Linear Sweep Voltammetry

Purpose: quick coating evaluation (pitting potential, current density at anodic potentials).

Figure 1. Example of linear sweep voltammetry done for uncoated (red) and coated (blue) metal substrate.

Electrochemical Impedance Spectroscopy

Purpose: coating stability evaluation

Figure 2. Example of electrochemical impedance spectroscopy, where the coating was measured at the start (red) and end (blue) of a 24-hour immersion test to assess its stability

Corrosion Potential

Purpose: evaluation of coating/material stability and electrochemical activity

Figure 3. Example of corrosion potential measurement for a coated metal substrate.