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| Corrosion Behavior of TiO2 Film Prepared by Anodic Oxidation Method in Simulated Deep Sea Hydrothermal Region |
| ZHANG Qinjie1, YAO Wenhong2, HE Benlin1, GE Honglun1, SUN Miao1,
LIU Wei1, QU Jun1, WANG Wei1 |
1. Institute of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China;
2. Institute of Chemistry and Pharmacy, Qingdao Agricultural University, Qingdao 266109, China |
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Abstract TiO2 films were formed on metallic titanium substrate by anodic oxidation method, and its corrosion resistance was studied in simulated deep sea hydrothermal region by hydrothermal synthesis reactor. The crystal form, chemical composition, microstructure and hydrophobic properties of oxide film and products of corrosion sample were characterized by X-ray diffraction (XRD), scanning electron microscopy(SEM) and water contact angle tester, respectively. Their electrochemical properties were investigated through polarization curves. The results showed that in the simulative deep sea hydrothermal system, the non-compact TiO2 film which was produced on the surface of Ti and anodic oxidation sample could not protect the substrates well and the non-compact TiO2 film was different from the anodic oxidation TiO2 film. The corrosion potential of Ti electrode shifted 0.45 V towards negative direction and TiH2 formed on the surface of Ti after corrosion, while the corrosion potential of Ti sample processed by anodic oxidation method changed less, and no TiH2 was produced on its surface. The above results indicated that the TiO2 films formed on metallic titanium substrates by anodic oxidation method had a good corrosion resistance.
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Cite this article:
ZHANG Qinjie,YAO Wenhong,HE Benlin,GE Honglun,SUN Miao,
LIU Wei,QU Jun,WANG Wei. Corrosion Behavior of TiO2 Film Prepared by Anodic Oxidation Method in Simulated Deep Sea Hydrothermal Region. Journal of Chinese Society for Corrosion and protection, 2013, 33(1): 23-28.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2013/V33/I1/23
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