J. Phys. IV France 120 (2004) 599-606
Experimental validation of a predictive model for numerical simulation of thermo-metallurgical phenomena during electron beam weldingM. Carin1, Ph. Rogeon1, D. Carron1, Ph. Lemasson1, D. Couedel1, M. Dumons1, J. Costa1, R. Bertet2, J.-C. Parpillon2, P. Bocquet3 and M. Gauthier3
1 Laboratoire d'Études Thermiques Énergétique et Environnement, Université de Bretagne Sud, Lorient, France
2 Direction des Constructions Navales d'Indret, Nantes, France
3 Centre de Recherche des Matériaux du Creusot, Arcelor, Le Creusot, France
In the present work, thermal cycles measured with thermocouples embedded in specimens are employed to validate a numerical thermometallurgical model of an Electron Beam welding process. The implemented instrumentation techniques aim at reducing the perturbations induced by the sensors in place. A comparison between simulations performed on finite element code SYSWELD and the experimental measurements carried out on 16MnNiMo5 steel in the case of a partial penetration is achieved. This comparison is based on thermal cycles and also on microstructural evolutions, shapes of fusion zone (FZ) and heat affected zone (HAZ).
© EDP Sciences 2004