Effects of C,N-Codoped on the Corrosion Resistance of TiO_2 Films Prepared by Plasma Surface Alloying and Thermal Oxidation Duplex Process

C,N-codoped TiO 2 films have been deposited onto stainless steel substrates using plasma surface alloying and thermal oxidation duplex process.Composition analysis shows that the films shield the substrates entirely.The TiO 2 films are anatase in structure as characterized by X-ray diffraction.The e...

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Bibliographic Details
Published in:武汉理工大学学报：材料科学英文版 2011, Vol.26 (3), p.495-498
Main Author: WANG Hefeng LI Xiuyan LIU Weiyan TANG Bin
Format: Article
Language:English
Subjects:
不锈钢基板
二氧化钛薄膜
共掺杂
制备
工艺
热氧化
等离子表面合金化
腐蚀电位
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Summary:C,N-codoped TiO 2 films have been deposited onto stainless steel substrates using plasma surface alloying and thermal oxidation duplex process.Composition analysis shows that the films shield the substrates entirely.The TiO 2 films are anatase in structure as characterized by X-ray diffraction.The electrochemical measurements show that the equilibrium corrosion potential positively shifts from-0.275 eV for bare stainless steel to-0.267 eV for C,N-codoped TiO 2 coated stainless steel,and the corrosion current density decreases from 1.3×10-5 A/cm2 to 4.1×10-6 A/cm2.The corrosion resistance obtained by electrochemistry noise also reveals that the C,N-codoped TiO 2 films provide good protection for stainless steel against corrosion in stimulated body fluid.The above results indicate that C,N-codoped TiO 2 films deposited by plasma surface alloying and thermal oxidation duplex process are effective in protecting stainless steel from corrosion.
ISSN:1000-2413
1993-0437