| HE Ze-quan,CAO Feng-ting,WANG Tie-gang,LI Tao,GAO Guang-yao,LIU Yan-mei,FAN Qi-xiang,XU Dong.Response Mechanism of Surface Corrosion Resistance of 20SiMn Steel to Sodium Silicate Concentration in NaCl Solution[J],52(7):197-207 |
| Response Mechanism of Surface Corrosion Resistance of 20SiMn Steel to Sodium Silicate Concentration in NaCl Solution |
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| DOI：10.16490/j.cnki.issn.1001-3660.2023.07.017 |
| KeyWord:inhibitor XPS sodium silicate potential polarization curve EIS |
| Author | Institution |
| HE Ze-quan |
Tianjin Key Laboratory of High Speed Cutting and Precision Processing, Tianjin University of Technology and Education, Tianjin , China |
| CAO Feng-ting |
Tianjin Key Laboratory of High Speed Cutting and Precision Processing, Tianjin University of Technology and Education, Tianjin , China |
| WANG Tie-gang |
Tianjin Key Laboratory of High Speed Cutting and Precision Processing, Tianjin University of Technology and Education, Tianjin , China |
| LI Tao |
Research Institute of Equipment, SINOPEC Tianjin Branch, Tianjin , China |
| GAO Guang-yao |
Tianjin Key Laboratory of High Speed Cutting and Precision Processing, Tianjin University of Technology and Education, Tianjin , China |
| LIU Yan-mei |
Tianjin Key Laboratory of High Speed Cutting and Precision Processing, Tianjin University of Technology and Education, Tianjin , China |
| FAN Qi-xiang |
Tianjin Key Laboratory of High Speed Cutting and Precision Processing, Tianjin University of Technology and Education, Tianjin , China |
| XU Dong |
Yunnan Provincial Museum, Kunming , China |
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| Abstract: |
| The corrosion of steel rebar in concrete can be caused by the corrosive Cl- in marine environment, and adding inhibitors is an effective way to suppress the corrosion. As a kind of green inhibitor, sodium silicate has been widely used in protection of Fe, Zn, Mg, Al and their alloys. Nevertheless, the inhibition mechanisms of sodium silicon are controversial because of the various experimental conditions, such as the ratio of Na2O∶SiO2, concentration of sodium silicon, pH values, temperature, presence of oxygen, etc. Particularly, the studies focusing on the effect of sodium silicon concentration on corrosion resistance of steel rebar are relatively deficient. This could be probably because that as coagulants, silicate compounds are essential additives, and their solidification is of primary concern, while the effect of corrosion inhibitor on metal surfaces is often neglected. |
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