Microsegregation in Fe-C-P Ternary Alloys Using a Phase-Field Model

被引：12

作者：

Ferreira, Alexandre Furtado ^{[1
]}

Ferreira, Leonardo de Olive ^{[1
]}

机构：

[1] UFF, Grad Program Met Engn, BR-27255125 Volta Redonda, RJ, Brazil

来源：

JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING | 2009年 / 31卷 / 03期

关键词：

phase field; solidification; ternary alloys; dendrite; simulation; DENDRITIC GROWTH; NUMERICAL-SIMULATION; SOLIDIFICATION;

D O I：

10.1590/S1678-58782009000300002

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A phase-field model is proposed for the simulation of microstructure and solute concentration during the solidification process of Fe-C-P ternary alloys. A relation between material properties and model parameters is presented. Two-dimensional computation results exhibit dendrites in Fe-C-P alloys for different phosphorus concentrations. Alterations in the phosphorus concentration appear to affect the advance speed of the solid-liquid interface. Such an alteration is due to the small diffusivity of phosphorus during the solidification process.

引用

页码：173 / 180

页数：8

共 15 条

[1]

[Anonymous], PRINCIPLES SOLIDIFIC

[2] PHASE-FIELD METHODS FOR INTERFACIAL BOUNDARIES [J].

CAGINALP, G ;

FIFE, P .

PHYSICAL REVIEW B, 1986, 33 (11) :7792-7794

[3]

FURTADO A, 2005, THESIS U FEDERAL FLU, P15

[4]

Furtado A. F., 2006, MAT RES, V9, P349

[5] Large scale simulation of dendritic growth in pure undercooled melt by phase-field model [J].

Kim, SG ;

Kim, WT ;

Lee, JS ;

Ode, M ;

Suzuki, T .

ISIJ INTERNATIONAL, 1999, 39 (04) :335-340

[6] MODELING AND NUMERICAL SIMULATIONS OF DENDRITIC CRYSTAL-GROWTH [J].

KOBAYASHI, R .

PHYSICA D, 1993, 63 (3-4) :410-423

[7] Numerical simulation of isothermal dendritic growth by phase-field model [J].

Lee, JS ;

Suzuki, T .

ISIJ INTERNATIONAL, 1999, 39 (03) :246-252

[8] The effect of the ratio of solid to liquid conductivity on the side-branching characteristics of dendrites within a phase-field model of solidification [J].

Mullis, A. M. .

COMPUTATIONAL MATERIALS SCIENCE, 2006, 38 (02) :426-431

[9]

NARSKI J, 2007, COMPUTER ME IN PRESS

[10] Phase-field model for solidification of ternary alloys [J].

Ode, M ;

Lee, JS ;

Kim, SG ;

Kim, WT ;

Suzuki, T .

ISIJ INTERNATIONAL, 2000, 40 (09) :870-876

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