Lattice Distortion
Lattice distortion is a local disturbance of the crystal lattice caused by foreign atoms or defects, which deforms the material and impairs its mechanical properties.
Physicochemical mechanism of action
Lattice distortion occurs when foreign atoms are introduced into the crystal lattice. These atoms have a different size or shape than the natural atomic structure, causing local deformations.
Metallurgical relevance & welding risks
Lattice distortion can occur during welding due to the introduction of oxygen and other foreign atoms. It impairs the mechanical properties of the material, such as strength and toughness, and leads to increased susceptibility to cracking and wear.
Workshop practice & instructions
To minimize lattice distortion, ensure a clean welding environment with low oxygen content. Use high-quality shielding gases like argon or helium and carefully control the temperature and time of cooling.