scholarly journals Rod eutectic growth in bulk undercooled melts

2021 ◽  
Author(s):  
Junfeng Xu ◽  
Tao Zhang ◽  
Peter K. Galenko
Keyword(s):  
Eutectic Growth ◽  
Undercooled Melts

Eutectic growth in bulk undercooled melts

2005 ◽  
Vol 53 (8) ◽  
pp. 2351-2359 ◽  
Author(s):  
J LI ◽  
Y ZHOU
Keyword(s):  
Eutectic Growth ◽  
Undercooled Melts

scholarly journals Rod eutectic growth in bulk undercooled melts

2021 ◽  
Author(s):  
Junfeng Xu ◽  
Tao Zhang ◽  
Peter Galenko
Keyword(s):  
Bessel Function ◽  
Model Calculation ◽  
Analytical Model ◽  
Growth Velocity ◽  
Growth Models ◽  
High Growth ◽  
Eutectic Growth ◽  
Lamellar Eutectic ◽  
Undercooled Melt ◽  
Undercooled Melts

This article proposes an analytical model to understand the rod-growth of eutectic in the bulk undercooled melt. Based on the previous derivations of the lamellar eutectic growth models, relaxing the assumptions of small Peclet numbers, the model is derived by considering melt kinetic and thermal undercoolings. The intent of this model is to predict the transitions in eutectic pattern for conditions of the low and high growth velocity. In addition to investigation of the transition between lamellar and rod eutectic pattern, mathematical simplifications of solving Bessel function are presented as well, which is the most important priority to model calculation.

scholarly journals On the origin of anomalous eutectic growth from undercooled melts: Why re-melting is not a plausible explanation

2018 ◽  
Vol 145 ◽  
pp. 186-195 ◽  
Author(s):  
Andrew M. Mullis ◽  
Caroline R. Clopet
Keyword(s):  
Eutectic Growth ◽  
Anomalous Eutectic ◽  
Undercooled Melts

In-situ observation of eutectic growth during directional solidification of succinonitrile - (D)camphor- neopentyl glycol alloys under imposed velocity transients

2021 ◽  
Vol 203 ◽  
pp. 116469
Author(s):  
V.T. Witusiewicz ◽  
U. Hecht ◽  
J. Fernandez ◽  
J. Rodriguez ◽  
J.M. Ezquerro
Keyword(s):  
Directional Solidification ◽  
Eutectic Growth ◽  
In Situ Observation ◽  
Neopentyl Glycol

PHASE-FIELD MODELING OF ELASTIC EFFECTS IN EUTECTIC GROWTH WITH MISFIT STRESSES

2012 ◽  
Vol 04 (01) ◽  
pp. 1250024
Author(s):  
ZOHREH EBRAHIMI ◽  
JOAO REZENDEH
Keyword(s):  
Phase Field ◽  
Elastic Energy ◽  
Field Model ◽  
Phase Field Model ◽  
Solidification Process ◽  
Eutectic Growth ◽  
Point Of View ◽  
Eutectic Solidification ◽  
Elastic Model ◽  
Sharp Interface Model

Elastic interactions, arising from a difference of lattice spacing between two coherent phases in eutectic alloys with misfit stresses, can have an influence on microstructural pattern formation of eutectic colonies during solidification process. From a thermodynamic point of view the elastic energy contributes to the free energy of the phases and modifies their mutual stability. Therefore, the elastic stresses will have an effect on stability of lamellae, lamellae spacing and growth modes. In this paper, a phase-field model is employed to investigate the influence of elastic misfits in eutectic growth. The model reduces to the traditional sharp-interface model in a thin-interface limit, where the microscopic interface width is small but finite. An elastic model is designed, based on linear microelasticity theory, to incorporate the elastic energy in the phase-field model. Theoretical and numerical approaches, required to model elastic effects, are formulated and the stress distributions in eutectic solidification structures are evaluated. The two-dimensional simulations are performed for directed eutectic growth and the simulation results for different values of the misfit stresses are illustrated.

Relative roles of heat transport and interface rearrangement rates in the rapid growth of crystals in undercooled melts

1982 ◽  
Vol 30 (12) ◽  
pp. 2135-2139 ◽  
Author(s):  
S.R. Coriell ◽  
D. Turnbull
Keyword(s):  
Heat Transport ◽  
Rapid Growth ◽  
Undercooled Melts

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

Solidification in Laser Cladding of a Ti-Si Graded Coating on Pure Titanium Substrate

2013 ◽  
Vol 739 ◽  
pp. 196-200 ◽  
Author(s):  
T.M. Yue ◽  
K.J. Huang ◽  
H. Xie
Keyword(s):  
Laser Cladding ◽  
Solid Solutions ◽  
Silicon Content ◽  
Pure Titanium ◽  
Titanium Substrate ◽  
Eutectic Growth ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Graded Coating

A three-layer Ti-Si graded coating was fabricated on a commercially pure titanium substrate by laser cladding with Ti-5.8 at%Si, Ti-9.0 at%Si and Ti-13.5 at%Si mixed powders. The microstructure of the three layers comprised Ti-Si solid solutions (Ti) and the Ti5Si3 compound. As the silicon content was increased, the microstructure along the direction of deposition underwent a series of changes, including replacement of the (Ti) phase by the primary Ti5Si3 phase, and a change of the (Ti)/Ti5Si3 eutectic growth from lamellar to anomalous.

Ternary eutectic growth during directional solidification of Ag–Cu–Sb alloy

2015 ◽  
Vol 95 (4) ◽  
pp. 187-193 ◽  
Author(s):  
Wei Zhai ◽  
Baojian Wang ◽  
Liang Hu ◽  
Bingbo Wei
Keyword(s):  
Directional Solidification ◽  
Ternary Eutectic ◽  
Eutectic Growth
Sign in / Sign up

Export Citation Format

Share Document