Simulación numérica de la descomposición espinodal en sistemas de aleación hipotéticos A-B y A-B-C

E. O. Avila-Dávila; S. Lezama-Álvarez; M. L. Saucedo-Muñóz; V. M. López-Hirata; J. L. González-Velázquez; M. Pérez-Labra

doi:10.3989/revmetalm.1168

Simulación numérica de la descomposición espinodal en sistemas de aleación hipotéticos A-B y A-B-C

Translated title of the contribution: Numerical simulation of the spinodal decomposition in hypothetical A-B and A-B-C alloy systems

E. O. Avila-Dávila, S. Lezama-Álvarez, M. L. Saucedo-Muñóz, V. M. López-Hirata, J. L. González-Velázquez, M. Pérez-Labra

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

3 Scopus citations

Abstract

The phase field method is based on the thermodynamics, mechanism and kinetic of the precipitation reactions in alloys. This method can be used to simulate numerically the microstructural evolution in an alloy system, and constitutes a powerful tool to predict the phase transformations. The phase field method solves the nonlinear Cahn-Hilliard partial differential equation and offers computational advantages. The effect of the parameters into this equation on the morphology and kinetics of the phase separation in binary A-B and ternary A-B-C hypothetical alloy systems with a miscibility gap was analyzed. The results showed that the atomic mobility modifies the phase separation kinetics. In contrast, elastic-strain energy is an important parameter that affects the morphology of phases causing changes from spheres to cuboids or plates with preferential crystallographic alignment.

Translated title of the contribution	Numerical simulation of the spinodal decomposition in hypothetical A-B and A-B-C alloy systems
Original language	Spanish
Pages (from-to)	223-236
Number of pages	14
Journal	Revista de Metalurgia (Madrid)
Volume	48
Issue number	3
DOIs	https://doi.org/10.3989/revmetalm.1168
State	Published - May 2012
Externally published	Yes

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title = "Simulaci{\'o}n num{\'e}rica de la descomposici{\'o}n espinodal en sistemas de aleaci{\'o}n hipot{\'e}ticos A-B y A-B-C",

abstract = "The phase field method is based on the thermodynamics, mechanism and kinetic of the precipitation reactions in alloys. This method can be used to simulate numerically the microstructural evolution in an alloy system, and constitutes a powerful tool to predict the phase transformations. The phase field method solves the nonlinear Cahn-Hilliard partial differential equation and offers computational advantages. The effect of the parameters into this equation on the morphology and kinetics of the phase separation in binary A-B and ternary A-B-C hypothetical alloy systems with a miscibility gap was analyzed. The results showed that the atomic mobility modifies the phase separation kinetics. In contrast, elastic-strain energy is an important parameter that affects the morphology of phases causing changes from spheres to cuboids or plates with preferential crystallographic alignment.",

keywords = "Cahn-Hilliard equation, Hypothetical Alloys, Numerical simulation, Spinodal decomposition",

author = "Avila-D{\'a}vila, {E. O.} and S. Lezama-{\'A}lvarez and Saucedo-Mu{\~n}{\'o}z, {M. L.} and L{\'o}pez-Hirata, {V. M.} and Gonz{\'a}lez-Vel{\'a}zquez, {J. L.} and M. P{\'e}rez-Labra",

year = "2012",

month = may,

doi = "10.3989/revmetalm.1168",

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volume = "48",

pages = "223--236",

journal = "Revista de Metalurgia (Madrid)",

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T1 - Simulación numérica de la descomposición espinodal en sistemas de aleación hipotéticos A-B y A-B-C

AU - Avila-Dávila, E. O.

AU - Lezama-Álvarez, S.

AU - Saucedo-Muñóz, M. L.

AU - López-Hirata, V. M.

AU - González-Velázquez, J. L.

AU - Pérez-Labra, M.

PY - 2012/5

Y1 - 2012/5

N2 - The phase field method is based on the thermodynamics, mechanism and kinetic of the precipitation reactions in alloys. This method can be used to simulate numerically the microstructural evolution in an alloy system, and constitutes a powerful tool to predict the phase transformations. The phase field method solves the nonlinear Cahn-Hilliard partial differential equation and offers computational advantages. The effect of the parameters into this equation on the morphology and kinetics of the phase separation in binary A-B and ternary A-B-C hypothetical alloy systems with a miscibility gap was analyzed. The results showed that the atomic mobility modifies the phase separation kinetics. In contrast, elastic-strain energy is an important parameter that affects the morphology of phases causing changes from spheres to cuboids or plates with preferential crystallographic alignment.

AB - The phase field method is based on the thermodynamics, mechanism and kinetic of the precipitation reactions in alloys. This method can be used to simulate numerically the microstructural evolution in an alloy system, and constitutes a powerful tool to predict the phase transformations. The phase field method solves the nonlinear Cahn-Hilliard partial differential equation and offers computational advantages. The effect of the parameters into this equation on the morphology and kinetics of the phase separation in binary A-B and ternary A-B-C hypothetical alloy systems with a miscibility gap was analyzed. The results showed that the atomic mobility modifies the phase separation kinetics. In contrast, elastic-strain energy is an important parameter that affects the morphology of phases causing changes from spheres to cuboids or plates with preferential crystallographic alignment.

KW - Cahn-Hilliard equation

KW - Hypothetical Alloys

KW - Numerical simulation

KW - Spinodal decomposition

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DO - 10.3989/revmetalm.1168

M3 - Artículo

SN - 0034-8570

VL - 48

SP - 223

EP - 236

JO - Revista de Metalurgia (Madrid)

JF - Revista de Metalurgia (Madrid)

IS - 3

ER -

Simulación numérica de la descomposición espinodal en sistemas de aleación hipotéticos A-B y A-B-C

Abstract

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