We use molecular dynamics to simulate the rapid directional solidification of binary alloy solid-liquid interface in the non-equilibrium state. In the pulling fixed velocities, we report the temperature, density, and diffusion coefficient of the interface.
In cooling fast, controlling the velocities of solidification for the important parameter of this text¡Ait produces different changes that velocity value will be affected by atom potential energy and system temperature and density¡Athough the system is pulling a fixed velocities, that the speed of every atom of the system is all not constant .The velocity will be changed into the driving force that the solute will be separated and trapped.
In the segregation regime, we recover the exponential form of the concentration profile within the liquid phase. Solute trapping is shown to settle in progressively as V is increased or reduction and our results are in good agreement with the theoretical predictions of Aziz.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0718106-155729 |
| Date | 18 July 2006 |
| Creators | Liao, Dun-cai |
| Contributors | F.B Hsiao, Jiin-Yuh Jang, Peng-Sheng Wei, C.H Hsu |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718106-155729 |
| Rights | off_campus_withheld, Copyright information available at source archive |
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