Diffusional and Partitionless Ferrite‐to‐Austenite Phase Transformations during Intercritical Annealing of Medium‐Mn Steels

Mueller, Josh J.; Matlock, David K.; Speer, John G.; De Moor, Emmanuel

doi:10.1002/srin.202100298

Title: Diffusional and Partitionless Ferrite‐to‐Austenite Phase Transformations during Intercritical Annealing of Medium‐Mn Steels

Journal Article · 17 August 2021 · Steel Research International

DOI: https://doi.org/10.1002/srin.202100298 · OSTI ID:1833884

^[1]; Matlock, David K. ^[1]; Speer, John G. ^[1]; De Moor, Emmanuel ^[1]

Advanced Steel Processing and Products Research Center Colorado School of Mines 1500 Illinois Street Golden CO 80401 USA

Experimental research on intercritical annealing of a cold‐rolled Fe–7Mn steel with ultralow carbon concentration is presented, providing insight into the efficacy of generating Mn‐enriched austenite during relatively short (≈1000 s) heat treatments compared with batch annealing, as well as the phase transformation mechanisms that can occur during intercritical annealing. It is shown through both bulk characterization and electron microscopy in conjunction with energy‐dispersive X‐ray spectroscopy that Mn partitioning to austenite occurs via diffusional, partitioning growth of austenite during these shorter treatments and that the intercritical temperature influences the level of Mn enrichment in austenite. Evidence of massive (partitionless) and diffusional (partitioning) transformations of ferrite to austenite occurring simultaneously in a single sample are also shown along with a thermodynamic rationale for this occurrence, which is suggested to be related to residual Mn‐banding that develops during solidification.

View Accepted Manuscript (Publisher)

Cite

Export

Save

Sponsoring Organization:: USDOE

OSTI ID:: 1833884

Journal Information:: Steel Research International, Journal Name: Steel Research International Journal Issue: 12 Vol. 92; ISSN 1611-3683

Publisher:: Wiley Blackwell (John Wiley & Sons)Copyright Statement

Country of Publication:: Germany

Language:: English

References (30)

On the existence of the β→αm transformation in the alloy systems Ti-Ag, Ti-Au, and Ti-Si Plichta, M. R.; Williams, J. C.; Aaronson, H. I. Metallurgical Transactions A, Vol. 8, Issue 12 https://doi.org/10.1007/BF02646561	journal	December 1977
Mechanism of work hardening in Hadfield manganese steel Dastur, Y. N.; Leslie, W. C. Metallurgical Transactions A, Vol. 12, Issue 5 https://doi.org/10.1007/BF02648339	journal	May 1981
Kinetics of strain-induced martensitic nucleation Olson, G. B.; Cohen, Morris Metallurgical Transactions A, Vol. 6, Issue 4 https://doi.org/10.1007/BF02672301	journal	April 1975
Banded structure in Dual Phase steels in relation with the austenite-to-ferrite transformation mechanisms Krebs, Benoit; Germain, Lionel; Hazotte, Alain Journal of Materials Science, Vol. 46, Issue 21 https://doi.org/10.1007/s10853-011-5671-9	journal	November 2011
Interactions between ferrite recrystallization and austenite formation in high-strength steels Chbihi, A.; Barbier, D.; Germain, L. Journal of Materials Science, Vol. 49, Issue 10 https://doi.org/10.1007/s10853-014-8029-2	journal	February 2014
Driving force for γ→ε martensitic transformation and stacking fault energy of γ in Fe-Mn binary system Lee, Young-Kook; Choi, Chongsool Metallurgical and Materials Transactions A, Vol. 31, Issue 2 https://doi.org/10.1007/s11661-000-0271-3	journal	February 2000
Phase transformation and mechanical properties of si-free CMnAl transformation-induced plasticity-aided steel Mahieu, J.; De Cooman, B. C.; Maki, J. Metallurgical and Materials Transactions A, Vol. 33, Issue 8 https://doi.org/10.1007/s11661-002-0378-9	journal	August 2002
Derivation and Variation in Composition-Dependent Stacking Fault Energy Maps Based on Subregular Solution Model in High-Manganese Steels Saeed-Akbari, A.; Imlau, J.; Prahl, U. Metallurgical and Materials Transactions A, Vol. 40, Issue 13 https://doi.org/10.1007/s11661-009-0050-8	journal	October 2009
Austenite Stability Effects on Tensile Behavior of Manganese-Enriched-Austenite Transformation-Induced Plasticity Steel Gibbs, P. J.; De Moor, E.; Merwin, M. J. Metallurgical and Materials Transactions A, Vol. 42, Issue 12 https://doi.org/10.1007/s11661-011-0687-y	journal	April 2011
Characterization and Prediction of Flow Behavior in High-Manganese Twinning Induced Plasticity Steels: Part I. Mechanism Maps and Work-Hardening Behavior Saeed-Akbari, A.; Mosecker, L.; Schwedt, A. Metallurgical and Materials Transactions A, Vol. 43, Issue 5 https://doi.org/10.1007/s11661-011-0993-4	journal	December 2011
Solidification, segregation, and banding in carbon and alloy steels Krauss, George Metallurgical and Materials Transactions B, Vol. 34, Issue 6 https://doi.org/10.1007/s11663-003-0084-z	journal	December 2003
Carbon partitioning into austenite after martensite transformation Speer, J.; Matlock, D. K.; De Cooman, B. C. Acta Materialia, Vol. 51, Issue 9 https://doi.org/10.1016/S1359-6454(03)00059-4	journal	May 2003
On the origin of dynamic strain aging in twinning-induced plasticity steels Lee, Seok-Jae; Kim, Jinkyung; Kane, Shashank N. Acta Materialia, Vol. 59, Issue 17 https://doi.org/10.1016/j.actamat.2011.07.040	journal	October 2011
Difference in transformation behavior between ferrite and austenite formations in medium manganese steel Nakada, N.; Mizutani, K.; Tsuchiyama, T. Acta Materialia, Vol. 65 https://doi.org/10.1016/j.actamat.2013.10.067	journal	February 2014
The influence of manganese content on the stacking fault and austenite/ε-martensite interfacial energies in Fe–Mn–(Al–Si) steels investigated by experiment and theory Pierce, D. T.; Jiménez, J. A.; Bentley, J. Acta Materialia, Vol. 68 https://doi.org/10.1016/j.actamat.2014.01.001	journal	April 2014
The influence of stacking fault energy on the microstructural and strain-hardening evolution of Fe–Mn–Al–Si steels during tensile deformation Pierce, D. T.; Jiménez, J. A.; Bentley, J. Acta Materialia, Vol. 100 https://doi.org/10.1016/j.actamat.2015.08.030	journal	November 2015
Twinning-induced plasticity (TWIP) steels De Cooman, Bruno C.; Estrin, Yuri; Kim, Sung Kyu Acta Materialia, Vol. 142 https://doi.org/10.1016/j.actamat.2017.06.046	journal	January 2018
High manganese austenitic twinning induced plasticity steels: A review of the microstructure properties relationships Bouaziz, O.; Allain, S.; Scott, C. P. Current Opinion in Solid State and Materials Science, Vol. 15, Issue 4 https://doi.org/10.1016/j.cossms.2011.04.002	journal	August 2011
Austenite formation and cementite dissolution during intercritical annealing of a medium-manganese steel from a martensitic condition Mueller, J. J.; Hu, X.; Sun, X. Materials & Design, Vol. 203 https://doi.org/10.1016/j.matdes.2021.109598	journal	May 2021
Quenching and partitioning martensite—A novel steel heat treatment Edmonds, D. V.; He, K.; Rizzo, F. C. Materials Science and Engineering: A, Vol. 438-440 https://doi.org/10.1016/j.msea.2006.02.133	journal	November 2006
On the relationship between work hardening and twinning rate in TWIP steels Renard, K.; Jacques, P. J. Materials Science and Engineering: A, Vol. 542 https://doi.org/10.1016/j.msea.2012.01.123	journal	April 2012
The influence of silicon and aluminum alloying on the lattice parameter and stacking fault energy of austenitic steel Lehnhoff, G. R.; Findley, K. O.; De Cooman, B. C. Scripta Materialia, Vol. 92 https://doi.org/10.1016/j.scriptamat.2014.07.019	journal	December 2014
Quantitative investigation into the influence of temperature on carbide and austenite evolution during partitioning of a quenched and partitioned steel Pierce, D. T.; Coughlin, D. R.; Williamson, D. L. Scripta Materialia, Vol. 121 https://doi.org/10.1016/j.scriptamat.2016.04.027	journal	August 2016
Medium Mn transformation-induced plasticity steels: Recent progress and challenges Suh, Dong-Woo; Kim, Sung-Joon Scripta Materialia, Vol. 126 https://doi.org/10.1016/j.scriptamat.2016.07.013	journal	January 2017
On the sources of work hardening in multiphase steels assisted by transformation-induced plasticity Jacques, P.; Furnémont, Q.; Mertens, A. Philosophical Magazine A, Vol. 81, Issue 7 https://doi.org/10.1080/01418610108216637	journal	July 2001
Work hardening effects in austenitic stainless steels Llewellyn, D. T. Materials Science and Technology, Vol. 13, Issue 5 https://doi.org/10.1179/mst.1997.13.5.389	journal	May 1997
Supra-Ductile and High-Strength Manganese-TRIP/TWIP Steels for High Energy Absorption Purposes. Frommeyer, Georg; Brüx, Udo; Neumann, Peter ISIJ International, Vol. 43, Issue 3 https://doi.org/10.2355/isijinternational.43.438	journal	January 2003
Ductility of 0.1-0.6C-1.5Si-1.5Mn Ultra High-strength TRIP-aided Sheet Steels with Bainitic Ferrite Matrix Sugimoto, Koh-ichi; Tsunezawa, Michitaka; Hojo, Tomohiko ISIJ International, Vol. 44, Issue 9 https://doi.org/10.2355/isijinternational.44.1608	journal	January 2004
Image Quality Analysis: A New Method of Characterizing Microstructures Wu, Jinghui; Wray, Peter J.; Garcia, Calixto I. ISIJ International, Vol. 45, Issue 2 https://doi.org/10.2355/isijinternational.45.254	journal	January 2005
Enhancement of elongation by retained austenite in intercritical annealed 0.4C-1.5Si-0.8Mn steel. Matsumura, Osamu; Sakuma, Yasuharu; Takechi, Hiroshi Transactions of the Iron and Steel Institute of Japan, Vol. 27, Issue 7 https://doi.org/10.2355/isijinternational1966.27.570	journal	January 1987

Similar Records

Austenite Formation and Manganese Partitioning during Double Soaking of an Ultralow Carbon Medium‐Manganese Steel

Journal Article · 2023 · Steel Research International · OSTI ID:1963745

Mueller, Josh J.; Glover, Alexandra G.; Matlock, David K.; +2 more

Austenite formation and cementite dissolution during intercritical annealing of a medium-manganese steel from a martensitic condition

Journal Article · 2021 · Materials & Design · OSTI ID:1772610

Mueller, J. J.; Hu, X.; Sun, X.; +6 more

A Composite Modeling Analysis of the Deformation Behavior of Medium Manganese Steels

Conference · 2014 · OSTI ID:1337518

Rana, Radhakanta; Gibbs, Paul J; De Moor, Emmanuel; +2 more

Title: Diffusional and Partitionless Ferrite‐to‐Austenite Phase Transformations during Intercritical Annealing of Medium‐Mn Steels

Citation Formats

References (30)

Similar Records

Related Subjects