NiCrAlY coating corrosion rate vs. temperature

If you look at the sulfidation, the hot corrosion — Pourbaix diagrams explain the thermodynamics of corrosion, but the real problem in corrosion is trying to understand the kinetics, how fast it occurs. This is for the high-temperature corrosion of an overlay coating versus temperature for a nickel chrome aluminum yttrium — we call it the NiCrAlY alloy. A lot of your turbine blades in jet engines will have this corrosion-resistant coating on the surface, because it's better than just straight nickel. It's nickel chrome aluminum and yttrium.