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| Research Status and Development Direction of Galvanic Corrosion and Protection Technology for Heterogeneous Structural Materials |
| Received:March 16, 2020 Revised:April 17, 2020 |
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| DOI：10.7643/issn.1672-9242.2020.05.006 |
| KeyWord:galvanic corrosion heterogeneous structure preventive measures potential difference galvanic current |
| Author | Institution |
| ZHANG Tian-yu |
Air Force Engineering University, Xi’an , China |
| HE Yu-ting |
Air Force Engineering University, Xi’an , China |
| ZHANG Teng |
Air Force Engineering University, Xi’an , China |
| ZHANG Sheng |
Air Force Engineering University, Xi’an , China |
| MA Bin-lin |
Air Force Engineering University, Xi’an , China |
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| Abstract: |
| In this paper, main factors affecting galvanic corrosion of heterogeneous structure materials were summarized from two aspects:the material's own factors, including anode and cathode, potential, pair spacing, and the environmental factors, including oxygen content, temperature and flow state. The research status of preventive measures against galvanic corrosion of heterogeneous structural materials at home and abroad was discussed. The preventive measures against galvanic couple corrosion at home and abroad were compared in stages of design, manufacture and service. Finally, it pointed out the lack of specifications, standards, and measures as well as other issues on galvanic corrosion prevention. It pointed out that it was needed to further study the influencing mechanism and rule of actual structure on galvanic corrosion of dissimilar materials, and put forward corrosion protection technology way of typical coupling joint. |
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