Abstract
The morphological linear stability and nonlinear stability of solid-liquid interface of Al-Zn dilute binary alloy were investigated by thermodynamics method. Different stable regions between linear-stability and nonlinear stability of solid-liquid interface were approached, which was calculated by the thermo-dynamic method and the linear binary parameter method, respectively. Interface morphology evolution after solid-liquid interface instability was analyzed, and subcritical bifurcation range of solid-liquid interface was presented. The results reveal that the calculated results by coupling with thermo-dynamics method are more well in agreement with the experimental ones. Instable region calculated by the method is more than that by linear binary parameters, especially under linear-stability.
| Original language | English |
|---|---|
| Pages (from-to) | 278-281 |
| Number of pages | 4 |
| Journal | Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys |
| Volume | 31 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2011 |
Keywords
- Binary alloy
- Morphological stability
- Sub-critical bifurcation
- Thermodynamics method
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