Lattice Parameter
The lattice constant is the dimension of the edges of a crystal lattice, determined by atomic radii and their arrangement.
Physical-chemical mechanism of action
The lattice constant indicates how far an atom in a crystal is from its nearest neighbor. It depends on the chemical composition and temperature of the material.
Metallurgical relevance & risks in welding
A non-uniform lattice constant can lead to stresses in the material, which can cause cracks or distortion during welding. With different filler materials, the lattice constant changes, affecting the microstructure and mechanical properties.
Workshop practice & instructions
When welding, it is important that the material exhibits uniform stresses. This can be achieved through controlled cooling and correct welding parameters. With filler materials, pay attention to the specific lattice constant and adjust processes accordingly.