Corrosion Creep
Creep under corrosion load is time-dependent plastic deformation of metals under constant tensile stress in a corrosive environment. It combines creep with chemical material attack.
Physical-Chemical Mechanism of Action
Creep under corrosive load occurs when metals are in a corrosive medium under constant mechanical tensile stress. The combination of chemical attack and mechanical load leads to long-term plastic deformation of the material.
Metallurgical Relevance & Risks in Welding
This process can lead to long-term deterioration of component strength and to the formation of cracks. In the workshop, this can occur especially with poor weld joints or in humid environments, endangering the service life of components.
Workshop Practice & Action Guidelines
To avoid creep under corrosive load, it is important to ensure a clean weld zone and to exclude corrosive media. Use high-quality welding materials and perform careful post-weld treatment. In humid environments, special corrosion control is required.