See also https://en.m.wikipedia.org/wiki/Corrosion_in_space

Atomic oxygen resistance is a consideration for any object in Earth orbit, and now it seems to be relevant for the moon as well. It would be interesting to know the oxygen flux and to study the Apollo hardware left on the moon for corrosion and erosion.

Interestingly enough, ozone (O3) is a concern for rubber objects on the earth's surface. Modern engineering rubbers are stabilized against ozone attack.

What horrible sulfur/oxygen species will we find around Venus?