高温水中におけるオーステナイト系合金の高応力下酸化-2 表面硬化層の影響評価
英字タイトル:
Oxidation Behavior of Austenitic Alloys under High Stress Condition in High Temperature Water-Effect of Surface Hardened Layer
著者:
竹田 陽一 Yoichi TAKEDA 佐藤 崇之 Takayuki SATO 庄子 哲雄 Tetsuo SHOJI 大地 昭生 Akio OHJI
発刊日:
公開日:
Boiling Water ReactorOxide FilmStainless SteelStress Corrosion Cracking
Oxidation Behavior of Austenitic Alloys under High Stress Condition in High Temperature Water-Effect of Surface Hardened Layer
著者:
竹田 陽一 Yoichi TAKEDA 佐藤 崇之 Takayuki SATO 庄子 哲雄 Tetsuo SHOJI 大地 昭生 Akio OHJI
発刊日:
公開日:
カテゴリ: 第6回
キーワードタグ:Boiling Water ReactorOxide FilmStainless SteelStress Corrosion Cracking
概要
Surface oxide behavior on alloys in high temperature plays an important role in the stress corrosion clacking (SCC) mechanism according to plausibl e existing SCC models. In this investigation, roughness analysis of oxide/alloy interface on stainless steels after exposure in oxygenated high pur ity water under high stress conditions. A special emphasis was placed on how the oxidation penetration localized and went through the surface harde ned layer. It was pronounced that SCC initiation on hardened layer due to it helped to form much thicker oxide and localized oxidation penetration.
