Steam Oxidation

Steam corrosion is an oxidation of metals in pure steam that forms specific oxide layers. It occurs especially at high temperatures and in power plant systems.

Physical-Chemical Mechanism of Action

Steam corrosion occurs through direct contact between metal and pure water vapor at elevated temperatures. The vapor reacts with the metals, forming specific oxide layers and can thereby degrade the metal instead of oxygen.

Metallurgical Relevance & Welding Risks

This corrosion can lead to wear and cracking, especially in components like turbine blades. It impairs the strength and service life of the material.

Workshop Practice & Action Guidelines

To avoid steam corrosion, keep metals dry during welding and processing. At high temperatures, it is important to filter out the vapor or reduce air humidity.

MetallurgieSchweißtechnik