the increase of the yield stress point (and consequently in the elastic range of the material) with irradiation hardening [45].…”

Thermal fatigue of DEMO first wall due to pulsed operation

“…In order to conduct the fatigue analysis, fatigue curve(s) (S-N curves) are required. The available data regarding the fatigue curve or design curve in the literature is somewhat limited [6][7][8].…”

Damage assessment in structural metallic materials for advanced nuclear plants

“…The data points were replotted from literature [36,37]. The highest life-times for total strain ranges above 1% were found for the base materials (unirradiated and without dispersion).…”

“…4 Fatigue curves of a martensitic steel (EUROFER) in different conditions, with and without dispersoid [36]. Data for 13Cr-ODS and 9Cr-ODS [37] are also included. Although they were measured at higher temperatures, the fit into the general picture This cyclic softening not only reduces the yield strength, it also increases the strain rates as a function of time to rupture (Monkman-Grant).…”