Effects of physical parameters on the cell-to-dendrite transition in directional solidification

Lei Wei; Xin Lin; Meng Wang; Wei Dong Huang

doi:10.1088/1674-1056/24/7/078108

Effects of physical parameters on the cell-to-dendrite transition in directional solidification

Lei Wei, Xin Lin, Meng Wang, Wei Dong Huang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A quantitative cellular automaton model is used to study the cell-to-dendrite transition (CDT) in directional solidification. We give a detailed description of the CDT by carefully examining the influence of the physical parameters, including: the Gibbs-Thomson coefficient Γ, the solute diffusivity D_l, the solute partition coefficient k₀, and the liquidus slope m_l. It is found that most of the parameters agree with the Kurz and Fisher (KF) criterion, except for k₀. The intrinsic relations among the critical velocity V_cd, the cellular primary spacing λ_c,max, and the critical spacing λ_cd are investigated.

Original language	English
Article number	078108
Journal	Chinese Physics B
Volume	24
Issue number	7
DOIs	https://doi.org/10.1088/1674-1056/24/7/078108
State	Published - 1 Jul 2015

Keywords

cell-to-dendrite transition
cellular automaton
dendrite growth
Directional solidification

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10.1088/1674-1056/24/7/078108

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title = "Effects of physical parameters on the cell-to-dendrite transition in directional solidification",

abstract = "A quantitative cellular automaton model is used to study the cell-to-dendrite transition (CDT) in directional solidification. We give a detailed description of the CDT by carefully examining the influence of the physical parameters, including: the Gibbs-Thomson coefficient Γ, the solute diffusivity Dl, the solute partition coefficient k0, and the liquidus slope ml. It is found that most of the parameters agree with the Kurz and Fisher (KF) criterion, except for k0. The intrinsic relations among the critical velocity Vcd, the cellular primary spacing λc,max, and the critical spacing λcd are investigated.",

keywords = "cell-to-dendrite transition, cellular automaton, dendrite growth, Directional solidification",

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T1 - Effects of physical parameters on the cell-to-dendrite transition in directional solidification

AU - Wei, Lei

AU - Lin, Xin

AU - Wang, Meng

AU - Huang, Wei Dong

PY - 2015/7/1

Y1 - 2015/7/1

N2 - A quantitative cellular automaton model is used to study the cell-to-dendrite transition (CDT) in directional solidification. We give a detailed description of the CDT by carefully examining the influence of the physical parameters, including: the Gibbs-Thomson coefficient Γ, the solute diffusivity Dl, the solute partition coefficient k0, and the liquidus slope ml. It is found that most of the parameters agree with the Kurz and Fisher (KF) criterion, except for k0. The intrinsic relations among the critical velocity Vcd, the cellular primary spacing λc,max, and the critical spacing λcd are investigated.

AB - A quantitative cellular automaton model is used to study the cell-to-dendrite transition (CDT) in directional solidification. We give a detailed description of the CDT by carefully examining the influence of the physical parameters, including: the Gibbs-Thomson coefficient Γ, the solute diffusivity Dl, the solute partition coefficient k0, and the liquidus slope ml. It is found that most of the parameters agree with the Kurz and Fisher (KF) criterion, except for k0. The intrinsic relations among the critical velocity Vcd, the cellular primary spacing λc,max, and the critical spacing λcd are investigated.

KW - cell-to-dendrite transition

KW - cellular automaton

KW - dendrite growth

KW - Directional solidification

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DO - 10.1088/1674-1056/24/7/078108

M3 - 文章

AN - SCOPUS:84933574380

SN - 1674-1056

VL - 24

JO - Chinese Physics B

JF - Chinese Physics B

IS - 7

M1 - 078108

ER -

Effects of physical parameters on the cell-to-dendrite transition in directional solidification

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