The role of C and Mn at the austenite/pearlite reaction front during non-steady-state pearlite growth in a Fe-C-Mn steel

M. M. Aranda; R. Rementeria; J. Poplawsky; E. Urones-Garrote; C. Capdevila

doi:10.1016/j.scriptamat.2015.04.005

The role of C and Mn at the austenite/pearlite reaction front during non-steady-state pearlite growth in a Fe-C-Mn steel

M. M. Aranda, R. Rementeria, J. Poplawsky, E. Urones-Garrote, C. Capdevila

electron Microscopy and Microanalysis

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

23 Scopus citations

Abstract

The role of C and Mn during the growth of pearlite under non-steady state conditions is analyzed by comparing phase compositions of austenite, ferrite and cementite (γ+α+θ) through the use of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), and atom probe tomography (APT) measurements across the austenite/pearlite interface. A local Mn enrichment and C depletion at the austenite/pearlite interface has been measured, which causes a change in the transformation driving force with time during divergent pearlite growth.

Original language	English
Pages (from-to)	67-70
Number of pages	4
Journal	Scripta Materialia
Volume	104
DOIs	https://doi.org/10.1016/j.scriptamat.2015.04.005
State	Published - Jul 15 2015

Funding

The authors acknowledge Acerinox for manufacturing the steel. This research was supported by ORNL’s Center for Nanophase Materials Sciences (CNMS) , which is a U.S. Department of Energy, Office of Science User Facility . Authors acknowledge financial support to MINECO and FEDER in the form of ENE2009-13766-C04-01 and MAT2013-47460-C5-2-P projects.

Keywords

Divergent pearlite
Growth rate
Interface diffusion
Pearlitic steel

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10.1016/j.scriptamat.2015.04.005

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title = "The role of C and Mn at the austenite/pearlite reaction front during non-steady-state pearlite growth in a Fe-C-Mn steel",

abstract = "The role of C and Mn during the growth of pearlite under non-steady state conditions is analyzed by comparing phase compositions of austenite, ferrite and cementite (γ+α+θ) through the use of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), and atom probe tomography (APT) measurements across the austenite/pearlite interface. A local Mn enrichment and C depletion at the austenite/pearlite interface has been measured, which causes a change in the transformation driving force with time during divergent pearlite growth.",

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AU - Aranda, M. M.

AU - Rementeria, R.

AU - Poplawsky, J.

AU - Urones-Garrote, E.

AU - Capdevila, C.

PY - 2015/7/15

Y1 - 2015/7/15

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AB - The role of C and Mn during the growth of pearlite under non-steady state conditions is analyzed by comparing phase compositions of austenite, ferrite and cementite (γ+α+θ) through the use of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), and atom probe tomography (APT) measurements across the austenite/pearlite interface. A local Mn enrichment and C depletion at the austenite/pearlite interface has been measured, which causes a change in the transformation driving force with time during divergent pearlite growth.

KW - Divergent pearlite

KW - Growth rate

KW - Interface diffusion

KW - Pearlitic steel

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The role of C and Mn at the austenite/pearlite reaction front during non-steady-state pearlite growth in a Fe-C-Mn steel

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