Influence of Cold Deformation on Carbide Precipitation Kinetics in a Fe-22Mn-0.45C TWIP Steel

Escobar, Javier; Jiménez, José Luis; Artigas, Alfredo; Perez-Ipiña, Juan; Monsalve, Alberto

doi:10.3390/ma15113748

Open AccessArticle

Influence of Cold Deformation on Carbide Precipitation Kinetics in a Fe-22Mn-0.45C TWIP Steel

by

Javier Escobar

¹,

José Luis Jiménez

¹,

Alfredo Artigas

¹,

Juan Perez-Ipiña

²

and

Alberto Monsalve

^1,3,*

¹

Department of Metallurgical Engineering, Universidad de Santiago de Chile, Av. Ecuador 3735, Estación Central, Santiago 9170124, Chile

²

Conicet, Neuquén 8300, Argentina

³

Structural Integrity Program, Engineering Faculty, Universidad de Santiago de Chile, Santiago 9170124, Chile

^*

Author to whom correspondence should be addressed.

Materials 2022, 15(11), 3748; https://doi.org/10.3390/ma15113748

Submission received: 17 April 2022 / Revised: 19 May 2022 / Accepted: 20 May 2022 / Published: 24 May 2022

(This article belongs to the Special Issue Microstructure and Mechanical Properties of Alloys)

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Abstract

The carbide precipitation kinetics in a Fe-22Mn-0.45C TWIP steel subjected to three different cold-deformation levels, annealed at various temperatures, were studied. The studied carbides included chemical compositions, morphology, precipitation sites, volume fraction, and size. Manganese carbides were precipitated in a temperature range between 525 and 650 °C. Volume fraction increased with cold-deformation and decreased with annealing temperature. Carbide size increased with cold-deformation and annealing temperatures up to 625 °C, suffering a notable reduction at 650 °C. Precipitation kinetics were described by means of precipitation curves for 0.1% (vol.) of Fe-Mn-carbides. A kinetic model was used, and two stages were found. Complementarily, austenite grain size and microhardness were also measured. With increases in annealing time, microhardness decreased until it reached a nearly constant value, indicating that recrystallization was complete, while, with increases in annealing temperature, grain size increased.

Keywords: TWIP steels; plastic deformation; Fe-Mn-carbides; precipitation kinetics

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MDPI and ACS Style

Escobar, J.; Jiménez, J.L.; Artigas, A.; Perez-Ipiña, J.; Monsalve, A. Influence of Cold Deformation on Carbide Precipitation Kinetics in a Fe-22Mn-0.45C TWIP Steel. Materials 2022, 15, 3748. https://doi.org/10.3390/ma15113748

AMA Style

Escobar J, Jiménez JL, Artigas A, Perez-Ipiña J, Monsalve A. Influence of Cold Deformation on Carbide Precipitation Kinetics in a Fe-22Mn-0.45C TWIP Steel. Materials. 2022; 15(11):3748. https://doi.org/10.3390/ma15113748

Chicago/Turabian Style

Escobar, Javier, José Luis Jiménez, Alfredo Artigas, Juan Perez-Ipiña, and Alberto Monsalve. 2022. "Influence of Cold Deformation on Carbide Precipitation Kinetics in a Fe-22Mn-0.45C TWIP Steel" Materials 15, no. 11: 3748. https://doi.org/10.3390/ma15113748

APA Style

Escobar, J., Jiménez, J. L., Artigas, A., Perez-Ipiña, J., & Monsalve, A. (2022). Influence of Cold Deformation on Carbide Precipitation Kinetics in a Fe-22Mn-0.45C TWIP Steel. Materials, 15(11), 3748. https://doi.org/10.3390/ma15113748

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Influence of Cold Deformation on Carbide Precipitation Kinetics in a Fe-22Mn-0.45C TWIP Steel

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