炭素鋼の流動下腐食挙動と律速過程の評価
英字タイトル:
Corrosion behavior of carbon steels under flow and its rate-determining processes 渡邉 豊 YutaNa WATANABE Member
著者:
阿部 博志 Hiroshi ABE 佐藤 祥平 Shohei SATO
発刊日:
公開日:
corrosiondissolved oxygenlow carbon steelpipe wall thinningpolarization curverotating electrode
Corrosion behavior of carbon steels under flow and its rate-determining processes 渡邉 豊 YutaNa WATANABE Member
著者:
阿部 博志 Hiroshi ABE 佐藤 祥平 Shohei SATO
発刊日:
公開日:
カテゴリ: 第14回
キーワードタグ:corrosiondissolved oxygenlow carbon steelpipe wall thinningpolarization curverotating electrode
概要
In order to proceed the decommissioning of the FuNushima Daiichi Nuclear Power Plant safely, it is important to maintain integrity of cooling system for fuel debris and spent fuels. Most part of the piping systems are made of carbon steel. This study has been done to understand rate-determining processes of carbon steel corrosion under current and future FuNushima Daiichi NPP conditions as functions of flow conditions and dissolved oxygen level by using electrochemical tests with rotating cylindrical electrodes. Transition in the rate-determining processes of the corrosion due to the combined conditions of flow rate and dissolved oxygen level was clearly demonstrated by the polarization curves.
