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    STP1000

    Electrochemical Methods for Laboratory Corrosion Testing

    Published: 01 January 1990


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    Abstract

    Electrochemical methods are extremely useful for the study of aqueous corrosion phenomena, particularly when utilized in conjunction with other techniques. Basic electrochemical principles are reviewed and examples given of application of a variety of electrochemical techniques to corrosion. Standards of ASTM Subcommittee Gl.ll on Electrochemical Measurements in Corrosion Testing describe some useful experimental guidelines for the application of many of the techniques discussed.

    Keywords:

    anode, anodic polarization, auxiliary electrode, breakdown potential, cathode, cathodic polarization, corrosion, corrosion potential, corrosion rate, current density, diffusion limited current density, electrode, electrode potential, electrochemical cell, equilibrium cell, exchange current density, galvanic current, galvanic couple, galvanic current density, galvanostatic, impedance, intergranular corrosion, localized corrosion, mixed potential, open circuit potential, overvoltage, oxidation, passivation, passive, pitting, polarization, polarization resistance, potentiodynamic, potentiostat, reduction, stress corrosion cracking, Tafel slope, uniform corrosion, working electrode


    Author Information:

    Scully, JR
    Center for Electrochemical Sciences and Engineering, Department of Materials Science, University of Virginia, Charlottesville, VA


    Committee/Subcommittee: G01.11

    DOI: 10.1520/STP39201S