Question

How to speed up corrosion of magnesium?

Answer 1

Actually would like to simulate a crushed magnesium rod, that spend some time in nuclear reactor. So I would expect just some thin corrosion (oxidation) layer, basically I need to get right colour.

Answer 2

However, magnesium does corrode very quickly. Unlike the reddish brown rusted surface of iron corrosion, magnesium corrosion is actually more of dull gray film.