Constrained Equilibrium Reactions in a Low Carbon Steel During Heat Treatments Below the <i>M</i><sub>S</sub>-Reference-Cited by-同舟云学术

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

Published:2023-04-27 Issue:8 Volume:94 Page:
ISSN:1611-3683
Container-title:steel research international
language:en
Short-container-title:steel research int.

Author:

Castro Cerda Felipe M.¹^ORCID,Goulas Constantinos²,Hernández Eliseo I.¹³,Sanhueza Juan P.⁴,Ros-Yanez Tanya⁵,Petrov Roumen H.³⁶

Affiliation:

1. Department of Metallurgy University of Santiago de Chile Alameda 3363 Estación Central Santiago 9170022 Chile

2. Faculty of Engineering Technology (ET) Department of Design, Production, and Management University of Twente Drienerlolaan 5 7500AE Enschede The Netherlands

3. Department of Electromechanical Systems and Materials, Research Group Materials Science and Technology Ghent University Tech Lane Science Park Campus A 46 Gent Belgium

4. Departamento de Ingeniería de Materiales Universidad de Concepción Edmundo Larenas 270 Concepción 4070415 Chile

5. Research & Innovation Center Cleveland-Cliffs Inc. 6180 Research Way Middletown OH 45005 USA

6. Department of Materials Science and Engineering Delft University of Technology Mekelweg 2 2628CD Delft The Netherlands

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.

Funder

Agenția Națională pentru Cercetare și Dezvoltare

Publisher

Wiley

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/srin.202200841

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