Corrosion is a major durability problem for steel structures

and atmospheric corrosion is the most common corrosion that causes the greatest loss. Over the years

researchers have studied the atmospheric corrosion process of various kinds of steel through in-situ test of in-service steel structures

atmospheric exposure test

accelerated corrosion test

electrochemical test

and other methods. The corrosion mechanism of steel in different environments were analyzed and corrosion models were put forward. In this paper

the research status and progress of atmospheric corrosion models of structural steel are discussed from three aspects: corrosion mechanism of steel in typical corrosive atmosphere

time-dependent model of corrosion loss of steel

and pitting depth development and distribution of steel surface.