  We describe the development of a millifluidic based scanning droplet cell
platform for rapid and automated corrosion. This system allows for measurement
of corrosion properties (e.g., open circuit potential, corrosion current
through Tafel and linear polarization resistance measurements, and cyclic
voltammograms) on a localized section of a planar sample. Our system is highly
automated and flexible, allowing for scripted changing and mixing of solutions
and point-to-point motion on the sample. We have also created an automated data
analysis pipeline. Here we demonstrate this tool by corroding a plate of
electroplated Zn$_{85}$Ni$_{15}$ alloy over a range of pH values and correlate
our results with XPS measurements and literature.
