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.
作者
丁国清
杨朝晖
黄桂桥
杨海洋
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)
出处
《装备环境工程》
CAS
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)
关键词
黑色金属
天然河水
腐蚀电位
ferrous metal
natural river water
corrosion potential
