Microstructure and Corrosion Resistance of TiO₂ Films on 316L Using Hydrothermal Method

Abstract:

TiO₂ films were prepared on glass and 316L stainless steel (316L SS) using hydrothermal method. The microstructures of the films were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). It indicated that the films crystallized as anatase phase with mirror-like surface morphology. The optical properties of the TiO₂ film were studied by Ultraviolet Visible Spectroscopy (UV-Vis). The results showed that the film was transparent in visible range. The cut-off point of the sample was red-shifted after annealed treatment. The corrosion resistance of the film was evaluated by using Tafel polarization curve in simulated body solution. The corrosion current density was decreased from 8.556 μA/cm² (316L SS) to 1.421 μA/cm² (TiO₂ film/316L SS). While, the corrosion potential was increased from-0.402 V (316L SS) to-0.325 V (TiO₂ film/316L SS). The 316L SS with TiO₂ film has better corrosion resistance.

• Periodical: Applied Mechanics and Materials (Volumes 670-671)
• Pages: 271-274
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.670-671.271
• Online since: October 2014
• Authors: Jun Wang, Long Huang
• Keywords: Corrosion Resistance, Hydrothermal Method, Microstructure, TiO₂ Film

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