Microstructure Evolution and Kinetics of Static Recrystallization of Medium Mn Steel in the Two‐Hit Isothermal Compression
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DOI: 10.1002/srin.202000443
Abstract: The thermal deformation behavior and microstructure evolution of medium Mn steel (0.15C–7Mn) are investigated by the two‐hit compression tests. The results reveal that different static softening dynamics are the functions of deformation temperature, interval time,… read more here.
Keywords: medium steel; medium; microstructure evolution; grain ... See more keywords
The Effect of the Heating Process on the Warm Deformation Behavior and Microstructure of Medium Mn Steel
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DOI: 10.1002/srin.202400835
Abstract: This study investigates the effects of heating processes on the microstructure and deformation behavior of medium Mn steel during warm deformation. The samples treated by austenitization maintain an austenitic microstructure during deformation, which transforms into… read more here.
Keywords: temperature; medium steel; deformation; behavior ... See more keywords
Tailoring Heterogeneous Austenite Stability via Rapid Heating in Medium‐Mn Steel: Enabling Discontinuous Sustained Transformation‐Induced Plasticity
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DOI: 10.1002/srin.202500784
Abstract: This study systematically investigates the effects of heating rate on the microstructural evolution, mechanical properties, austenite stability, and deformation strengthening mechanisms of Fe‐6Mn‐3Al‐0.2C medium‐Mn steel under austenite reverse transformation (ART), moderate rapid heating (MRH), and… read more here.
Keywords: medium steel; stability; rapid heating; austenite stability ... See more keywords
Thermodynamic–kinetic calculations and dilatometric verification of the martensitic and bainitic transformations in 4% medium-Mn steel
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DOI: 10.1007/s10973-024-13662-y
Abstract: The present study investigated the theoretical and experimental phase transitions phenomena during continuous cooling and isothermal holding above and below Ms temperature in 4 mass. % Mn medium-Mn steel. The thermodynamic–kinetic calculations were performed using… read more here.
Keywords: medium steel; time; kinetic calculations; thermodynamic kinetic ... See more keywords
Enhancement austenite content in medium-Mn steel by introducing cold-rolled deformation and inhibiting subsequent recrystallization
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DOI: 10.1016/j.matlet.2021.130249
Abstract: Abstract The austenite (γ) reversed transformation of medium-Mn steel during intercritical annealing (IA) process was investigated based on different initial martensite (α') microstructure. The results reveal that the volume fraction of γ phase gradually increases… read more here.
Keywords: inhibiting subsequent; recrystallization; subsequent recrystallization; medium ... See more keywords
Flash annealing yields a strong and ductile medium Mn steel with heterogeneous microstructure
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DOI: 10.1016/j.scriptamat.2021.113819
Abstract: Abstract Austenite reversion treatment (ART) is usually used to obtain retained austenite (RA) in medium Mn steel (MMS). In this contribution, we proposed a flash-annealing strategy to produce MMS, which allows us to efficiently obtain… read more here.
Keywords: flash; heterogeneous microstructure; flash annealing; medium steel ... See more keywords
The respective strain hardening of constituting phases during Lüders deformation of a medium-Mn steel
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DOI: 10.1080/09500839.2021.1904300
Abstract: ABSTRACT The present work quantifies the contribution of constituting phases to the strain hardening in a medium-Mn steel during Lüders deformation. The strain hardening of the ferrite matrix (∼ 46.1 MPa) is much lower than that… read more here.
Keywords: strain; medium steel; strain hardening; ders deformation ... See more keywords
Microstructure and Mechanical Properties of Simulated Heat Affected Zone of Laser Welded Medium-Mn Steel
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DOI: 10.2355/isijinternational.isijint-2019-716
Abstract: Advanced High Strength Steels (AHSS) are most popular car body material in the current automotive industry, since they can reduce the automobile body weight without compromising safety.1,2) Moreover, the current tendency of AHSS have been… read more here.
Keywords: high strength; steel; medium steel; microstructure ... See more keywords
Austenite Decomposition of a Lean Medium Mn Steel Suitable for Quenching and Partitioning Process: Comparison of CCT and DCCT Diagram and Their Microstructural Changes
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DOI: 10.3390/ma15051753
Abstract: The present work deals with the dilatometric study of a hot-rolled 0.2C3Mn1.5Si lean medium Mn steel, mainly suitable for the quenching and partitioning (Q&P) heat treatment in both hot-rolled or cold-rolled condition, subjected to a… read more here.
Keywords: temperature; dcct diagram; lean medium; medium steel ... See more keywords
Heterogeneous Multiphase Microstructure Formation through Partial Recrystallization of a Warm-Deformed Medium Mn Steel during High-Temperature Partitioning
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DOI: 10.3390/ma15207322
Abstract: A novel processing route is proposed to create a heterogeneous, multiphase structure in a medium Mn steel by incorporating partial quenching above the ambient, warm deformation, and partial recrystallization at high partitioning temperatures. The processing… read more here.
Keywords: partial recrystallization; microstructure; heterogeneous multiphase; medium steel ... See more keywords