Cladding dilution ratio
The cladding dilution ratio indicates how much of the base material has melted into the weld material. A high dilution increases corrosion protection, but too much can lead to distortion.
Physical-Chemical Mechanism of Action
The cladding dilution ratio describes the ratio of melted base material to the total volume of the weld overlay. A high dilution means more base material is mixed into the weld zone.
Metallurgical Relevance & Welding Risks
Too high a dilution can cause distortion and stress areas, which impairs the microstructure. This increases susceptibility to cracking and corrosion. Too low a dilution reduces the protective layer effect.
Workshop Practice & Action Guidelines
For optimal cladding dilution, the percentage of base material relative to the total volume should be between 20% and 40%. This ensures both corrosion protection and the mechanical properties of the weld.