korrosionsformer
Korrosionsformer is a term used in Danish- and Norwegian-language technical literature to describe the different forms or patterns that corrosion can take in metals and alloys. The concept groups corrosion by its mechanism, appearance, and the conditions that favor it. Understanding the various korrosionsformer helps engineers select materials, design components, and apply protective measures to limit material loss and failure.
Common korrosionsformer include:
- Uniform corrosion: a relatively even, widespread dissolution of metal across a exposed surface.
- Galvanic corrosion: accelerated corrosion when two dissimilar metals are in electrical contact in an electrolyte, with
- Pitting corrosion: localized, deep pits formed by breakdown of a protective film, often in chloride environments.
- Crevice corrosion: localized attack occurring in confined spaces where solution stagnates and differential aeration exists.
- Intergranular corrosion: corrosion along grain boundaries, frequently linked to material sensitization or impurities.
- Stress corrosion cracking: crack formation and propagation due to the combination of tensile stress and a
- Erosion-corrosion: synergistic material loss from the combined action of flow-induced wear and chemical attack.
- Fretting corrosion: damage at small oscillatory contacts, driven by friction and corrosion.
- Selective or preferential corrosion: specific elements in an alloy corrode more quickly, altering composition.
Detection and mitigation are central to managing korrosionsformer. Strategies include selecting compatible materials, applying protective coatings,