Atmospheric Corrosion Protection
Atmospheric corrosion protection prevents material damage from weather influences. This is achieved through barrier coatings, drainage, and proper material selection.
Physical-Chemical Mechanism of Action
Atmospheric corrosion occurs from chemical reactions between the material and air humidity or other gases. Oxidation of metals forms rust, which damages the material.
Metallurgical Relevance & Risks in Welding
Incorrect coatings or lack of drainage can accelerate corrosion. This leads to loss of strength and possibly cracks in the material. Barrier coatings must be robust to maintain an air barrier.
Workshop Practice & Action Instructions
• Use corrosion-resistant materials like steel with increased chromium content or nickel alloys.
• Apply barrier coatings like paints, stainless steel layers, or galvanizing.
• Ensure drainage of all components to allow water runoff and prevent corrosion.