Properties of steel are determined by its microstructure



Light-optical metallographic methods and/or scanning electron microscopy allow a precise analysis of the microstructure. With our partner RWTH Aachen and HDZ Aachen, we have access to these and other technically mature examination methods (e.g. confocal microscopy, EBSD, microprobe, TEM, etc.). These methods play a particularly important role in damage analysis. These methods play a particularly important role in damage analysis, to distinguish between brittle fracture, fatigue fracture and ductile fracture.

Fatigue fracture

A fatigue fracture is a fracture that occurs under alternating load conditions. The majority of all fractures in mechanical engineering can be traced back to fatigue fractures.

Ductile fracture

Ductile fracture occurs in plastic deformable steels. Components or specimens deform plastically to fracture. Void formation, void growth and void fusion occur in the microstructure.

Brittle fracture

Brittle fracture occurs in steels with transition temperature behavior at low temperatures. It is a normal stress fracture along the crystal planes (visible as facets). The cause of the cleavage fracture is the obstruction of plastic deformation on a microscopic level.
Mikroanalytik von Stahl

Article on the topic of microanalytics

Selected references on the subject of component testing

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