First and last measurements obtained from an electrochemical test on a steel substrate covered by ALUZINC, itself covered by a ppHMDSO film. The sample was scratched down to the ALUZINC layer, immersed in a corrosive solution and scanned at regular intervals at incremental voltages.

These images of a zone on the sample (160 µm x 164 µm x 21 µm) show how a section of the scratch filled in over time.

The nine measured surfaces are assembled into a 4D series of surfaces. Surface evolution can then be visualized in an animated 3D view and can be exported as an AVI movie clip.

These images of a zone on the sample (160 µm x 164 µm x 21 µm) show how a section of the scratch filled in over time.

3D Surface parameters can be used to characterize surface change. Statistics can be made from parameter values and a specific parameter can be used to draw a control chart.

Available studies include Statistical parameters (mean, std dev, min/max, quartiles, deciles...), Control Chart (with upper/lower limits, Yield parameter, +/- 1, 2 or 3 sigma limits), Box plot, Scatter plot (to study correlation between two parameters).