← Glossary

Metallurgical Notch Effect of Inclusions

Inclusions in metal cause local stress concentrations and promote cracking under cyclic loading.

Physikalisch-chemischer Wirkmechanismus

Inclusions, like steel discs or scrap, in metal cause local stress concentration. This increased stress can lead to microscopic cracks.

Metallurgical Relevance & Welding Risks

Inclusions can impair the toughness and service life of the material under cyclic loading. They promote crack initiation, especially at high stress cycles or temperature changes.

Werkstattpraxis & Handlungsanweisungen

Avoid inclusions in metal by careful surface preparation and cleaning. When welding steel under high stress (e.g. at hardness > 40 HRC), careful weld inspection is essential to avoid cracks.

MetallurgieSchweißtechnik

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