No abstract

No abstract

No abstract

This paper presents various models (dose-response functions, DRFs) for predicting the first-year corrosion losses of structural metals for areas with marine and marine-urban (industrial) atmospheres. The prediction results for the first-year corrosion losses (C 1 pr ) calculated by the DRF from the ISO 9223 standard and by the DRF developed by us are presented. A comparative assessment of the results is given. In this work, we used experimental data on the corrosion losses of carbon steel (CS), Zn, Cu, and Al over the first year of exposure (C 1 ex ) at coastal test locations conducted within the MICAT project and the Russian programmes. The atmosphere corrosivity parameters necessary for the DRFs were considered for these locations. It was shown that the development of DRFs that provide the most reliable C 1 pr requires experimental data from one-year metal exposures with orientation of the samples in the direction facing the predominant sea wind directions.

Based on the results of 1-year tests at 12 sites in the Far Eastern region of Russia, priority doseresponse functions (DRFs) that provide the best match with experimental data on corrosion losses for carbon steel and zinc have been selected. Long-term (up to 50 years) predictions of corrosion losses of these metals in the continental territory of Russia have been given. A comparative estimation of the mass loss predictions by priority DRFs and the power-linear model has also been given.