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| Electrochemical Properties of Al-Zn-In Aluminum Alloy Sacrificial Anodes |
| Received:January 25, 2019 Revised:February 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.08.001 |
| KeyWord:aluminum alloy sacrificial anode electrochemical properties current efficiency corrosion |
| Author | Institution |
| ZHANG Guo-qing |
Offshore Oil Engineering Co., Ltd, Tianjin , China |
| QIAN Si-cheng |
Offshore Oil Engineering Co., Ltd, Tianjin , China |
| ZHANG You-hui |
Offshore Oil Engineering Qingdao Co., Ltd, Qingdao , China |
| ZHENG Zhi-jian |
NCS Testing Technology Co., Ltd, Qingdao , China |
| YANG Zhao-hui |
NCS Testing Technology Co., Ltd, Qingdao , China |
| LU Wen-ping |
NCS Testing Technology Co., Ltd, Qingdao , China |
| SUN Tian-xiang |
NCS Testing Technology Co., Ltd, Qingdao , China |
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| Abstract: |
| Objective To study the electrochemical performances of three Al-Zn-In aluminum alloy sacrificial anodes with different compositions in conventional seawater environment. Methods Sacrificial Anodecurrent efficiency test and surface morphology observation were used. Results The current efficiency of three aluminum alloy sacrificial anodes with different components was all over 90%. The surface dissolution of aluminum alloy sacrificial anode of component 3 was the most uniform, showed uniform dissolution morphology with no obvious pitting and intergranular corrosion. Conclusion The electrochemical performance of Al-Zn-In sacrificial anode can be improved by adding adequate amount of In, Zn and moderate Si elements. Among three Al-Zn-In sacrificial anodes with different composition, the electrochemical performance of sacrificial anode with component 3 is the best. |
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