Abstract
The effect of solidification contraction is examined through numerical simulations of hypoeutectic Pb-Sn alloys. In addition, particular attention is given to numerically approximating the solidification of the eutectic liquid. In order to predict the inverse segregation at the cooled surface accurately, the contribution of the boundary integral is retained in the weak formulation of the solute conservation equation. This procedure eliminates the false flux, which incorrectly causes a negative segregation at the cooled surface. In the case of vertical solidification under gravity, when channels form, the shrinkage turns the flow inside the channel downwards and towards the solidifying eutectic. Without including shrinkage, the flow in an entire channel is upwards.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 881-899 |
| Number of pages | 19 |
| Journal | Modelling and Simulation in Materials Science and Engineering |
| Volume | 12 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 2004 |
ASJC Scopus subject areas
- Modeling and Simulation
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Computer Science Applications