Probe techniques for localized corrosion inhibitor research

4 Probe techniques for localized corrosion inhibitor research 

Yasakau et a/. studied the mechanism of corrosion protection of aluminum alloy 2024-T3 by cerium and lanthanum inhibitors in chloride media using SKPFM, 

The local electrochemical impedance spectroscopy (LEIS) is another scanning probe technique that can map the ac impedance distribution over an electrode surface. In LEIS a sinusoidal voltage perturbation between the working and reference electrode is maintained by driving an ac current between the working 

Each scanning probe technique has its advantages and limitations, for this reason, different techniques are applied in various combinations. For instance, traditional optical microscope, SEM and EDS are often applied with scanning probe techniques to provide topographical and chemical information that is often critical for corrosion inhibitor research. Analysis of electroctrochemically active sites can be carried out using SEM, EDS, AFM and in situ confocal laser scamiing microscopy. 

This implies that successful imaging of a natural pit initiation by scanning probes could depend upon Tuck . 

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