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3D simulation of surface tension driven interdendritic convection and microsegregation during laser surface alloying

: Pirch, N.; Kreutz, E.W.

Sahm, P.R.:
Modeling of casting, welding and advanced solidification processes IX. Proceedings of the Ninth International Conference
Aachen: Shaker, 2000
ISBN: 3-8265-7230-0
pp.838-842 : Ill., Lit.
International Conference on Modeling of Casting, Welding and Advanced Solidification Processes (SIM) <9, 2000, Aachen>
Conference Paper
Fraunhofer ILT ()

The development of solute distribution at dendritic interface for one step laser surface alloying /3/ is investigated by numerical simulation. The dendritic mushy zone is approximated by columnar dendritic structure whereby the geometrical dimension and orientation within the liquid domain is derived from experimental results. Results concerning penetration depth of Marangoni flow in interdendritic zone and local solute distribution at dendrites surface are presented.