Turns out that while the process is sometimes informally called
electrolysis, the actual term is "galvanic corrosion."

Thanks, all, who contributed to this NVC thread.

--
Mike "Rocket J Squirrel" Elliott
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Westrailia: (Ladybug Trailer company, San Juan Capistrano, Calif.)
Bend, OR
KG6RCR