Thermal embrittlement of cast austenitic stainless steel components from the decommissioned advanced thermal prototype reactor Fugen has been characterized. Cast stainless steel materials were obtained from recirculation pump casing. The actual time at temperature for the materials was 138,000 h at 275 oC. The “Fugen” material show modest decrease in Charpy-impact properties and a small increase in micro-Vickers hardness in ferrite phase because of thermal aging at relatively low service temperatures. ...
英字タイトル:
Research of Estimation Method of Thermal Aging Embrittlement on Cast Austenitic Stainless Steel

(Times New Roman 10pt) should be about 150 words. How to use the real materials of the Nuclear Power Plant during decommissioning stage are studied and discussed for a research of ageing management for safe long term operating. Moreover the real structural materials of “Fugen” Power Station during decommissioning stage has been performed to study for the research of ageing management. ...
英字タイトル:
Research of using structural materials of decommissioning Nuclear Power Plant for technical evaluation of ageing management for safe long term operating