Authors previously reported that Eddy current method and AC magnetization method have potential to be applied for development of diagnostic technics to detect the sign of augmentation of the irradiation assisted stress corrosion cracking (IASCC) susceptibility before cracking on the austenitic stainless steel used as structural material in nuclear power plants. In typical austenitic stainless steels such as type304, magnetic ferrite phase would exist in the alloy before irradiation, and it is concerned...
英字タイトル:
Study on Magnetic Property Change on Neutron Irradiated Austenitic Stainless Steel

Authors previously reported that magnetic data obtained by using Eddy current method and AC magnetization method showed correlation with the increase of susceptibility of the irradiation assisted stress corrosion cracking (IASCC) on neutron irradiated austenitic stainless alloy specimens. To discuss the mechanism of the correlation, microstructure observation was conducted on the irradiated specimen, and this result, magnetic the permalloy radiation induced phase (FeNimagnetic 3) formation phase form...
英字タイトル:
Study on Magnetic Property Change on Neutron Irradiated Austenitic Stainless Steel

This study proposed an evaluation method of damage occurrence of core structural materials by simulation model. Irradiation assisted stress corrosion cracking (IASCC) is one of the damage modes among aged core components. IASCC was thou ght to be caused by material degradation such as losses of workability due to radiation hardening and corrosion resistance due to radiation-induced segregation and residual stress due to welding, then the influence of residual stress on both radiation hardening and radiatio...
英字タイトル:
Study on preventive maintenance of core structural components by evaluating the influence ofresidual stress on irradiation assisted stress corrosion cracking behavior