خوردگی اتمسفری

Atmospheric Corrosion
Atmospheric corrosion can be defined as the corrosion of materials
exposed to air and its pollutants, rather than immersed in a liquid.
Atmospheric corrosion can further be classified into dry, damp, and
wet categories. This chapter deals only with the damp and wet cases,
which are respectively associated with corrosion in the presence of
microscopic electrolyte (or “moisture”) films and visible electrolyte layers
on the surface. The damp moisture films are created at a certain
critical humidity level (largely by the adsorption of water molecules),
while the wet films are associated with dew, ocean spray, rainwater,
and other forms of water splashing