TY - GEN
T1 - Numerical simulation of freckle formation in directional solidification of binary alloys
AU - Felicelli, Sergio D.
AU - Heinrich, Juan C.
AU - Poirier, David R.
N1 - Funding Information:
This was supported by the National Aeronautics and Space Administration under Grant NAG 3-1060 and by Cray Research, Inc., and the San Diego Supercomputer Center. The authors are grateful for their sponsorship. The provision of financial support to Felicelli by the Argentine Atomic Energy Commission is also gratefully acknowledged.
Publisher Copyright:
© 1992 IEEE.
PY - 1992/12/1
Y1 - 1992/12/1
N2 - A mathematical model of solidification is presented. The model simulates the formation of segregation defects known as "freckles" during directional solidification of binary alloys. The growth of the two-phase or dendritic zone is calculated by solving the coupled equations of momentum, energy, and solute transport, as well as maintaining the thermodynamic constraints dictated by the phase diagram of the alloy. Calculations for lead-tin alloys show that the thermosolutal convection in the dendritic zone during solidification can produce heavily localized inhomogeneities in the composition of the final alloy.
AB - A mathematical model of solidification is presented. The model simulates the formation of segregation defects known as "freckles" during directional solidification of binary alloys. The growth of the two-phase or dendritic zone is calculated by solving the coupled equations of momentum, energy, and solute transport, as well as maintaining the thermodynamic constraints dictated by the phase diagram of the alloy. Calculations for lead-tin alloys show that the thermosolutal convection in the dendritic zone during solidification can produce heavily localized inhomogeneities in the composition of the final alloy.
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U2 - 10.1109/superc.1992.236660
DO - 10.1109/superc.1992.236660
M3 - Conference contribution
AN - SCOPUS:85031707199
T3 - Proceedings of the International Conference on Supercomputing
SP - 433
EP - 441
BT - Proceedings of the 1992 ACM/IEEE conference on Supercomputing, Supercomputing 1992
A2 - Werner, Robert
PB - Association for Computing Machinery
T2 - 1992 ACM/IEEE conference on Supercomputing, Supercomputing 1992
Y2 - 16 November 1992 through 20 November 1992
ER -