In this thesis, the ceramic films on TC4 titanium alloy and TA2 pure titanium are prepared by industrial frequency power supply with a realtime data collecting system of electrical current and voltage made by National Key Laboratory Superhard Materials of Jilin University. The composition and structure of the coatings are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and optical microscopy. The constant voltage tester detects the anti-point corrosion property. During the experi...