Predicting the strain hardening behavior and constructing processing maps of a lightweight Fe–Mn–Al–C steel through phenomenological modelling

This research deals with predicting the strain hardening behavior and constructing the processing maps of a lightweight steel over a wide range of temperature. To achieve this, the tensile tests were conducted at temperatures of 100 °C–1100 °C under strain rates of 0.001, 0.01, and 0.1s−1 up to frac...

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Main Authors: Iman Rahimi, Hamid Reza Abedi
Format: Article
Language:English
Published: Elsevier 2024-05-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785424007750
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author Iman Rahimi
Hamid Reza Abedi
author_facet Iman Rahimi
Hamid Reza Abedi
author_sort Iman Rahimi
collection DOAJ
description This research deals with predicting the strain hardening behavior and constructing the processing maps of a lightweight steel over a wide range of temperature. To achieve this, the tensile tests were conducted at temperatures of 100 °C–1100 °C under strain rates of 0.001, 0.01, and 0.1s−1 up to fracture. In order to predict the deformation behavior of the lightweight steel, strain compensated Arrhenius-type models were employed. Considering the wide temperature range under investigation, the activation energies and strain rate sensitivity coefficients substantially varied, therefore, three different temperature ranges of 25–200 °C, 300–600 °C, and 700–1000 °C were considered for the prediction of the flow stress level. To evaluate the accuracy of the applied models, the (i) root mean square error (RMSE), (ii) average absolute relative error (AARE), and (iii) correlation coefficient (R), were calculated as well-known statistical parameters. A good agreement was observed between the predicted and actual flow stress. Employing the predicted data, the strain hardening curves were plotted and power dissipation/instability maps were constructed at various strain levels and temperature ranges. The rapid hardening regions, the regions with high efficiency and instability regions were identified which would be valuable for industrialization of the experimented material.
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spelling doaj.art-9a2971f8a88e4f1ea45e7ec7ef13c9ec2024-04-11T04:41:20ZengElsevierJournal of Materials Research and Technology2238-78542024-05-013028912901Predicting the strain hardening behavior and constructing processing maps of a lightweight Fe–Mn–Al–C steel through phenomenological modellingIman Rahimi0Hamid Reza Abedi1School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, IranCorresponding author.; School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, IranThis research deals with predicting the strain hardening behavior and constructing the processing maps of a lightweight steel over a wide range of temperature. To achieve this, the tensile tests were conducted at temperatures of 100 °C–1100 °C under strain rates of 0.001, 0.01, and 0.1s−1 up to fracture. In order to predict the deformation behavior of the lightweight steel, strain compensated Arrhenius-type models were employed. Considering the wide temperature range under investigation, the activation energies and strain rate sensitivity coefficients substantially varied, therefore, three different temperature ranges of 25–200 °C, 300–600 °C, and 700–1000 °C were considered for the prediction of the flow stress level. To evaluate the accuracy of the applied models, the (i) root mean square error (RMSE), (ii) average absolute relative error (AARE), and (iii) correlation coefficient (R), were calculated as well-known statistical parameters. A good agreement was observed between the predicted and actual flow stress. Employing the predicted data, the strain hardening curves were plotted and power dissipation/instability maps were constructed at various strain levels and temperature ranges. The rapid hardening regions, the regions with high efficiency and instability regions were identified which would be valuable for industrialization of the experimented material.http://www.sciencedirect.com/science/article/pii/S2238785424007750Lightweight steelArrhenius modelProcessing mapStrain hardeningThermomechanical processing
spellingShingle Iman Rahimi
Hamid Reza Abedi
Predicting the strain hardening behavior and constructing processing maps of a lightweight Fe–Mn–Al–C steel through phenomenological modelling
Journal of Materials Research and Technology
Lightweight steel
Arrhenius model
Processing map
Strain hardening
Thermomechanical processing
title Predicting the strain hardening behavior and constructing processing maps of a lightweight Fe–Mn–Al–C steel through phenomenological modelling
title_full Predicting the strain hardening behavior and constructing processing maps of a lightweight Fe–Mn–Al–C steel through phenomenological modelling
title_fullStr Predicting the strain hardening behavior and constructing processing maps of a lightweight Fe–Mn–Al–C steel through phenomenological modelling
title_full_unstemmed Predicting the strain hardening behavior and constructing processing maps of a lightweight Fe–Mn–Al–C steel through phenomenological modelling
title_short Predicting the strain hardening behavior and constructing processing maps of a lightweight Fe–Mn–Al–C steel through phenomenological modelling
title_sort predicting the strain hardening behavior and constructing processing maps of a lightweight fe mn al c steel through phenomenological modelling
topic Lightweight steel
Arrhenius model
Processing map
Strain hardening
Thermomechanical processing
url http://www.sciencedirect.com/science/article/pii/S2238785424007750
work_keys_str_mv AT imanrahimi predictingthestrainhardeningbehaviorandconstructingprocessingmapsofalightweightfemnalcsteelthroughphenomenologicalmodelling
AT hamidrezaabedi predictingthestrainhardeningbehaviorandconstructingprocessingmapsofalightweightfemnalcsteelthroughphenomenologicalmodelling