Abstract The effect of magnetite on the corrosion of carbon steel was investigated in simulated secondary water of pressurized water reactors at 60 °C by using the immersion and electrochemical tests. The corrosion rate of carbon steel was increased by the galvanic coupling with magnetite, and was more accelerated with increasing the area ratio of magnetite to carbon steel. From the electrochemical behavior of carbon steel and magnetite, it was verified that the corrosion of carbon steel is accelerated by a galvanic corrosion mechanism. This phenomenon is expected to be an acceleration factor on the corrosion of carbon steel piping.

中文翻译：

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流动条件下磁铁矿在脱气碱性溶液中对碳钢腐蚀行为的电偶效应

摘要 采用浸没试验和电化学试验，在60 ℃压水堆模拟二次水中研究了磁铁矿对碳钢腐蚀的影响。碳钢的腐蚀速率因与磁铁矿的电偶耦合而增加，并且随着磁铁矿与碳钢面积比的增加而加速。从碳钢和磁铁矿的电化学行为来看，证实了碳钢的腐蚀是通过电偶腐蚀机制加速的。这种现象有望成为碳钢管道腐蚀的加速因素。