Laboratory simulation using accelerated corrosion tests of soluble salt presence and content in the atmospheric corrosion products of steel
DOI:
https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1072Keywords:
Soluble salts, Chlorides, Sulphates, Accelerated corrosion testsAbstract
In an attempt to approximate what occurs in the atmosphere, this work has established a methodology using accelerated corrosion tests to contaminate steel surfaces with similar levels of chlorides and sulphates to those founded in atmospheric natural exposure. The results show that by selecting the variable of exposure time in the salt fog cabinet, in the case of chlorides, or the volume of SO2 introduced in the KESTERNICH cabinet, in the case of sulphates, it has been possible to contaminate steel substrates with similar preestablished contents of these salts to those obtained naturally after three months of exposure in three atmospheres of different aggressivities: Cabo Vilano (marine); Aviles (industrial); and Madrid (urban).
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