Thermo-metallurgical simulation and performance evaluation of hybrid laser arc welding of chromium-molybdenum steel

The phase constitution of the joint had a significant effect on the mechanical properties of the welded components. In this study, a thermo-metallurgical finite element model was developed for the hybrid laser arc welding process to predict the phase field and melt-pool dimensions of double-sided butt-welded chromium-molybdenum steel plates. The good agreement of the predicted phase fields and melt-pool dimensions with experimental results...