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| B10铜镍合金与H62黄铜的电偶腐蚀及电绝缘研究 | |
| 引用本文： | 孙保库,李宁,杜敏,李相波.B10铜镍合金与H62黄铜的电偶腐蚀及电绝缘研究[J].装备环境工程,2009,6(2):22-26. |
| 作者姓名： | 孙保库 李宁 杜敏 李相波 |
| 作者单位： | 1. 中国海洋大学,化学化工学院,山东,青岛,266003;海洋腐蚀与防护国家重点实验室,中国船舶重工集团公司第七二五研究所,山东,青岛,266071 2. 海洋腐蚀与防护国家重点实验室,中国船舶重工集团公司第七二五研究所,山东,青岛,266071 3. 中国海洋大学,化学化工学院,山东,青岛,266003 |
| 摘 要： | 主要研究了船舶海水系统中B10铜镍合金与H62黄铜间的电偶腐蚀性能及电绝缘控制方法。通过电位监测、极化曲线测试考察了两种材料的电偶腐蚀倾向；通过电偶腐蚀试验、SEM观察和EDS分析考察了试样的电偶腐蚀程度、微观腐蚀形貌和成分变化；通过串联不同阻值电阻的模拟电绝缘试验，测定了两材料偶合的电绝缘判据。结果表明，B10与H62黄铜间存在明显的电偶腐蚀倾向，直接偶连时H62黄铜发生严重的脱锌腐蚀。电绝缘技术是控制电偶腐蚀的有效措施之一，串联电阻大于等于20kΩ时，可基本消除B10与H62黄铜间的电偶腐蚀。 |
| 关 键 词： | 电偶腐蚀 电绝缘 海水管系 B10铜镍合金 H62黄铜 |
Study of the Galvanic Corrosion and Electric Insulation of Cu/Ni Alloy and H62 Brass Couple |
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| SUN Bao-ku,LI Ning,DU Min,LI Xiang-bo.Study of the Galvanic Corrosion and Electric Insulation of Cu/Ni Alloy and H62 Brass Couple[J].Equipment Environmental Engineering,2009,6(2):22-26. | |
| Authors: | SUN Bao-ku LI Ning DU Min LI Xiang-bo |
| Institution: | 1.Ocean University of China;Qingdao 266003;China;2.State Key Laboratory for Marine Corrosion and Protection;Luoyang Ship Material Research Institute;Qingdao 266071;China |
| Abstract: | Galvanic corrosion characteristic and insulation control of Cu/Ni alloy and H62 brass couple for seawater pipelines in ships were studied.Galvanic corrosion tendency was investigated using free corrosion potential test and potentiodynamic curves;galvanic corrosion grade,microstructure,and composition of the samples were investigated by galvanic corrosion experiments,SEM,and EDS;criterion of electric insulation was investigated using simulated electric insulation experiments connecting different resistances.... |
| Keywords: | galvanic corrosion electric insulation seawater pipelines B10 Cu/Ni alloy |
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