第7回
ステンレスにおける水素同位体透過挙動の解明
著者:
押尾 純也,Junya OSUO,倉田 理江,Rie KURATA,小林 真,Makoto KOBAYASHI,鈴木 優斗,Masato SUZUKI,王 万景,Wanjing WANG,大矢 恭久,Yasuhisa OYA,奥野 健二,Kenji OKUNO
発刊日:
公開日:
キーワードタグ:
Stainless steel is used in various nuclear installations as a major structural material. Tritium is produced by several nuclear reactions in these facilities. It is considered that the hydrogen isotope included tritium permeated for stainless steel through the interaction such as dissolution, diffusion and recombination, and is released on the atmosphere. Therefore, it is important to clarify permeation behavior of tritium in stainless steel from the viewpoint for improvement of the social acceptability o...
英字タイトル:
Study on permeation behavior of hydrogen isotope in stainless steel
特集記事
特集記事「高度評価・分析技術」(3) 超小型試験片による原子炉圧力容器鋼の強度評価技術
著者:
山本 真人,Masato YAMAMOTO 小林 知裕 Tomohiro KOBAYASHI 信耕 友樹 Tomoki SHINKO?
発刊日:
公開日:
強度試験に用いる鋼材を原子炉内の限られたスペースで中性子照射させる必要から、小型試験片による試験技術は原子炉圧力容器の監視試験のキー技術であり、継続して開発が続けられてきた。当所で開発と実用化を目指してきた試験技術から、現行の監視試験片の1/8以下の大きさで破壊靭性を評価できる技術と、直径8mm、板厚0.5mmという小型円板でと引張強度特性を評価する技術を紹介する。 ...
第14回
耐環境性水素濃度計の開発
著者:
長谷川 翔平,Shohei HASEGAWA,丸田 祐史,Yuji MARUTA,右近 浩幸,Hiroyuki UKON,大庭 雅人,Masato OBA
発刊日:
公開日:
キーワードタグ:
Mitsubishi Heavy Industries, LTD (MHI) developed accident tolerant in-containment hydrogen monitoring system that can operate under harsh environmental conditions during severe accident. The new hydrogen monitoring system consists of two types of detectors, which have different features and operating principles such as high sensitivity (for monitoring low hydrogen concentration) and wide range (for monitoring high hydrogen concentration of up to 20vol%), and hydrogen indication and transmitting module...
英字タイトル:
Development of In-containment Hydrogen Sensor System against Harsh Environment