Long-term forecast of corrosion mass losses of technically important metals in various world regions using a power function

Highlights: • Long-term forecasts of corrosion mass losses of metals in atmosphere are presented. • Three models for the long-term forecast are given. • The forecasts are given for test locations within the ISO CORRAG program. • A comparative estimate of the forecasts is given. - Abstract: An analysis of the results of corrosion tests on flat and helix specimens made of technically important metals carried out within the ISO CORRAG program is given. Stochastic relationships between coefficient n in the power function, which characterizes the protective properties of the corrosion products, and the limiting corrosion rate α, with the corrosivity of each type of atmosphere were found. A forecast of corrosion losses for a period of up to 50 years was given using the linear function in the stationary stage, a power function, and limiting corrosion rate values α. The reliability of the forecasts was estimated