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論文
600 合金のPWR 一次系水中で形成される酸化皮膜と応力腐食割れ初生に及ぼす溶存水素濃度の影響
著者:
三菱重工業株式会社,小林 高揚,Takaaki KOBAYASHI,杉野 亘,Wataru SUGINO,橋本 篤,Atsushi HASHIMOTO
発刊日:
公開日:
キーワードタグ:
Alloy 600 Crack Initiation Time Crack Propagation Rate Dissolved Hydrogen Nickel Based Alloy Nickel Oxide Oxide Film PWR PWSCC Stress Corrosion Cracking
三菱重工業株式会社,小林 高揚,Takaaki KOBAYASHI,杉野 亘,Wataru SUGINO,橋本 篤,Atsushi HASHIMOTO
発刊日:
公開日:
キーワードタグ:
Alloy 600 Crack Initiation Time Crack Propagation Rate Dissolved Hydrogen Nickel Based Alloy Nickel Oxide Oxide Film PWR PWSCC Stress Corrosion Cracking
This study focused on an initial stage of PWSCC, observed and considered the oxide layer on alloy 600 using three-point bending specimens immersed in 360 °C・30 ml/kg DH and 345 °C・15 ml/kg DH. Crevasses of oxide film along grain boundaries were observed on their surfaces. These conditions are close to chemical equilibrium boundary of Ni/NiO, inhibit the growth of the oxide film on grain boundaries due to lack of oxidizable-Ni and Cr. There is a possibility that their material surfaces in vicinity of grain b...
英字タイトル:
Effect of Dissolved Hydrogen For Oxide Film And Initiating Stress Corrosion Cracking Of Alloy 600 In PWR Primary Water
英字タイトル:
Effect of Dissolved Hydrogen For Oxide Film And Initiating Stress Corrosion Cracking Of Alloy 600 In PWR Primary Water