Substitutional Solid Solution
Substitutional solid solutions form when atoms of an alloying element are inserted into the crystal lattice of the base metal. The lattice structure changes according to the atomic radii.
Physical-Chemical Mechanism of Action
In substitutional solid solutions, atoms of an alloying element are placed in the crystal lattice of the base metal. This leads to a change in the lattice structure due to differing atomic radii.
Metallurgical Relevance & Welding Risks
Substitutional solid solutions can affect the mechanical properties of steel. Uneven atomic mixing can lead to deformation interactions and potential cracking if the material is not properly forged.
Workshop Practice & Action Guidelines
When welding steels with substitutional solid solutions, it is important to ensure proper temperature and cooling time. Too fast cooling can cause glass-hard phases, while too slow cooling can lead to coarsening. Specific values vary by alloy and should be taken from material data sheets.