Mechanical and thermal stability of retained austenite in plastically deformed bainite-based TRIP-aided medium-Mn steels

• Autorzy: Kozłowska Aleksandra , Grajcar Adam , Janik Aleksandra , Radwański Krzysztof , Krupp Ulrich , Matus Krzysztof , Morawiec Mateusz

Identyfikatory

DOI

10.1007/s43452-021-00284-6

• Języki publikacji: EN

Abstrakty

EN

Advanced medium-Mn sheet steels show an opportunity for the development of cost-effective and light-weight automotive parts with improved safety and optimized environmental performance. These steels utilize the strain-induced martensitic transformation of metastable retained austenite to improve the strength–ductility balance. The improvement of mechanical performance is related to the tailored thermal and mechanical stabilities of retained austenite. The mechanical stability of retained austenite was estimated in static tensile tests over a wide temperature range from 20 °C to 200 °C. The thermal stability of retained austenite during heating at elevated temperatures was assessed by means of dilatometry. The phase composition and microstructure evolution were investigated by means of scanning electron microscopy, electron backscatter diffraction, X-ray diffraction and transmission electron microscopy techniques. It was shown that the retained austenite stability shows a pronounced temperature dependence and is also stimulated by the manganese addition in a 3–5% range.

Słowa kluczowe

EN

hot-rolled sheet; advanced medium-Mn steel; plastic deformation; retained austenite; strain induced martensite; phase transformation

PL

blacha; walcowanie na gorąco; odkształcenie plastyczne; stal

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2021
• Tom: Vol. 21, no. 3
• Strony: 807--820
• Opis fizyczny: Bibliogr. 40 poz., rys., wykr.

Twórcy

autor

Kozłowska Aleksandra

• Department of Engineering Materials and Biomaterials, Silesian University of Technology, 18a Konarskiego Street, 44-100 Gliwice, Poland

• https://orcid.org/0000-0001-9426-3052

autor

Grajcar Adam

• Department of Engineering Materials and Biomaterials, Silesian University of Technology, 18a Konarskiego Street, 44-100 Gliwice, Poland

autor

Janik Aleksandra

• Łukasiewicz Research Network-Institute for Ferrous Metallurgy, 12-14 K. Miarki Street, 44-100 Gliwice, Poland

autor

Radwański Krzysztof

• Łukasiewicz Research Network-Institute for Ferrous Metallurgy, 12-14 K. Miarki Street, 44-100 Gliwice, Poland

autor

Krupp Ulrich

• Steel Institute, RWTH Aachen University, Intzestraße 1, 52-072 Aachen, Germany

autor

Matus Krzysztof

• Department of Engineering Materials and Biomaterials, Silesian University of Technology, 18a Konarskiego Street, 44-100 Gliwice, Poland
• Materials Research Laboratory, Silesian University of Technology, 18a Konarskiego Street, 44-100 Gliwice, Poland

autor

Morawiec Mateusz

• Department of Engineering Materials and Biomaterials, Silesian University of Technology, 18a Konarskiego Street, 44-100 Gliwice, Poland
• Materials Research Laboratory, Silesian University of Technology, 18a Konarskiego Street, 44-100 Gliwice, Poland

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)