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| Corrosion Potential of Metals in Natural River Water |
| Received:December 01, 2016 Revised:February 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2017.02.006 |
| KeyWord:ferrous metal natural river water corrosion potential |
| Author | Institution |
| DING Guo-qing |
1.Qingdao NCS Testing & Protection Technology Co., Ltd., Qingdao , China;2.Qingdao Marine Corrosion Research Institute, Central Research of Iron and Steel, Qingdao , China |
| YANG Zhao-hui |
1.Qingdao NCS Testing & Protection Technology Co., Ltd., Qingdao , China;2.Qingdao Marine Corrosion Research Institute, Central Research of Iron and Steel, Qingdao , China |
| HUANG Gui-qiao |
1.Qingdao NCS Testing & Protection Technology Co., Ltd., Qingdao , China;2.Qingdao Marine Corrosion Research Institute, Central Research of Iron and Steel, Qingdao , China |
| YANG Hai-yang |
1.Qingdao NCS Testing & Protection Technology Co., Ltd., Qingdao , China;2.Qingdao Marine Corrosion Research Institute, Central Research of Iron and Steel, Qingdao , China |
| LIU Kai-ji |
1.Qingdao NCS Testing & Protection Technology Co., Ltd., Qingdao , China;2.Qingdao Marine Corrosion Research Institute, Central Research of Iron and Steel, Qingdao , China |
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| Abstract: |
| 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. |
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