| 储罐用钢在3.5%NaCl溶液中的腐蚀行为研究 |
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| 引用本文： | 覃明,李言涛,徐玮辰,杨黎晖,侯保荣.储罐用钢在3.5%NaCl溶液中的腐蚀行为研究[J].装备环境工程,2018,15(10):84-88. |
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| 作者姓名： | 覃明 李言涛 徐玮辰 杨黎晖 侯保荣 |
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| 作者单位： | 中国科学院海洋研究所海洋环境腐蚀与生物污损重点实验室;中国科学院大学;中国科学院海洋大科学研究中心;青岛海洋科学与技术国家实验室海洋腐蚀与防护开放工作室 |
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| 基金项目： | 国家重点研发计划项目（2017YFB0903700） |
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| 摘 要： | 目的对比研究三种油气储罐在水压试验时的腐蚀行为特征。方法选用9Ni钢、Q235碳钢、304L不锈钢储罐用材料以及3.5%NaCl模拟海水溶液,采用开路电位、电化学阻抗谱、动电位极化曲线测试方法研究三种储罐用钢在模拟海水中的电化学腐蚀特征,同时结合浸泡质量损失试验和微观腐蚀形貌进行分析。结果 9Ni钢、Q235碳钢、304L不锈钢稳定后的开路电位(vs.SCE)分别为-0.55、-0.64、-0.10m V,Rt值分别为2 792、1 765、125 100,平均腐蚀深度分别为0.070 6、0.160 3、0.002 5 mm/a。微观腐蚀形貌显示,9Ni钢和Q235碳钢表面发生明显的腐蚀,而304L不锈钢只发生轻微的点蚀。结论在3.5%NaCl模拟海水溶液中,304L不锈钢最耐腐蚀,Q235碳钢最易腐蚀,9Ni钢居于两者之间。因此在9Ni钢和Q235碳钢储罐海水试压过程中需要采取临时保护。
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| 关 键 词： | 储罐 3.5%NaCl 腐蚀行为 水压试验 |
| 收稿时间： | 2018/7/13 0:00:00 |
| 修稿时间： | 2018/10/25 0:00:00 |
Corrosion Behavioursof Storage Tank Steel in 3.5%NaCl Solution |
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| QIN Ming,LI Yan-tao,XU Wei-chen,YANG Li-hui and HOU Bao-rong.Corrosion Behavioursof Storage Tank Steel in 3.5%NaCl Solution[J].Equipment Environmental Engineering,2018,15(10):84-88. |
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| Authors: | QIN Ming LI Yan-tao XU Wei-chen YANG Li-hui and HOU Bao-rong |
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| Institution: | 1. Key Laboratory of Marine Environment Corrosion and Bio-fouling, Chinese Academy of Sciences, Qingdao 266071, China;2. University of Chinese Academy of Sciences, Beijing 266071, China;3. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China,1. Key Laboratory of Marine Environment Corrosion and Bio-fouling, Chinese Academy of Sciences, Qingdao 266071, China;3. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;4. Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science andTechnology, Qingdao 266237, China,1. Key Laboratory of Marine Environment Corrosion and Bio-fouling, Chinese Academy of Sciences, Qingdao 266071, China;3. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;4. Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science andTechnology, Qingdao 266237, China,1. Key Laboratory of Marine Environment Corrosion and Bio-fouling, Chinese Academy of Sciences, Qingdao 266071, China;3. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;4. Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science andTechnology, Qingdao 266237, China and 1. Key Laboratory of Marine Environment Corrosion and Bio-fouling, Chinese Academy of Sciences, Qingdao 266071, China;3. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;4. Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science andTechnology, Qingdao 266237, China |
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| Abstract: | |
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| Keywords: | storage tank 3 5%NaCl corrosion behavior hydrostatic test |
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