STP1506

    Comparison of Corrosion Rate Measurement of Copper, Zinc, and C1018 Steel Using Electrochemical Frequency Modulation and Traditional Methods

    Published: Jan 2009


      Format Pages Price  
    PDF Version (2.0M) 15 $25   ADD TO CART
    Complete Source PDF (42M) 15 $75   ADD TO CART


    Abstract

    Experimental aspects of making corrosion rate measurements with the electrochemical frequency modulation technique (EFM) have been discussed. Corrosion rate and corrosion kinetic parameters can be obtained without prior knowledge of the Tafel slopes. Several cases were considered using a dummy cell designed to mimic a corrosion reaction. These approaches were then applied to copper, zinc, and carbon steel samples and the results were compared to more traditional electrochemical techniques like polarization resistance and electrochemical impedance spectroscopy. Good agreement has been observed between traditional methods and EFM.

    Keywords:

    electrochemical frequency modulation, corrosion rate measurement, impedance polarization resistance


    Author Information:

    Loveday, David
    Gamry Instruments Inc., Warminster, PA

    Rodgers, Robert
    Gamry Instruments Inc., Warminster, PA


    Paper ID: STP48748S

    Committee/Subcommittee: G01.11

    DOI: 10.1520/STP48748S


    CrossRef ASTM International is a member of CrossRef.