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模擬腐食生成物中Fe(III)/Fe(II)比による炭素鋼の腐食挙動への影響

Influence of Fe(III)/Fe(II) Ratio in Dummy Corrosion Product on the Corrosion Behavior of Carbon Steel

谷口 直樹 ; 建石 剛*; 西村 務*; 川上 進

Taniguchi, Naoki; Tateishi, Tsuyoshi*; Nishimura, Tsutomu*; Kawakami, Susumu

模擬腐食生成物共存下における炭素鋼の腐食挙動と水素発生挙動を浸漬試験により検討した。試験の結果、炭素鋼の腐食速度の大きな加速は模擬腐食生成物中に過剰の3価鉄を含む場合に生じることがわかった。

The corrosion rate and hydrogen evolution behavior of carbon steel were investigated by immersion test of carbon steel in contact with dummy corrosion product. According to this result, the severe corrosion acceleration occurs when the corrosion product contains excessive Fe(III), and the main cathodic reaction is Fe(III) reduction.

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