diszlokációvezérelt

Diszlokációvezérelt, a Hungarian term, translates to "dislocation-driven" in English. This concept is primarily used in the field of materials science, specifically in understanding the deformation mechanisms of crystalline materials. It refers to the process where the movement and interaction of line defects, known as dislocations, are the primary cause of plastic deformation. When a material is subjected to stress beyond its elastic limit, atoms shift from their ideal lattice positions, forming these dislocations. The collective movement of these dislocations allows the material to change shape permanently without fracturing.

The behavior of dislocations is crucial for determining a material's mechanical properties, such as its strength, ductility, and toughness. Understanding dislocation-driven deformation allows engineers and scientists to predict how materials will behave under various conditions and to design alloys with specific desired properties. For example, techniques like work hardening increase a material's strength by impeding dislocation motion, thereby making it more difficult for dislocations to move and cause deformation. Conversely, processes that promote dislocation mobility can enhance ductility. The study of dislocation-driven phenomena is fundamental to metallurgy and solid-state physics.