Prediction of first-year corrosion losses of copper and aluminum in continental regions

Abstract

The dose-response functions (DRFs) developed for the prediction of first-year corrosion losses of copper and aluminum (K1) in continental regions are presented. The development of DRFs is based on the stablished dependences of the corrosion losses of these metals on SO2 concentration: K = f([SO2]). Experimental data on the atmosphere corrosivity and corrosion losses of the metals in a one-year exposure period according to ISOCORRAG and UN/ECE international programs, the Russian program, and МICAT project were used. Comparisons of the predicted K1 values obtained by three different DRFs with experimental K1 values are presented. These DRFs are analyzed in terms of the coefficients they contain.

Keywords

• copper
• aluminum
• modelling
• atmospheric corrosion