Stacking fault
Stacking faults are lattice defects where the regular sequence of atomic layers is interrupted. They affect the work hardening and corrosion behavior of metals.
Physicochemical mechanism of action
Stacking faults arise from the random arrangement of atoms in crystal lattices. This disruption of the regular layer sequence affects the interactions between atomic layers and changes the mechanical properties of the material.
Metallurgical relevance & risks in welding
Stacking faults can occur due to insufficient melting time or too high melting temperature. They lead to increased corrosion and a lower strength level. In severe cases, this can result in cracks and failure in the material.
Workshop practice & instructions
To avoid stacking faults, ensure sufficient melting time (at least 10 seconds per millimeter of thickness) and a controlled melting temperature. Use high-quality welding materials and regularly check the quality of the weld seam by microscopy.