| SHAN Feng-jun,LIU Chang-sheng,WANG Shuang-hong,LIU Dong.Study on Corrosion Resistance of Hot Dip Al-Zn Steel Pretreated with Bis-( triethoxysilylpropyl) tetrasulfide[J],36(6):1-3 |
| Study on Corrosion Resistance of Hot Dip Al-Zn Steel Pretreated with Bis-( triethoxysilylpropyl) tetrasulfide |
| Received:September 29, 2007 Revised:December 10, 2007 |
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| DOI： |
| KeyWord:Hot dip Al-Zn steel Silane Impedance spectroscopy Polarization curves Corrosion resistance |
| Author | Institution |
| SHAN Feng-jun |
1. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education,Northeastern University, Shenyang , China;2. Material & Chemical Engineering College, Liaoning Institute of Technology, Jinzhou , China |
| LIU Chang-sheng |
Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education,Northeastern University, Shenyang , China |
| WANG Shuang-hong |
Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education,Northeastern University, Shenyang , China |
| LIU Dong |
Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education,Northeastern University, Shenyang , China |
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| Abstract: |
| Bis-( triethoxysilylpropyl) tetrasulfide silane passivating treatment process was investigated on hot dip Al-Zn steel sheets. The electrochemical behavior of silane passivating film on hot dip Al-Zn steel sheets in 50-/o NaCl solution was studied by electrochemical polarization curve and electrochemical impedance spectroscopy measurements. The corrosion resistance of silane films was compared to chromate passivating treatment on hot dip Al-Zn steel sheets by neutral salt spray tests. Results show that the corrosion potention and corrosion current density decrease and the polarization resistance increase after silane passivating treatment. The corrosion process of hot dip Al-Zn steel sheets has been inhibited by silane passivating treatment. The corrosion resistance of silane passivating treatment is prior to that of chromate passivating treatment. |
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