Abstract
Assumptions associated with transport processes in columnar dendritic arm spacings in the solid-liquid mushy region of a binary alloy solidification are discussed. Using conservation variables and a Landau transformation, an equation governing the mass diffusion in a coarsening arm space (microsegregation) is presented. A fixed grid, fixed time step numerical solution suitable for the analysis of systems in which the solute density in the arm spacing changes (an open system) is developed. The model and numerical solutions are tested on comparison with experiments. Discussions and numerical experiments related to the analysis of open systems are undertaken.
| Original language | English (US) |
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| Title of host publication | Micro/Macro Scale Phenomena in Solidification |
| Publisher | Publ by ASME |
| Pages | 35-42 |
| Number of pages | 8 |
| Volume | 218 |
| ISBN (Print) | 0791810607 |
| State | Published - Dec 1 1992 |
| Event | Winter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA Duration: Nov 8 1992 → Nov 13 1992 |
Other
| Other | Winter Annual Meeting of the American Society of Mechanical Engineers |
|---|---|
| City | Anaheim, CA, USA |
| Period | 11/8/92 → 11/13/92 |