Ductile fracture
A ductile fracture occurs due to plastic deformation and is characterized by a pronounced dimple structure on the fracture surface. This is a typical failure mode in metals under high stress levels.
Physical-Chemical Mechanism of Action
A ductile fracture occurs when a material is plastically deformed under high stress levels. The atomic structure smooths out and forms a dimple structure on the fracture surface.
Metallurgical Relevance & Risks in Welding
A ductile fracture can occur due to incorrect welding parameters or excessive stress levels. It leads to reduced toughness and can affect the service life of components.
Workshop Practice & Instructions
To avoid ductile fractures, pay attention to correct welding parameters. Use an appropriate welding process and control stress levels. For steels, sufficient cooling is important to stabilize the microstructure.