Estimating Corrosion Current and Tafel Constants from the Curvature of Voltammetric Curves Near the Free-Corrosion Potential V. S. Beleevskii*, K. A. Konev*, V. V. Novosadov**, and V. Yu. Vasil’ev** * DOAO ORGENERGOGAS Enterprise for Organization and Operation of Power-Mechanical Equipment in Gas Industry e-mail:
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** Moscow State Institute of Steel and Alloys (Engineering University), Leninskii pr. 4, Moscow, 119991 Russia Received October 24, 2003 Abstract — Application of calculating the electrochemical corrosion parameters from direct polarization measurements near the free-corrosion potential is discussed. The reliability of indirectly determining corrosion currents and Tafel coefficients is estimated. The error is determined as a geometric sum of the effects taking into account the root-mean-square deviations of measured currents and polarization.
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