Sharp interface numerical simulation of directional solidification of binary alloy in the presence of a ceramic particle

2008 ◽  
Vol 51 (1-2) ◽  
pp. 155-168 ◽  
Author(s):  
Yi Yang ◽  
J.W. Garvin ◽  
H.S. Udaykumar
Keyword(s):  
Numerical Simulation ◽  
Directional Solidification ◽  
Binary Alloy ◽  
Ceramic Particle ◽  
Sharp Interface

scholarly journals Numerical simulation of microstructure evolution during directional solidification of Ti-45at.%Al alloy

2008 ◽  
Vol 57 (5) ◽  
pp. 3048
Author(s):  
Wang Kuang-Fei ◽  
Guo Jing-Jie ◽  
Mi Guo-Fa ◽  
Li Bang-Sheng ◽  
Fu Heng-Zhi
Keyword(s):  
Numerical Simulation ◽  
Directional Solidification ◽  
Microstructure Evolution ◽  
Al Alloy

Numerical Simulation on the Suppression of Crucible Wall Constraint in Directional Solidification Furnace

Silicon ◽  
2018 ◽  
Vol 11 (2) ◽  
pp. 775-780 ◽  
Author(s):  
S. Sanmugavel ◽  
M. Srinivasan ◽  
K. Aravinth ◽  
P. Ramasamy
Keyword(s):  
Numerical Simulation ◽  
Directional Solidification ◽  
Crucible Wall ◽  
Solidification Furnace

Optimization of Bulk Hgcdte Growth in a Directional Solidification Furnace by Numerical Simulation

1995 ◽  
Vol 398 ◽  
Author(s):  
A.V. Bune ◽  
D.C. Gillies ◽  
S.L. Lehoczky
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Finite Element ◽  
Crystal Growth ◽  
Numerical Model ◽  
Directional Solidification ◽  
Growth Conditions ◽  
Finite Element Code ◽  
Interface Shape ◽  
Solidification Furnace

ABSTRACTA numerical model of heat transfer by combined conduction, radiation and convection was developed using the FIDAP finite element code for NASA's Advanced Automated Directional Solidification Furnace (AADSF). The prediction of the temperature gradient in an ampoule with HgCdTe is a necessity for the evaluation of whether or not the temperature set points for furnace heaters and the details of cartridge design ensure optimal crystal growth conditions for this material and size of crystal. A prediction of crystal/melt interface shape and the flow patterns in HgCdTe are available using a separate complementary model.

scholarly journals Directional solidification of a binary alloy into a cellular convective flow: localized morphologies

1999 ◽  
Vol 395 ◽  
pp. 253-270 ◽  
Author(s):  
Y.-J. CHEN ◽  
S. H. DAVIS
Keyword(s):  
Directional Solidification ◽  
Binary Alloy ◽  
Temporal Dynamics ◽  
Three Dimensional ◽  
Multiple Scale ◽  
Solute Diffusion ◽  
Two Dimensional ◽  
Morphological Instability ◽  
Flow Strength ◽  
Weakly Nonlinear

A steady, two-dimensional cellular convection modifies the morphological instability of a binary alloy that undergoes directional solidification. When the convection wavelength is far longer than that of the morphological cells, the behaviour of the moving front is described by a slow, spatial–temporal dynamics obtained through a multiple-scale analysis. The resulting system has a parametric-excitation structure in space, with complex parameters characterizing the interactions between flow, solute diffusion, and rejection. The convection in general stabilizes two-dimensional disturbances, but destabilizes three-dimensional disturbances. When the flow is weak, the morphological instability is incommensurate with the flow wavelength, but as the flow gets stronger, the instability becomes quantized and forced to fit into the flow box. At large flow strength the instability is localized, confined in narrow envelopes. In this case the solutions are discrete eigenstates in an unbounded space. Their stability boundaries and asymptotics are obtained by a WKB analysis. The weakly nonlinear interaction is delivered through the Lyapunov–Schmidt method.

scholarly journals Phase-field simulation of competitive growth of grains in a binary alloy during directional solidification

China Foundry ◽  
2018 ◽  
Vol 15 (5) ◽  
pp. 333-342 ◽  
Author(s):  
Li Feng ◽  
Ya-long Gao ◽  
Ni-ni Lu ◽  
Chang-sheng Zhu ◽  
Guo-sheng An ◽  
...  
Keyword(s):  
Directional Solidification ◽  
Binary Alloy ◽  
Phase Field ◽  
Competitive Growth ◽  
Phase Field Simulation ◽  
Field Simulation
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