Inconel Dissimilar Metal Welding
Inconel dissimilar welding joins nickel-based alloys with steels, which leads to residual stresses due to different thermal expansion coefficients. Special filler materials compensate for these stresses.
Physico-chemical mechanism of action
Inconel dissimilar welding combines a nickel-based alloy with a conventional steel. These alloys have different thermal expansion coefficients, which leads to stresses when they cool down. Special filler materials are used to compensate for these stresses and create a stable joint.
Metallurgical relevance & welding risks
The different thermal expansion coefficients can lead to residual stresses that can cause cracks or failure of the weld. The use of special filler materials is crucial to compensate for these stresses and produce a sound joint.
Workshop practice & instructions
When welding Inconel dissimilar joints, it is important to use the correct filler materials to compensate for residual stresses. The weld should be cooled slowly to achieve a stable joint. Temperatures should be precisely controlled to ensure that no cracks or failures occur.