scholarly journals Lamellar eutectic growth with anisotropic interphase boundaries: Experimental study using the rotating directional solidification method

2012 ◽  
Vol 60 (6-7) ◽  
pp. 3206-3214 ◽  
Author(s):  
S. Akamatsu ◽  
S. Bottin-Rousseau ◽  
M. Şerefoğlu ◽  
G. Faivre
Keyword(s):  
Experimental Study ◽  
Directional Solidification ◽  
Eutectic Growth ◽  
Lamellar Eutectic ◽  
Interphase Boundaries

THE EFFECT OF ANISOTROPIC SURFACE TENSION ON THE LAMELLAR EUTECTIC GROWTH IN DIRECTIONAL SOLIDIFICATION

2019 ◽  
Vol 26 (07) ◽  
pp. 1850216
Author(s):  
XIAOHUA XU ◽  
MINGWEN CHEN
Keyword(s):  
Surface Tension ◽  
Directional Solidification ◽  
Triple Point ◽  
Eutectic Growth ◽  
Solute Diffusion ◽  
Interface Temperature ◽  
Lamellar Eutectic ◽  
Anisotropic Effect ◽  
Anisotropic Surface ◽  
Effect Of Surface

For the case of small interlamellar spacing relative to the solute diffusion length, the steady spatially periodic lamellar eutectic growth with the anisotropic effect of surface tension in directional solidification is studied by the approach of the interfacial wave (IFW) theory. The anisotropic surface tension is expressed as the fourfold symmetric function. We obtained a family of the uniformly valid asymptotic solutions for the steady lamellar eutectic growth and determined the corresponding interfacial patterns affected by anisotropic surface tension. The analytical solution reveals the anisotropic effect of surface tension on the interface shape of lamellar eutectic growth near the triple point. The temperature distribution at the interface shows a noticeable nonuniformity and there is a thin boundary layer for temperature and concentration near the triple point. As the anisotropic surface tension increases, the interface temperature away from the triple-point increases, whereas near the triple point the interface temperature decreases. Compared with the lamellar eutectic growth with isotropic surface tension, the anisotropic surface tension changes the position of the triple point and accelerates the growth of the lamellar eutectic. The theoretical prediction shows quantitatively consistent with recent experimental data without making any artificial adjustments to parameters.

scholarly journals Locked-lamellar eutectic growth in thin Al-Al2Cu samples: in situ directional solidification and crystal orientation analysis

2021 ◽  
pp. 126203
Author(s):  
Sabine Bottin-Rousseau ◽  
Mehdi Medjkoune ◽  
Oriane Senninger ◽  
Laurent Carroz ◽  
Richard Soucek ◽  
...  
Keyword(s):  
Directional Solidification ◽  
Crystal Orientation ◽  
Eutectic Growth ◽  
Orientation Analysis ◽  
Lamellar Eutectic

scholarly journals A theory of thin lamellar eutectic growth with anisotropic interphase boundaries

2012 ◽  
Vol 60 (6-7) ◽  
pp. 3199-3205 ◽  
Author(s):  
S. Akamatsu ◽  
S. Bottin-Rousseau ◽  
M. Şerefoğlu ◽  
G. Faivre
Keyword(s):  
Eutectic Growth ◽  
Lamellar Eutectic ◽  
Interphase Boundaries

scholarly journals Lamellar eutectic growth with anisotropic interphase boundaries

2015 ◽  
Vol 84 ◽  
pp. 012083 ◽  
Author(s):  
S Akamatsu ◽  
S Bottin-Rousseau ◽  
G Faivre ◽  
S Ghosh ◽  
M Plapp
Keyword(s):  
Eutectic Growth ◽  
Lamellar Eutectic ◽  
Interphase Boundaries

Investigations on the directional solidification of the eutectic LiF–LiBaF3

1994 ◽  
Vol 209 (4) ◽  
Author(s):  
M. Neuroth ◽  
K. Recker ◽  
F. Wallrafen
Keyword(s):  
Rayleigh Number ◽  
Directional Solidification ◽  
Critical Rayleigh Number ◽  
Chemical Properties ◽  
Eutectic Growth ◽  
Eutectic Structure ◽  
Lamellar Eutectic ◽  
Physico Chemical ◽  
Rayleigh Numbers ◽  
Eutectic Melt

AbstractImportant physico-chemical properties of the regular, lamellar eutectic LiF–LiBaFEutectic and off-eutectic LiF–LiBaFThe high melt viscosity leads to low Rayleigh numbers, Ra, which is orders of magnitude lower than the critical Rayleigh number, RaDuring eutectic growth theFurthermore the reason for the observed deviations of the volume fractions in the eutectic structure from exact eutectic melt compositions was studied. The enrichment of the LiBaFThe directional solidification of hypo- and hyper-eutectic melts indicate that the LiF (phase with higher undercooling) acts as nucleus for LiBaF

Initial dynamics of irregular eutectic growth under directional solidification

2021 ◽  
pp. 130464
Author(s):  
Lili Tian ◽  
Yinli Peng ◽  
Xing He ◽  
Yang Bai ◽  
Xiaowei Lei ◽  
...  
Keyword(s):  
Directional Solidification ◽  
Eutectic Growth
Sign in / Sign up

Export Citation Format

Share Document