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Constrained Equilibrium Reactions in a Low Carbon Steel During Heat Treatments Below the MS.

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Title: Constrained Equilibrium Reactions in a Low Carbon Steel During Heat Treatments Below the MS.
Authors: Castro Cerda, Felipe M.1 (AUTHOR) felipe.castro@usach.cl, Goulas, Constantinos2 (AUTHOR), Hernández, Eliseo I.1,3 (AUTHOR), Sanhueza, Juan P.4 (AUTHOR), Ros-Yanez, Tanya5 (AUTHOR), Petrov, Roumen H.3,6 (AUTHOR)
Source: Steel Research International. Aug2023, Vol. 94 Issue 8, p1-8. 8p.
Subjects: Mild steel, Heat treatment of steel, Equilibrium reactions, Heat treatment, Martensite
Abstract: Isothermal heat treatments below the martensite start temperature are carried out in a 0.25C‐1.4Mn‐1.4Si‐0.32Mo steel (in wt%). The microstructural observation reveals a combination of tempered lath and plate martensite, accompanied by bainite and retained austenite. The temperature variation of the austenitic carbon content under different constrained equilibrium models is calculated and compared with experimental measurements. Neither of the existing models seems to predict the behavior of the measured austenitic carbon content in the temperature range studied. The results suggest that the diffusional formation of bainite governs the carbon content of austenite at temperatures nearby the MS. [ABSTRACT FROM AUTHOR]
Copyright of Steel Research International is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="JN" term="%22Steel+Research+International%22">Steel Research International</searchLink>. Aug2023, Vol. 94 Issue 8, p1-8. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Mild+steel%22">Mild steel</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment+of+steel%22">Heat treatment of steel</searchLink><br /><searchLink fieldCode="DE" term="%22Equilibrium+reactions%22">Equilibrium reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Martensite%22">Martensite</searchLink>
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  Data: Isothermal heat treatments below the martensite start temperature are carried out in a 0.25C‐1.4Mn‐1.4Si‐0.32Mo steel (in wt%). The microstructural observation reveals a combination of tempered lath and plate martensite, accompanied by bainite and retained austenite. The temperature variation of the austenitic carbon content under different constrained equilibrium models is calculated and compared with experimental measurements. Neither of the existing models seems to predict the behavior of the measured austenitic carbon content in the temperature range studied. The results suggest that the diffusional formation of bainite governs the carbon content of austenite at temperatures nearby the MS. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Steel Research International is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1002/srin.202200841
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      – Code: eng
        Text: English
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      – SubjectFull: Mild steel
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      – SubjectFull: Equilibrium reactions
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              Text: Aug2023
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              Y: 2023
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