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| Influences of Copper Ions Dissolved out of Copper Samples on Corrosion of Aluminum Alloys in Seawater |
| Received:July 29, 2016 Revised:February 15, 2017 |
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| DOI：10.7643/ issn.1672-9242.2017.02.001 |
| KeyWord:copper ion aluminum alloy seawater corrosion |
| Author | Institution |
| HUANG Gui-qiao |
1.Qingdao NCS Testing & Corrosion Protection Technology Co., Ltd, Qingdao , China;2.Qingdao Research Institute for Marine Corrosion, Qingdao , China |
| YANG Hai-yang |
1.Qingdao NCS Testing & Corrosion Protection Technology Co., Ltd, Qingdao , China;2.Qingdao Research Institute for Marine Corrosion, Qingdao , China |
| LIU Wen |
1.Qingdao NCS Testing & Corrosion Protection Technology Co., Ltd, Qingdao , China;2.Qingdao Research Institute for Marine Corrosion, Qingdao , China |
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| Abstract: |
| Objective To learn influences of copper ions dissolved out of copper samples exposed to seawater on corrosion of neighboring aluminum alloys. Methods The method of exposure test in seawater was adopted. Results Corrosion results of four kinds of aluminum alloys in Qingdao and Xiamen for 1 year of exposure were obtained. Conclusion Copper ions dissolved out of the copper samples exposed to seawater make the ion concentration around the seawater increase. Copper ions dissolved out of the copper samples have no influence on the corrosion of LF3M, 180YS and LC4CS(BL), which does not suffer from local corrosion during the test. Copperions dissolved out of the copper samples obviously increase the corrosion of LD2CS which suffers from pitting and crevice corrosion during the test. |
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