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Published in: Physics of Metals and Metallography 14/2021

18-08-2021 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

On the Prediction of Stacking Fault Energy on Medium MN Steels

Authors: H. Essoussi, S. Ettaqi, E. Essadiqi

Published in: Physics of Metals and Metallography | Issue 14/2021

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Abstract

Stacking fault energy estimation is considered as an important stage in the process of designing advanced high-strength steels. Therefore, in the present study, the thermochemical model of Olsen and Cohen was employed to calculate the stacking fault energy (SFE) in Fe–C–Mn–Al–Si steels with <0.6 wt % C, manganese 3–10 wt %, aluminum 0.5–3 wt % and silicon 0.5–3 wt %. The calculation findings revealed that besides the importance of high Mn, the addition of Al and Si leads to SFE values in the range of 20–40 mJ/m2 that allows the activation of twinning induced plasticity (TWIP) and/or transformation induced plasticity (TRIP) effects.
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Metadata
Title
On the Prediction of Stacking Fault Energy on Medium MN Steels
Authors
H. Essoussi
S. Ettaqi
E. Essadiqi
Publication date
18-08-2021
Publisher
Pleiades Publishing
Published in
Physics of Metals and Metallography / Issue 14/2021
Print ISSN: 0031-918X
Electronic ISSN: 1555-6190
DOI
https://doi.org/10.1134/S0031918X21140076