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Titel: Characterization and Analysis of Plastic Instability in an Ultrafine‐Grained Medium Mn TRIP Steel
VerfasserIn: Teng, Zhenjie
Wu, Haoran
Pramanik, Sudipta
Hoyer, Kay‐Peter
Schaper, Mirko
Zhang, Hanlong
Boller, Christian
Starke, Peter
Sprache: Englisch
Titel: Advanced Engineering Materials
Bandnummer: 24
Heft: 9
Verlag/Plattform: Wiley
Erscheinungsjahr: 2022
Freie Schlagwörter: magnetic Barkhausen noise
medium manganese steel
plastic instability
transmission electron microscopy
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: Herein, the mechanical and magnetic behavior of an ultrafine-grained (UFG) medium manganese (Mn) transformation-induced plasticity (TRIP) steel is focused on in its plastic instability. The in situ methods of digital image correlation (DIC) and magnetic Barkhausen noise (MBN) are used to macroscopically characterize the propagation of the Lüders band (stretcher–strain marks) and the evolution of MBN activities during quasistatic tensile deformation. The evolution of microstructure during the plastic instability is investigated ex situ using X-Ray diffraction (XRD) and transmission electron microscopy (TEM) for selected plastic strain states. It is showed in the results that the plastic instability of this steel is associated with an increase of hardness and enrichment of dislocation density, which can also amplify the MBN signal, while the derived coercivity behaves reversely on an overall trend due to work hardening. The different stress response of the medium Mn steel is closely related to the kinetic martensite microstructure, which in turn modifies the domain–structure response. Thus, the MBN can be used as a potential means for nondestructive evaluation (NDE) for the strengthening of the UFG medium Mn TRIP steel.
DOI der Erstveröffentlichung: 10.1002/adem.202200022
URL der Erstveröffentlichung: https://onlinelibrary.wiley.com/doi/10.1002/adem.202200022
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-376481
hdl:20.500.11880/34063
http://dx.doi.org/10.22028/D291-37648
ISSN: 1527-2648
1438-1656
Datum des Eintrags: 18-Okt-2022
Fakultät: NT - Naturwissenschaftlich- Technische Fakultät
Fachrichtung: NT - Materialwissenschaft und Werkstofftechnik
Professur: NT - Prof. Dr. Christian Boller
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes



Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons Creative Commons