| E36钢的海水腐蚀模拟试验研究 |
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| 引用本文： | 张万灵,刘建容,黄桂桥. E36钢的海水腐蚀模拟试验研究[J]. 材料保护, 2009, 42(11) |
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| 作者姓名： | 张万灵 刘建容 黄桂桥 |
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| 作者单位： | 张万灵,刘建容(武汉钢铁(集团)公司研究院,湖北,武汉,430080);黄桂桥(青岛海洋腐蚀研究所,山东,青岛,266071) |
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| 摘 要： | 青岛海域投样初期的24 h内,电联接长尺试样上的阴阳极交错出现,并非潮差区为阴极,海水全浸区为阳极,与公认的氧浓差电池引起潮差区钢样受阴极保护之说不相符.在试验室内用人造海水和3%NaCl溶液模拟潮差区钢样的腐蚀环境,对干湿交替试样与全浸试样间的电偶电流进行了研究,探讨了潮差区钢样受阴极保护的原因.结果表明:潮差区试样表面锈层由FeOOH和Fe_3O_4组成,海水全浸区试样表面锈层由FeOOH组成,这种锈层结构的差异直接产生了试样间的腐蚀电位差,使潮差区的钢样受到了阴极保护,最终导致长尺试样在潮差区的腐蚀速率降低.
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| 关 键 词： | E36钢 海水腐蚀 锈层 阴极保护 |
Corrosion Behavior of E36 Steel in Artificial Seawater and 3% NaCl Solution |
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| ZHANG Wan-ling,LIU Jian-rong,HUANG Gui-qiaoCorporation,Wuhan ,China,. Qingdao Institute forMarine Corrosion,Qingdao ,China).. Corrosion Behavior of E36 Steel in Artificial Seawater and 3% NaCl Solution[J]. Journal of Materials Protection, 2009, 42(11) |
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| Authors: | ZHANG Wan-ling LIU Jian-rong HUANG Gui-qiaoCorporation Wuhan China . Qingdao Institute forMarine Corrosion Qingdao China). |
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| Affiliation: | ZHANG Wan-ling1,LIU Jian-rong1,HUANG Gui-qiao2( 1. Re-search , Development Center,Wuhan Iron & Steel ( Group)Corporation,Wuhan 430080,China,2. Qingdao Institute forMarine Corrosion,Qingdao 266071,China). |
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| Abstract: | The corrosion behavior of long-sizesteel samples in 3% NaCl solution and artificial seawater wasstudied in laboratory. The current of the electric couple betweenalternately dried and wetted sample and fully immersed samplewas measured, and the causes responsible for the cathodic protec-tion of the steel samples at the tide zone were discussed. Resultsindicate that rusted layer consisted of FeOOH and Fe3O4 isformed on the surface of the samples at the tide zone, while rus-ted layer consisted of FeOOH is form... |
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| Keywords: | E36 steel seawater corrosion cathodic protection |
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