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| Atmospheric Corrosion of Common Metals Used in Transformer Substation and Protection Measures |
| Received:November 02, 2015 Revised:February 15, 2016 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2016.01.024 |
| KeyWord:transformer substations metal atmospheric corrosion Cl- corrosion resistance |
| Author | Institution |
| YANG Da-ning |
Hainan Electric Power Technology Institute， Haikou ， China |
| WANG Chuan |
Institute of Metal Research， Chinese Academy of Sciences， Shenyang ， China |
| WANG Zhen-yao |
Institute of Metal Research， Chinese Academy of Sciences， Shenyang ， China |
| FU Chuan-fu |
Hainan Electric Power Technology Institute， Haikou ， China |
| PAN Chen |
Institute of Metal Research， Chinese Academy of Sciences， Shenyang ， China |
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| Abstract: |
| This paper reviewed the types of atmospheric corrosion of common metals used in transformer substations and current status of researches on these corrosions. As to stainless steel, aluminum and aluminum alloy, Clin marine atmosphere would lead to crack of passivation coating and pitting would occur when Cl- concentration passes the critical concentration [Cl-]pit. As to copper and copper alloy, the corrosion effect of SO2 is obvious. As to zinc and zinc alloy, Cl- enhances the electrical conductivity of surface liquid film, thus aggravating the corrosion. In conclusion, high wetting time and high Cl- concentration are main causes for atmospheric corrosion of coastal transformer substation. |
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