Modeling of Microstructures in Dissimilar Copper/Stainless Steel Electron Beam Welds
Veröffentlicht in 2008
In the case of electron beam welding of copper with stainless steel, two principal cases of welding pool morphology are possible: a droplet-like microstructure where the electron beam deviates to the copper side due to the thermoelectric effect, so the volume of molten copper is much bigger than steel, and an emulsion-like microstructure, volumes of melted materials are closely equal.
Reproducing real geometries of these microstructures and using data from the properties of the Fe/Cu-system, we have created heat transfer/diffusion coupled models to demonstrate development of concentration fields during solidification of the melted zone.
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