Corrosion Corrosion Inhibitor
Inhibitors are chemical additives added in small amounts to a corrosive medium to greatly reduce the corrosion rate of the metal. They adsorb on the surface or form cover layers.
Physicochemical Mechanism of Action
Inhibitors are chemical substances added in small concentrations to a corrosive medium. They react with the corrosive substances and either adsorb on the metal surface or form a protective layer on it. This protective layer prevents the metal from coming into direct contact with the corrosive medium and stops corrosion reactions.
Metallurgical Relevance & Welding Risks
Inhibitors play an important role in preventing corrosion during welding, especially in heat-affected or humid environments. Without inhibitors, the metal can corrode quickly and compromise the life of the weld. However, wrong selection or too low amounts of inhibitors may not provide sufficient protection, which can again lead to corrosion.
Workshop Practice & Action Guidelines
When welding in corrosive environments, it is important to use the right amount and the right Corrosion Inhibitor. The exact concentration depends on the metal used and the specific corrosive medium. It is recommended to follow the manufacturer's instructions and, if needed, create a corrosion protection plan. When selecting inhibitors, pay attention to their effectiveness and compatibility with the metal.