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Phase-Specific Strain Hardening and Load Partitioning of Cold Rolled Duplex Stainless Steel X2CrNiN23-4

Simon, Nicola; Krause, Maximilian; Heinemann, Paul; Erdle, Hannes; Böhlke, Thomas; Gibmeier, Jens

Multi-phase materials often times consist of constituents with high contrasts in phase-specific mechanical properties. Here, even after homogeneous plastic deformation phase-specific residual stresses develop that may affect the components behaviour in service. For numerical simulation of phase-specific residual stresses, knowledge of the particular phase-specific strain hardening behaviour is essential. In this study, the strain hardening of ferrite and austenite in cold rolled duplex stainless steel of type X2CrNiN23-4 is investigated. By means of X-ray diffraction, the phase-specific load partitioning and residual stress evolution are analysed for uniaxial load application in three directions within the sheets plane, taking into account the sheet metals phase specific anisotropy. In order to assess the necessity for experimental determination of anisotropic phase specific behaviour, the strain hardening parameters, derived from only one loading direction, are implemented in a mean-field approach for prediction of phase-specific stresses. A simplified simulation approach is applied that only considers macroscopic plastic anisotropy and results are compared to experimental findings. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000125422
Veröffentlicht am 29.10.2020
DOI: 10.3390/cryst10110976
Zitationen: 3
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Mechanik (ITM)
Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 2073-4352
KITopen-ID: 1000125422
Erschienen in Crystals
Verlag MDPI
Band 10
Heft 11
Seiten Art.-Nr. 976
Vorab online veröffentlicht am 27.10.2020
Schlagwörter duplex stainless steel; load partitioning; micro residual stresses; mean-field homogenisation
Nachgewiesen in Scopus
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