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A review of the processing, microstructure and property relationships in medium Mn steels
International Materials Reviews, 2023Medium Mn steels are an emerging class of 3rd generation advanced high-strength steels. These steels have received significant attention due to their high strengths, large ductilities and also lower cost compared to their predecessor high Mn Twinning Induced Plasticity (TWIP) steels. Additionally, medium Mn steels have been found to exhibit TWIP and/or
T. W. J. Kwok, D. Dye
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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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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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Chemistry and Properties of Medium-Mn Two-Stage TRIP Steels
Metallurgical and Materials Transactions A, 2018Eight medium manganese steels ranging from 10 to 15 wt pct Mn have been produced with varying levels of aluminum, silicon, and carbon to create steels with varying TRIP (transformation-induced plasticity) character. Alloy chemistries were formulated to produce a range of intrinsic stacking fault energies (ISFE) from − 2.2 to 13.3 mJ/m2 when calculated ...
Field, Daniel M. +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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Formability study of the third generation automotive medium-Mn steel
2018 IEEE International Conference on Mechatronics and Automation (ICMA), 2018Third-generation advanced automotive medium-Mn steel, which can replace 22MnB5 steel, was newly developed to improve the lightweight and crashworthiness of automotive. Studies on the formability and simulation method of medium-Mn steel have just been initiated.
Guojun Zheng +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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Medium Mn Dual-Phase Nanotwinned Steel
Metallurgical and Materials Transactions A, 2022X. K. Shang, Q. W. Guan, B. B. He
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Austenite stability in medium Mn Q&P steels
2021There is a high demand in automotive industry for better fuel efficiency, which is a driving force for the development of 3rd generation advanced high strength steels (AHSS) e.g. quenching and partitioning (Q&P) steels. Medium Mn Q&P steels containing 5 – 10 % Mn have been broadly studied with promising results, but a high Mn content may impose ...
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