Electrochemical response of AA7075-T651 following immersion in NaCl solution

The electrochemical behavior of AA7075-T651 following immersion in quiescent 0.1M NaCl is presented. Electrochemical impedance at various polarization intervals was determined using Fourier transformation of potentiostatically induced current transients. This allowed for rapid determination of the impedance response at fixed intervals revealing a more detailed insight into the kinetic response of the alloy when assessed with complementary analysis tools such as potentiodynamic testing. This led to a discussion regarding aspects of dissolution phenomena prior to alloy breakdown and at short immersion times.