Details of pearlite to austenite transformation in steel: Experiments and phase-field modeling

V. Mattos Ferreira; M. G. Mecozzi; R. H. Petrov; J. Sietsma

doi:10.1016/j.commatsci.2023.112368

Details of pearlite to austenite transformation in steel: Experiments and phase-field modeling

V. Mattos Ferreira^*, M. G. Mecozzi, R. H. Petrov, J. Sietsma

^*Corresponding author for this work

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Abstract

The austenitization of an initial pearlitic microstructure is simulated using the phase field model to achieve insight into White Etching Layer (WEL) formation in pearlitic railway steels. The simulations take into account the resolution of the cementite lamellae within a pearlite colony as well as the presence of pro-eutectoid ferrite. The austenite growth kinetics and morphology obtained via simulations are compared with dilatometry and microscopy observations. The influence of γ/θ and γ/α mobilities on the austenite growth morphology are studied. The simulations reproduce the microstructural features as well as the experimentally observed kinetics behavior of austenite formation, involving the correlation between mobilities and nucleation behavior.

Original language	English
Article number	112368
Number of pages	12
Journal	Computational Materials Science
Volume	228
DOIs	https://doi.org/10.1016/j.commatsci.2023.112368
Publication status	Published - 2023

Keywords

Pearlite
Phase transformation
Phase-field modeling

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10.1016/j.commatsci.2023.112368

1-s2.0-S0927025623003622-mainFinal published version, 4.1 MBLicence: CC BY

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title = "Details of pearlite to austenite transformation in steel: Experiments and phase-field modeling",

abstract = "The austenitization of an initial pearlitic microstructure is simulated using the phase field model to achieve insight into White Etching Layer (WEL) formation in pearlitic railway steels. The simulations take into account the resolution of the cementite lamellae within a pearlite colony as well as the presence of pro-eutectoid ferrite. The austenite growth kinetics and morphology obtained via simulations are compared with dilatometry and microscopy observations. The influence of γ/θ and γ/α mobilities on the austenite growth morphology are studied. The simulations reproduce the microstructural features as well as the experimentally observed kinetics behavior of austenite formation, involving the correlation between mobilities and nucleation behavior.",

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T2 - Experiments and phase-field modeling

AU - Mattos Ferreira, V.

AU - Mecozzi, M. G.

AU - Petrov, R. H.

AU - Sietsma, J.

PY - 2023

Y1 - 2023

N2 - The austenitization of an initial pearlitic microstructure is simulated using the phase field model to achieve insight into White Etching Layer (WEL) formation in pearlitic railway steels. The simulations take into account the resolution of the cementite lamellae within a pearlite colony as well as the presence of pro-eutectoid ferrite. The austenite growth kinetics and morphology obtained via simulations are compared with dilatometry and microscopy observations. The influence of γ/θ and γ/α mobilities on the austenite growth morphology are studied. The simulations reproduce the microstructural features as well as the experimentally observed kinetics behavior of austenite formation, involving the correlation between mobilities and nucleation behavior.

AB - The austenitization of an initial pearlitic microstructure is simulated using the phase field model to achieve insight into White Etching Layer (WEL) formation in pearlitic railway steels. The simulations take into account the resolution of the cementite lamellae within a pearlite colony as well as the presence of pro-eutectoid ferrite. The austenite growth kinetics and morphology obtained via simulations are compared with dilatometry and microscopy observations. The influence of γ/θ and γ/α mobilities on the austenite growth morphology are studied. The simulations reproduce the microstructural features as well as the experimentally observed kinetics behavior of austenite formation, involving the correlation between mobilities and nucleation behavior.

KW - Pearlite

KW - Phase transformation

KW - Phase-field modeling

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DO - 10.1016/j.commatsci.2023.112368

M3 - Article

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SN - 0927-0256

VL - 228

JO - Computational Materials Science

JF - Computational Materials Science

M1 - 112368

ER -

Details of pearlite to austenite transformation in steel: Experiments and phase-field modeling

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Keywords

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