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Finite element analysis of directional solidification of multicomponent alloys

โœ Scribed by S. D. Felicelli; J. C. Heinrich; D. R. Poirier

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
677 KB
Volume
27
Category
Article
ISSN
0271-2091

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โœฆ Synopsis

A ยฎnite element model of dendritic solidiยฎcation of multicomponent alloys is presented that includes solutal convection and is an extension of a previously developed model for solidiยฎcation of binary alloys. The model is applied to simulation of the solidiยฎcation of ternary and quaternary Ni-based alloys. The role of solutal convection in the macrosegregation and the formation of freckles is analysed. Calculations show the effects of geometry and material properties on the convection patterns and the attendant segregation.

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