第3回
圧力容器の照射脆化予測における Mn 成分の影響
著者:
木村 晃彦,Akihiko KIMURA,藪内 聖皓,Kiyohiro YABUUCHI,笠田 竜太,Ryuta KASADA
発刊日:
公開日:
キーワードタグ:
For extension of lifetime of light water reactors, it is essential to estimate irradiation embrittlement of reactor pressure vessel steels (RPVS) more precisely. In the c urrent estimation method, manganese is not considered to be the important element causing embrittlement. However, recently, it was observed that manganese remarkably enha nced neutron irradiation hardening of iron alloys at a neutron fluence higher than 3 x 10^n/mthat corresponds to more than 30 years operation of reactors. In this study,...
英字タイトル:
Influence of Mn Concentration on the Prediction of Irradiation Embrittlement of RPV
第2回
軽水炉圧力容器寿命評価におけるマンガン影響
著者:
木村 晃彦,Akihiko KIMURA
発刊日:
公開日:
キーワードタグ:
For extension of lifetime of light water reactors, it is essential to estimate irradiation embrittlement of reactor pressure vessel steels (RPVS) more precisely. In the cur rent estimation method, manganese is not considered to be the important element causing embrittlement. However, recently, it was observed that manganese remarkably enhanced neutron irradiation embrittlement of iron alloys at a neutron fluence higher than 3 x 102n/m? that corresponds to more than 30 years operation of reactors. In this s...
英字タイトル:
Influences of Mn on the Estimation of Lifetime of Reactor Pressure Vessel
第3回
軽水炉圧力容器鋼溶接部の照射脆化評価技術
著者:
熊野 秀樹,Hideki YUYA,鈴木 哲也,Tetsuya SUZUKI,肥田 茂,Shigeru HIDA,木村 晃彦,Akihiko KIMURA
発刊日:
公開日:
キーワードタグ:
The ductile-brittle transition behavior of neutron-irradiated welded A533B Cl.1 steel has been studied by means of small specimen test technique for discussing the specime n size effects on the impact properties. Standard size, one-third size and 1.5mm size Charpy V-notch specimens were prepared. Neutron irradiation was performed in JMTR wit h fluencies up to 0.75 and 1.3 X 1024 n/m°(E>1 MeV). Normalization of the USE is done by a curve fitting method and the USE of different size of specimens can be expre...
英字タイトル:
Evaluation Technique of Neutron-Irradiation Embrittlement in Welded RPV