Cladding Dilution Coefficient
A welding-related measure of the mixing between the base material and the applied filler material during fusion welding. A controlled value prevents the dilution of the corrosion-resistant cladding.
In cladding, dilution indicates how much base material mixes with the filler metal in the weld pool. If the value is too high, the cladding layer is 'diluted' with the base material. This degrades the required properties of the cladding, especially corrosion protection or wear resistance, because alloying elements from the filler metal are depleted. You mainly control dilution through heat input and welding speed. If you melt too much base material, the layer becomes too diluted. Then you need to adjust the parameters, for example by using a weaving motion or applying more layers, so that the final layer retains its composition.