Evaluation of Interface Performance by Means of Dynamic Electrochemical Impedance Spectroscopy
Interface performance investigations of turbine rotor alloy (30Cr2MoV) in 0.01M Na2MoO4 have been performed by means of Electrochemical Impedance Spectroscopy (EIS) under step potential change conditions. A general equivalent circuit was employed to analysis the polarization behavior of that turbine rotor. It has been shown that EIS measurements under potentiodynamic conditions allow simultaneous investigation of changes in interface structure, ions transport process through the interface and electrode process kinetics on interface. The result verified the adsorption principle on metal passivation.
Y. L. Lv et al., "Evaluation of Interface Performance by Means of Dynamic Electrochemical Impedance Spectroscopy", Applied Mechanics and Materials, Vol. 624, pp. 102-105, 2014