采用开路电位监测、线性极化等电化学手段, 探讨了舰船常用的管路材料B10以及硅黄铜在模拟深海环境中的电化学腐蚀行为, 同时采用自制的多通道电偶腐蚀测量仪和腐蚀失重法讨论了不同温度下B10和硅黄铜之间的电偶腐蚀行为。结果表明,在静态海水中, 腐蚀电偶序顺序为B10> 硅黄铜, B10作为偶合阴极受到保护, 硅黄铜为偶合阳极被加速腐蚀, 电偶腐蚀效应及电偶腐蚀敏感度随着温度的降低而降低, 因为温度降低一方面减小了阴阳两极之间的驱动力, 另一方面减弱了极化过程。

Open circuit potential monitoring, linear polarization measurements and other electrochemical means in simulated deep-sea environment were applied to explore the electrochemical corrosion behavior of commonly used ship piping materials B10 and silicon brass. By selfmade multi-channel measuring instrument for galvanic corrosion and corrosion weight loss, the galvanic corrosion behavior of B10 and silicon brass under low temperature and hypoxia conditions was investigated. The results show that the corrosion potential sequence of the materials was B10>silicon brass. B10 alloy acting as the couple cathode was protected from corrosion, while silicon brass was the sacrificial anode. The galvanic effect and the susceptibility of the coupling reduced with decreasing temperature. Because the temperature decreasing on the one hand reduced the driving force between cathode and anode, on the other hand weakened the polarization process.