Volume 2, Issue 1 (Oct 2005)                   IJMSE 2005, 2(1): 9-15 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
YAHOSSEINI M.R.S., SIMCHI A., VARAHRAM N., DAVAMI P.. MODELING OF RAPID SOLIDIFICATION PROCESS IN THE GAS ATOMIZATION OF MOLTEN METALS. IJMSE 2005; 2 (1) :9-15
URL: http://ijmse.iust.ac.ir/article-1-41-en.html
MODELING OF RAPID SOLIDIFICATION PROCESS IN THE GAS ATOMIZATION OF MOLTEN METALS
YAHOSSEINI M.R.S. , SIMCHI A. , VARAHRAM N. , DAVAMI P.
Abstract:   (31931 Views)
In the present work, a model was proposed to predict the thermal history during rapid solidification (RS) of metal droplets in the gas atomization process. The classical theory of heterogeneous nucleation was based on Newtonian heat flow and enthalpy method. Solving the governing numerical equations by the finite difference method (FDM) gave up the opportunity of analyzing the temperature-time history of the droplets during cooling in the RS process. Here, cooling in the liquid state, nucleation and recalescence, segregated solidification, eutectic solidification and cooling in the solid state were considered. To verify the model, the gas atomization of Al-4.5% Cu alloy was studied and the results were compared with the Shukla's model [1]. Convincing agreement was obtained between the predicted undercoolings and the experimental results reported previously.
Keywords: Gas atomization, Rapid solidification, Modeling, Simulation, Enthalpy method
     
Type of Study: Research Paper | Subject: Ceramics
Add your comments about this article : Your username or Email:
CAPTCHA
Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2022 All Rights Reserved | Iranian Journal of Materials Science and Engineering

Designed & Developed by : Yektaweb