Tribocorrosion

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Tribocorrosion is a material degradation process that results from the combined effect of corrosion (from the Latin corrodere , "to decompose, erode , gnaw") and wear . Tribocorrosion is made up of the terms tribology and corrosion. Tribology (Greek: friction theory) deals with the scientific description of friction, wear and lubrication. From a technical point of view, corrosion is the reaction of a material with its environment, which causes a measurable change in the material and can lead to an impairment of the function of a component or system. Chemical corrosion occurs on metals (DIN EN ISO 8044; formerly DIN 50900). Probably the best-known type of corrosion is rusting , i.e. the oxidation of iron . Tribocorrosion as a scientific field is relatively new, but the phenomenon has always existed in mechanical engineering or plant engineering .

Wear is a mechanical breakdown process that occurs when surfaces rub against each other. Corrosion is the name given to the influence of chemical or electrochemical reactions on the material. Corrosion accelerates wear and tear and vice versa. Fretting corrosion (which can arise from short, oscillating movements of two surfaces in contact) is part of the topic of tribocorrosion in a broader sense. Erosion corrosion is the removal of material as a result of mechanical surface removal ( erosion ) and corrosion and is therefore a further type of tribocorrosion.

literature

  • Horst Czichos, Karl-Heinz Habig: Tribocorrosion . In: Tribology Handbook . Vieweg + Teubner, 2010, ISBN 978-3-8348-0017-6 , pp. 182-192 .

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