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Localized Plastic Deformation Zone
The local plastic deformation zone is a limited area in the material where the elastic limit is exceeded and permanent deformation occurs. This often happens at notches or crack tips under load.
Physicochemical mechanism of action
The local plastic deformation zone forms when the material's elastic limit is exceeded. In this area, atoms are pulled and displaced, leading to permanent shape changes.
Metallurgical relevance & risks in welding
The plastic deformation zone can cause increased hardness and reduced toughness in the material. This can lead to cracks or buckling under load and reduce the service life of components.
Workshop practice & instructions
To minimize the plastic deformation zone, avoid high stresses during welding. This can be achieved by careful material preparation and using appropriate welding processes.
MetallurgieSchweißtechnik