Specific behavior of high-manganese steels in the context of temperature increase during dynamic deformation

Specific behavior of high-manganese steels in the context of temperature increase during dynamic deformation

JABŁOŃSKA Magdalena B., GRONOSTAJSKI Zbigniew, TKOCZ Marek, JASIAK Katarzyna, KOWALCZYK Karolina, SKWARSKI Mateusz, KOSTKA Michał

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Abstract. In recent years, a development of AHSS steels for manufacturing parts for the automotive industry is the observed trend. The high-manganese steels with aluminium and silicon addition, exhibiting twinning induced plasticity (TWIP) effect, are one of the most interesting modern materials, due to their unique combination of both very good strength and great ductility. However, the material behaviour during plastic deformation depends not only on the chemical composition but also on deformation conditions, inter alia, strain rate and temperature. TWIP steels can be used for production of energy-absorbing parts, therefore it is very important to analyse their deformation behaviour at high strain rates. The paper presents the effect of deformation in quasi-static and dynamic conditions on the microstructure of an experimental TWIP steel. The experiments were performed on tensile testing machine and on the flywheel machine. The microstructure was analyzed by optical and scanning transmission electron microscopy. Thanks to the measurements during the quasi-static test and numerical simulations of both tensile tests, the temperature increase was determined in the sample region from which the sections for microstructural studies were taken. It was found that the temperature increase in dynamic conditions can affect the microstructure evolution in the investigated TWIP steel.

High-Manganese Steel, TWIP, Dynamic Deformation, Microstructure, Temperature, Twinning

Published online 4/19/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: JABŁOŃSKA Magdalena B., GRONOSTAJSKI Zbigniew, TKOCZ Marek, JASIAK Katarzyna, KOWALCZYK Karolina, SKWARSKI Mateusz, KOSTKA Michał, Specific behavior of high-manganese steels in the context of temperature increase during dynamic deformation, Materials Research Proceedings, Vol. 28, pp 839-846, 2023

DOI: https://doi.org/10.21741/9781644902479-92

The article was published as article 92 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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