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Deformation behaviour of TRIP steel monitoring by in-situ neutrondiffraction
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SYSNO ASEP 0358981 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Deformation behaviour of TRIP steel monitoring by in-situ neutrondiffraction Author(s) Zrnik, J. (CZ)
Muránsky, O. (CZ)
Šittner, Petr (FZU-D) RID, ORCID
Oliver, E.C. (GB)Source Title Key Engineering Materials. - : Scientific.Net - ISSN 1662-9795
Roč. 465, č. 1 (2011), s. 390-394Number of pages 5 s. Language eng - English Country CH - Switzerland Keywords TRIP steel ; austenite conditioning ; retained austenite ; neutron diffraction Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GAP107/10/0824 GA ČR - Czech Science Foundation (CSF) GAP108/10/1296 GA ČR - Czech Science Foundation (CSF) IAA200100627 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z10100520 - FZU-D (2005-2011) DOI 10.4028/www.scientific.net/KEM.465.390 Annotation The paper presents results of in-situ neutron diffraction experiments aimed on monitoring the phase evolution and load distribution in TRIP steel when subjected to tensile loading. Tensile deformation behaviour of TRIP steel with different initial microstructures showed that the applied tensile load is redistributed at the yield point and the harder retained austenite (Feγ) bears larger load then ferrite (Feα) matrix. After load partioning is finished, macroscopic yielding comes through simultaneous activity of the martensite transformation (in the austenite) and plastic deformation process in ferrite. The steel with higher volume fraction of retained austenite and less stronger ferrite appears to be a better TRIP steel having efficient structure for better plasticity purpose. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
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