Chromium-molybdenum low-alloy steels are used to make heat exchangers and pressure vessels. These steels have very good mechanical properties, have less resistance to corrosion and oxidation than stainless steels, so it is important to improve their corrosion behavior and their tribocorrosion. In this study, the effect of the formation of Cu-Ni-Fe alloy on the corrosion and tribocorrosion behavior of chromium-molybdenum steel