| LIU Xin-hua,SUN Cai-yun,WANG Qing-hui,HAN Jie,TONG Xin-jia.Development of Seawater Inhibitors without Phosphor[J],42(1):94-97 |
| Development of Seawater Inhibitors without Phosphor |
| Received:October 29, 2012 Revised:November 19, 2012 |
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| DOI： |
| KeyWord:stungstate non-phosphor corrosion inhibitor sea water corrosion inhibition property |
| Author | Institution |
| LIU Xin-hua |
College of Light Industry, Hebei United University, Tangshan , China |
| SUN Cai-yun |
College of Light Industry, Hebei United University, Tangshan , China |
| WANG Qing-hui |
College of Light Industry, Hebei United University, Tangshan , China |
| HAN Jie |
College of Light Industry, Hebei United University, Tangshan , China |
| TONG Xin-jia |
College of Light Industry, Hebei United University, Tangshan , China |
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| Abstract: |
| A quaternary corrosion inhibitor formula without phosphorus, which has a good synergistic effect was conformed in natural seawater through measuring corrosion rate and corrosion rate with the weight loss method. Corrosion mechanism of the compound corrosion inhibitors was studied through the electrochemical polarization, SEM and EDS analysis method. The results indicate that the inhibition efficiency is over 90 % in the proportion of 40 mg / L stungstate,40 mg / L sodium gluconate,4 mg / L Zn2+and 30 mg / L TEA. The compound inhibitor is an anodic corrosion inhibitor which formes a compact film on carbon steel surface, the main composition of the film is iron oxide with some W and Zn. |
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