kicad/pcb_calculator/galvanic_corrosion_help.md

This table shows the difference in electrochemical potential between various metals and alloys. Galvanic corrosion affects different metals in contact and under certain conditions.
The anode of an electrochemical pair gets oxidized and eaten away, while the cathode gets dissolved metals plated onto it but stays protected.
A positive number indicates that the row is anodic (-) and the column is cathodic (+), cold and warm coloring hues also indicate rows' potential.
EN 50310 suggests a voltage difference below 300mV. Known practices make use of a third interface metal in between the main pair(ie the ENIG surface finish).
Selected cells shown with the default system's coloring choice after a table refill.