Structure and texture simulations in fusion welding processes – comparison with experimental data

Three-dimensional modeling of solidification grain structures generated by laser powder bed fusion

“…2.3). Because detailed description of the CA method is already made available in the literature [53,54,65,67,69,70,66], only its principles are reminded in the present section.…”

“…This procedure was initially implemented [67] but found inefficient for 3D simulations. Instead, the procedure developed for welding simulations is used [65,66].…”

“…The cellular automaton method (CA) initially proposed in the early 90's [52,53,54] is most frequently used to deal with the simulation of the dendritic grain structure in AMed metallic alloys [22,55,56,57,58,59,60,61,62,63,64]. Initially developed for casting, it was extended to welding processing [65,66] and benefited from optimized methodologies, including finite element (FE) mesh adaptation and parallel algorithms [67,68], hence demonstrating the possibility to reproduce columnar grain structures and its associated texture in materials solidifying with cubic crystallography, i.e. with preferred growth direction of dendrites given by ⟨100⟩ crystallographic directions.…”

Three-Dimensional Modeling of Solidification Grain Structures Generated by Laser Powder Bed Fusion

“…2.3). Because detailed description of the CA method is already made available in the literature [53,54,65,67,69,70,66], only its principles are reminded in the present section.…”

“…The cellular automaton method (CA) initially proposed in the early 90's [52,53,54] is most frequently used to deal with the simulation of the dendritic grain structure in AMed metallic alloys [22,55,56,57,58,59,60,61,62,63,64]. Initially developed for casting, it was extended to welding processing [65,66] and benefited from optimized methodologies, including finite element (FE) mesh adaptation and parallel algorithms [67,68], hence demonstrating the possibility to reproduce columnar grain structures and its associated texture in materials solidifying with cubic crystallography, i.e. with preferred growth direction of dendrites given by ⟨100⟩ crystallographic directions.…”