Number of the records: 1  

Cyclic plasticity and internal dislocation structure in two-phase alloy

  1. 1.
    SYSNO ASEP0352788
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleCyclic 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 authors4
    Source TitleJournal of Physics: Conference Series. - : Institute of Physics Publishing - ISSN 1742-6588
    Roč. 240, - (2010), 012045
    Number of pages4 s.
    ActionICSMA-15 (15th International Conference on the Strength of Materials)
    Event date16.08.2009-21.08.2009
    VEvent locationDresden
    CountryDE - Germany
    Event typeWRD
    Languageeng - English
    CountryGB - United Kingdom
    Keywordscyclic plasticity ; dislocation structure ; duplex steel
    Subject RIVJL - Materials Fatigue, Friction Mechanics
    R&D ProjectsIAA100480704 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
    GA106/09/1954 GA ČR - Czech Science Foundation (CSF)
    CEZAV0Z20410507 - UFM-A (2005-2011)
    UT WOS000286515800045
    DOIdoi:10.1088/1742-6596/240/1/012045
    AnnotationAustenitic-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.
    WorkplaceInstitute of Physics of Materials
    ContactYvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
    Year of Publishing2011
Number of the records: 1  

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