Nonlinear Buoyant Convection in Mushy Layers during Alloy Solidification

2007 ◽  
Vol 11 (3) ◽  
pp. 291-303 ◽  
Author(s):  
B. S. Okhuysen ◽  
D. N. Riahi
Keyword(s):  
Alloy Solidification ◽  
Buoyant Convection ◽  
Mushy Layers

Finite volume and spectral methods applied to Pb-30%TI alloy solidification

2001 ◽  
Vol 11 (PR6) ◽  
pp. Pr6-151-Pr6-159 ◽  
Author(s):  
R. Guérin ◽  
M. El Ganaoui ◽  
P. Haldenwang ◽  
P. Bontoux
Keyword(s):  
Finite Volume ◽  
Spectral Methods ◽  
Ti Alloy ◽  
Alloy Solidification

EFFECTS OF P CONTENT ON (LAVES+γ) EUTECTIC REACTION DURING INCONEL 706 ALLOY SOLIDIFICATION

2010 ◽  
Vol 46 (7) ◽  
pp. 873-878 ◽  
Author(s):  
Xin XIN ◽  
Aihua HUANG ◽  
Feng QI ◽  
Weihong ZHANG ◽  
Fang LIU ◽  
...  
Keyword(s):  
Eutectic Reaction ◽  
Alloy Solidification ◽  
P Content

scholarly journals Colloidal mushy layers

2021 ◽  
Vol 914 ◽  
Author(s):  
M. Grae Worster ◽  
S.S.L. Peppin ◽  
J.S. Wettlaufer
Keyword(s):  
Mushy Layers

Abstract

Binary alloy solidification and freckle formation: Effect of shrinkage induced flow on solutal instability and macro-segregation

2021 ◽  
Vol 33 (3) ◽  
pp. 037108
Author(s):  
Aniket D. Monde ◽  
Amit Shrivastava ◽  
Amman Jakhar ◽  
Prodyut R. Chakraborty
Keyword(s):  
Binary Alloy ◽  
Alloy Solidification ◽  
Freckle Formation ◽  
Induced Flow

Ultrafast Imaging of Rapid Alloy Solidification in Al-Cu Thin Films

2012 ◽  
Vol 18 (S2) ◽  
pp. 602-603 ◽  
Author(s):  
J.T. McKeown ◽  
T. LaGrange ◽  
B.W. Reed ◽  
G.H. Campbell ◽  
A. Kulovits ◽  
...  
Keyword(s):  
Thin Films ◽  
Alloy Solidification ◽  
Ultrafast Imaging

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

Interactions between steady and oscillatory convection in mushy layers

2010 ◽  
Vol 645 ◽  
pp. 411-434 ◽  
Author(s):  
PETER GUBA ◽  
M. GRAE WORSTER
Keyword(s):  
Standing Waves ◽  
Mushy Layer ◽  
Two Dimensional ◽  
Oscillatory Convection ◽  
Mushy Layers ◽  
Theoretical Predictions ◽  
Convection Patterns ◽  
The Stability ◽  
Nonlinear Solutions ◽  
Steady Convection

We study nonlinear, two-dimensional convection in a mushy layer during solidification of a binary mixture. We consider a particular limit in which the onset of oscillatory convection just precedes the onset of steady overturning convection, at a prescribed aspect ratio of convection patterns. This asymptotic limit allows us to determine nonlinear solutions analytically. The results provide a complete description of the stability of and transitions between steady and oscillatory convection as functions of the Rayleigh number and the compositional ratio. Of particular focus are the effects of the basic-state asymmetries and non-uniformity in the permeability of the mushy layer, which give rise to abrupt (hysteretic) transitions in the system. We find that the transition between travelling and standing waves, as well as that between standing waves and steady convection, can be hysteretic. The relevance of our theoretical predictions to recent experiments on directionally solidifying mushy layers is also discussed.

Sign in / Sign up

Export Citation Format

Share Document