Development of atmospheric corrosion model considering meteorological data and airborne sea salt

Igarashi, Takahiro  ; Komatsu, Atsushi ; Kato, Chiaki   ; Sakairi, Masatoshi*

We have developed a new atmospheric simulation model considering important environmental factors such as airborne sea salt, temperature, relative humidity, and rainfall. The developed model was verified by comparing predicted values by the simulation and measured data for the weight loss by atmospheric corrosion. In addition, atmospheric corrosion simulations under open and sheltered exposure condition were conducted, and it was confirmed that the air corrosion weight loss was strongly suppressed by the surface cleaning effect due to rainfall.