金属材料在天然河水中的腐蚀电位研究  

Corrosion Potential of Metals in Natural River Water

作　　者：丁国清[1,2] 杨朝晖[1,2] 黄桂桥[1,2] 杨海洋[1,2] 刘凯吉 DING Guo-qing YANG Zhao-hui HUANG Gui-qiao YANG Hai-yang LIU Kai-ji(Qingdao NCS Testing ＆ Protection Technology Co., Ltd., Qingdao 266071, China Qingdao Marine Corrosion Research Institute, Central Research of Iron and Steel, Qingdao 266071, China)

机构地区：[1]青岛钢研纳克检测防护技术有限公司,山东青岛266071 [2]钢铁研究总院青岛海洋腐蚀研究所,山东青岛266071

出　　处：《装备环境工程》2017年第2期31-35,共5页Equipment Environmental Engineering

基　　金：国家科技基础条件平台专题项目(2005DKA10400-13Z1)

摘　　要：目的弄清金属材料在天然河水中的腐蚀电位变化规律,获得它们的腐蚀电位序。方法利用自行研制的多通道电位自动采集装置,测试金属材料在武汉长江水中的腐蚀电位。结果获得了24种金属材料在天然河水中的腐蚀电位-时间曲线及腐蚀电位序图谱。结论金属材料在天然河水中初期腐蚀电位变化较快,同种类金属腐蚀电位变化规律基本相同,不同种类的金属材料腐蚀电位变化规律不同;金属材料在天然河水中的稳定腐蚀电位从低到高大致为镁阳极、纯锌、铝合金、铸铁、碳钢、低合金钢、铜合金和不锈钢。Objective To analyze change rules of corrosion potential in natural water and obtain their galvanic series. Methods The corrosion potential of metals in the Yangtze River of Wuhan section was measured by multi-channel potential data acquisition device which was developed by ourselves. Results The potential-time curves and galvanic series graph for corrosion of 24 metals in natural river water were obtained. Conclusion The corrosion potential of metals in natural water changes quickly in the preliminary stage. The corrosion potential change rules of the same kind of metals are basically the same. The corrosion potential change rules of different kind of metals are different. The stable corrosion potential series of metals in natural river water （from bottom to top） is magnesium anode, pure zinc, aluminium alloy, iron casting, carbon and low alloy steel, copper alloy, stainless steel.

关 键 词：黑色金属 天然河水 腐蚀电位 

分 类 号：TJ04[兵器科学与技术—兵器发射理论与技术] TG172.5[金属学及工艺—金属表面处理]