Abstract Cavitation erosion-corrosion (CE-C) behaviour of various copper alloys for ship propellers were investigated in sulphide-containing 3.5% NaCl solutions. Results indicate that the CE-C resistance remarkably decreases with increase in sulphide concentration for cast and friction stir processed nickel-aluminum bronzes. CE increases the current density by approximately two orders of magnitude and causes a positive potential shift when the sulphide concentration exceeds 50 ppm. The synergistic effect between CE and corrosion contributes greatly to CE-C degradation in sulphide solutions. However, the CE-C behaviour is insensitive to sulphide concentration for manganese-aluminum bronze and manganese brass. In all solutions, CE causes a positive potential shift and increases the current density by less than one order of magnitude. Mechanical attack dominates the CE-C damage.

中文翻译：

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含硫化物 3.5% NaCl 溶液中各种铜合金的空蚀与腐蚀协同效应

摘要 研究了船用螺旋桨用各种铜合金在含硫化物 3.5% NaCl 溶液中的气蚀腐蚀 (CE-C) 行为。结果表明，对于铸造和搅拌摩擦加工的镍铝青铜，随着硫化物浓度的增加，耐 CE-C 性显着降低。CE 将电流密度增加大约两个数量级，并在硫化物浓度超过 50 ppm 时引起正电位偏移。CE 和腐蚀之间的协同效应极大地促进了硫化物溶液中 CE-C 的降解。然而，CE-C 行为对锰铝青铜和锰黄铜的硫化物浓度不敏感。在所有解决方案中，CE 会导致正电位偏移并将电流密度增加不到一个数量级。