Cladding dilution rate
Cladding dilution rate indicates how much the base material is diluted in the weld. Too high dilution can lead to porosity and loss of strength.
Physicochemical Mechanism of Action
The cladding dilution rate describes how much the base material is diluted in the weld. This happens through melting of the material and deformation under temperature and stress.
Metallurgical Relevance & Welding Risks
Too high a cladding dilution rate can lead to porosity because the molten material does not have enough time to fully mix. This can cause loss of strength and increased susceptibility to cracks and brittleness in the weld.
Workshop Practice & Instructions
To achieve an optimal cladding dilution rate, precisely control welding speed and the stress-to-temperature ratio. A typical target dilution is about 10 to 20% of the base material. For high-strength materials or high stresses, keep dilution low to avoid porosity.