STP1188

    Analysis of EIS Data for Common Corrosion Processes

    Published: Jan 1993


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    Abstract

    The software program ANALEIS with its modules, BASICS, COATFIT, PITFIT, and ANODAL can be used for the simulation and analysis of EIS data for simple corrosion systems. The advantage of ANALEIS is the optimization of the data analysis for each particular corrosion system based on the characteristics of its equivalent circuit. BASICS is used for systems that are under charge transfer or mass transport control or show an inductive loop. COATFIT addresses the case of the impedance behavior of polymer coated metals. PITFIT can be used to analyze impedance data obtained for localized corrosion of aluminum alloys. Data for anodized and sealed aluminum alloys can be analyzed with ANODAL. Examples are given for the simulation and analysis of impedance data for these corrosion systems.

    Keywords:

    electrochemical impedance spectroscopy (EIS), charge transfer control, mass transport control, polymer coatings, pitting, anodized aluminum, software, simulation, analysis


    Author Information:

    Mansfeld, F
    Professor, research assistant professor, and graduate students, Corrosion and Environmental Effects Laboratory, University of Southern California, Los Angeles, CA

    Shih, H
    Professor, research assistant professor, and graduate students, Corrosion and Environmental Effects Laboratory, University of Southern California, Los Angeles, CA

    Greene, H
    Professor, research assistant professor, and graduate students, Corrosion and Environmental Effects Laboratory, University of Southern California, Los Angeles, CA

    Tsai, CH
    Professor, research assistant professor, and graduate students, Corrosion and Environmental Effects Laboratory, University of Southern California, Los Angeles, CA


    Paper ID: STP18062S

    Committee/Subcommittee: G01.11

    DOI: 10.1520/STP18062S


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