Date
2023-06-21Author
Liehr, AlexanderWegener, ThomasDegener, SebastianBolender, ArtjomMöller, NicoNiendorf, ThomasMetadata
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Artikel (Publikationen im Open Access gefördert durch die UB)
Experimental Analysis of the Stability of Retained Austenite in a Low-Alloy 42CrSi Steel after Different Quenching and Partitioning Heat Treatments
Abstract
Quenching and partitioning (Q&P) steels are characterized by an excellent combination of strength and ductility, opening up great potentials for advanced lightweight components. The Q&P treatment results in microstructures with a martensitic matrix being responsible for increased strength whereas interstitially enriched metastable retained austenite (RA) contributes to excellent ductility. Herein, a comprehensive experimental characterization of microstructure evolution and austenite stability is carried out on a 42CrSi steel being subjected to different Q&P treatments. The microstructure of both conditions is characterized by scanning electron microscopy as well as X-ray diffraction (XRD) phase analysis. Besides macroscopic standard tensile tests, RA evolution under tensile loading is investigated by in situ XRD using synchrotron and laboratory methods. As a result of different quenching temperatures, the two conditions considered are characterized by different RA contents and morphologies, resulting in different strain hardening behaviors as well as strength and ductility values under tensile loading. In situ synchrotron measurements show differences in the transformation kinetics being rationalized by the different morphologies of the RA. Eventually, the evolution of the phase specific stresses can be explained by the well-known Masing model.
Citation
In: Advanced Engineering Materials Volume 25 / Issue 17 (2023-06-21) eissn:1527-2648Sponsorship
Gefördert im Rahmen des Projekts DEALCollections
Publikationen (Fachgebiet Metallische Werkstoffe)Artikel (Publikationen im Open Access gefördert durch die UB)
Citation
@article{doi:10.17170/kobra-202310188873,
author={Liehr, Alexander and Wegener, Thomas and Degener, Sebastian and Bolender, Artjom and Möller, Nico and Niendorf, Thomas},
title={Experimental Analysis of the Stability of Retained Austenite in a Low-Alloy 42CrSi Steel after Different Quenching and Partitioning Heat Treatments},
journal={Advanced Engineering Materials},
year={2023}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2023$n2023 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15115 3000 Liehr, Alexander 3010 Wegener, Thomas 3010 Degener, Sebastian 3010 Bolender, Artjom 3010 Möller, Nico 3010 Niendorf, Thomas 4000 Experimental Analysis of the Stability of Retained Austenite in a Low-Alloy 42CrSi Steel after Different Quenching and Partitioning Heat Treatments / Liehr, Alexander 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15115=x R 4204 \$dAufsatz 4170 5550 {{In situ}} 5550 {{Mikrostruktur}} 5550 {{Synchrotron}} 5550 {{Röntgenbeugung}} 5550 {{Austenit}} 5550 {{Stahl}} 7136 ##0##http://hdl.handle.net/123456789/15115
2023-10-18T14:33:36Z 2023-10-18T14:33:36Z 2023-06-21 doi:10.17170/kobra-202310188873 http://hdl.handle.net/123456789/15115 Gefördert im Rahmen des Projekts DEAL eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ in situ characterizations microstructures quenching and partitioning steels synchrotron diffraction transformation-induced plasticity effects X-ray diffraction 600 Experimental Analysis of the Stability of Retained Austenite in a Low-Alloy 42CrSi Steel after Different Quenching and Partitioning Heat Treatments Aufsatz Quenching and partitioning (Q&P) steels are characterized by an excellent combination of strength and ductility, opening up great potentials for advanced lightweight components. The Q&P treatment results in microstructures with a martensitic matrix being responsible for increased strength whereas interstitially enriched metastable retained austenite (RA) contributes to excellent ductility. Herein, a comprehensive experimental characterization of microstructure evolution and austenite stability is carried out on a 42CrSi steel being subjected to different Q&P treatments. The microstructure of both conditions is characterized by scanning electron microscopy as well as X-ray diffraction (XRD) phase analysis. Besides macroscopic standard tensile tests, RA evolution under tensile loading is investigated by in situ XRD using synchrotron and laboratory methods. As a result of different quenching temperatures, the two conditions considered are characterized by different RA contents and morphologies, resulting in different strain hardening behaviors as well as strength and ductility values under tensile loading. In situ synchrotron measurements show differences in the transformation kinetics being rationalized by the different morphologies of the RA. Eventually, the evolution of the phase specific stresses can be explained by the well-known Masing model. open access Liehr, Alexander Wegener, Thomas Degener, Sebastian Bolender, Artjom Möller, Nico Niendorf, Thomas 16 Seiten doi:10.1002/adem.202300380 In situ Mikrostruktur Synchrotron Röntgenbeugung Austenit Stahl publishedVersion eissn:1527-2648 Issue 17 Advanced Engineering Materials Volume 25 false 2300380
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