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用交流阻抗、恒电位阶跃、极化曲线、线性极化等四种电化学方法评价了 MBT预膜处理前后凝汽器铜管的耐腐蚀性。实验表明 ,经 MBT预膜后铜管的耐蚀性有了明显提高。
The corrosion resistance of condenser copper tubes before and after MBT pre-filming was evaluated by four electrochemical methods: AC impedance, potentiostatic step, polarization curve and linear polarization. Experiments show that after the MBT pre-membrane corrosion resistance of copper has been significantly improved.