IMPEDANCE SPECTRUM CHARACTERISTICS OF CARBON STEEL WITH COMPLEXLY MODIFIED FILM FORMED BY TITANATE AND PVC

J Chin Soc Corr Pro

1995, Vol. 15

Issue (4): 273-278 DOI:

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IMPEDANCE SPECTRUM CHARACTERISTICS OF CARBON STEEL WITH COMPLEXLY MODIFIED FILM FORMED BY TITANATE AND PVC

Song Shizhe;Wang Wei(Dept. of Materials; Tianjin University; Tianjin 300072)

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Abstract Chemical modification of metal surface is an effective method for corrosion prevention. In this work Electrochemical Impedance Spectroscopy(EIS) technique was employed to study the corrosion performance of the specimens of carbon steel (0.45% C), modified by titanate, complexly modified by titanate and PVC Polymer and non-modified as contrast in 1.0 mol/L H2SO4 and 0.5mol/L NaCl media. From the impedance spectrum charactreristics the models of equivalent circuit for these three corrosion systems were established.The research results show that the corrosion resistance of the carbon steel specimen complexly modified by titanste and polymer (PVC) is greatly improved. The anti-corrosion mechanism and the structure models of the complexly modified film were discussed.

Key words: Electrochemical Impedance Spectroscopy Compound modified film Titanate Carbon steel

Received: 25 August 1995

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Song Shizhe;Wang Wei(Dept. of Materials; Tianjin University; Tianjin 300072). IMPEDANCE SPECTRUM CHARACTERISTICS OF CARBON STEEL WITH COMPLEXLY MODIFIED FILM FORMED BY TITANATE AND PVC. J Chin Soc Corr Pro, 1995, 15(4): 273-278.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1995/V15/I4/273

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