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Cyclic plasticity and internal dislocation structure in two-phase alloy
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SYSNO ASEP 0352788 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cyclic plasticity and internal dislocation structure in two-phase alloy Author(s) Polák, Jaroslav (UFM-A) RID, ORCID
Petrenec, Martin (UFM-A)
Kruml, Tomáš (UFM-A) RID, ORCID
Tobiáš, Jiří (UFM-A)Number of authors 4 Source Title Journal of Physics: Conference Series. - : Institute of Physics Publishing - ISSN 1742-6588
Roč. 240, - (2010), 012045Number of pages 4 s. Action ICSMA-15 (15th International Conference on the Strength of Materials) Event date 16.08.2009-21.08.2009 VEvent location Dresden Country DE - Germany Event type WRD Language eng - English Country GB - United Kingdom Keywords cyclic plasticity ; dislocation structure ; duplex steel Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects IAA100480704 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA106/09/1954 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000286515800045 DOI doi:10.1088/1742-6596/240/1/012045 Annotation Austenitic-ferritic stainless steel has been cycled in symmetrical push-pull regime with constant strain rate and different strain amplitudes. Hysteresis loops were recorded and analysed. The plot of the second derivative of the half-loop vs. relative strain shows one peak for low amplitude straining corresponding to the cyclic deformation of softer phase, austenite. With increasing strain amplitude second peak appears and corresponds to the cyclic deformation of the harder phase, ferrite. Transmission electron microscopy study revealed parallel bands in austenite and initial virgin dislocation structure in ferrite at low amplitude while cell structure in austenite and secondary wall structure in ferrite at high amplitude. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
Number of the records: 1