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Austenite growth and stability in medium Mn, medium Al Fe-C-Mn-Al steels
Computational Materials Science, 2016Abstract Fe-C-Mn-Al alloys are promising materials to respond to the new European regulations on car CO2 emissions. The austenite growth kinetics for a mid-Mn, mid-Al alloy have been investigated by DICTRA calculations. Our results establish that Al only affects the thermodynamic properties of the system, its diffusivity does not influence the ...
Jonathan Emo +2 more
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Extraordinary Lüders-strain-rate in medium Mn steels
Materialia, 2019Abstract An innovative experimental means based on high-speed digital image correlation (DIC) is employed in this work to investigate the Luders band formation mechanisms in a medium Mn transformation-induced plasticity (TRIP) steel, allowing precise assessment of local strain rate inside the Luders band. The stress-controlled instead of conventional
X.G. Wang +4 more
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Effects of Mn Segregations on Intergranular Fracture in a Medium‐Mn Low‐Density Steel
steel research international, 2022Al‐bearing medium‐Mn low‐density steels possess great potential in the automotive industry because of their excellent mechanical properties based on transformation‐induced plasticity and low specific weight. Reducing the austenite stability against deformation‐induced martensitic transformation enables a high strain‐hardening capacity to be obtained ...
Heechan Jung +5 more
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Genesis of plasticity-induced serrated metal flow in medium-Mn steel
Calphad, 2020An excellent strength-ductility combination offered by martensite-austenite microstructure in medium-Mn steels draws special attention for automotive applications. However, yielding of the steel is often compromised in the form of serration, with a jerky metal flow and deformation banding, by the reason yet to be settled.
N. Bhowmik +4 more
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Low-temperature superplasticity of Si-added medium-Mn steel
Materials Research Proceedings, 2023Abstract. Grain boundary sliding, a deformation mechanism of superplasticity, occurs only at high temperatures, making it difficult for superplastic steels to be practically applied due to high energy consumption and surface oxidation. Therefore, in the present study, we introduce a newly developed Si-added medium-Mn steel, which can be ...
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Hardenability of Medium Carbon Cr-Mn-Mo Alloyed Steels
Materials Science Forum, 2019Three medium carbon Cr-Mn-Mo structural steels with different content of alloying elements were studied. The austenite transformation during continuous cooling was investigated using dilatometer and metallographic analysis. The CCT diagrams were plotted showing the effect of the increased alloying elements content and B and Nb micro-alloying on the ...
Mikhail V. Maisuradze, Maksim A. Ryzhkov
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Relative effect of C and Mn on strength-toughness of medium Mn steels
Materials Science and Technology, 2019In order to find an alternative choice for structural load-bearing components, an effort was made to improve the impact toughness of medium Mn steel through inter-critical annealing treatment without significant reduction in strength. Besides, the relative effect of C and Mn contents on microstructure and mechanical properties of medium Mn steels was ...
Ankita Bhattacharya +3 more
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Medium Mn Dual-Phase Nanotwinned Steel
Metallurgical and Materials Transactions A, 2022X. K. Shang, Q. W. Guan, B. B. He
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Impact Toughness of Medium‐Mn Transformation‐Induced Plasticity‐Aided Steels
steel research international, 2015The impact toughness of 0.2% C–1.5% Si–(1.5–5.0)% Mn (mass%) transformation‐induced plasticity (TRIP)‐aided steels with bainitic ferrite and/or martensite structure matrices produced by isothermal transformation process is investigated for automotive body applications.
Koh‐ichi Sugimoto +2 more
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Candidates for the Third Generation: Medium Mn Steels
2015Medium (4–10 %) Mn steel is considered as one of the candidates that can meet requirements of steels of third generation. This chapter presents the main factors affecting the combination of tensile properties of med MN steels: parameters of annealing, amount and stability of austenite, and Mn content.
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