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| Preparation and Corrosion Resistance of 1-Tetradecylphosphonic Acid SAMs on 430 Stainless Steel |
| WANG Hairen, CHEN Feng, QU Jun'e, NIE Dejian |
| Faculty of Materials Science and Engineering, Hubei University, Wuhan 430062, China |
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Abstract A kind of 1-tetradecylphosphonic acid (TDPA) SAMs was formed on 430 stainless steel by the immersion method. The adsorption behavior and pitting corrosion inhibition performance were investigated by FT-IR spectrum, electrokinetic potential scanning, contact angle measurement and X-ray photoelectron spectroscopy (XPS) observations. The results showed that after modification by TDPA molecules, the stainless steel surface changed from hydrophilicity to hydrophobicity, and the highest pitting potential was obtained after 6 h self-assembling. The oxidation could enhanced corrosion inhibition of 430SS，and the TDPA SAMs also could form on the oxidized 430SS.
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