Original title: Interaction of Creep and High Cycle Fatigue of IN 713LC Superalloy
Authors: Horník, V. ; Šmíd, Miroslav ; Hutař, Pavel ; Kunz, Ludvík ; Hrbáček, K.
Document type: Papers
Conference/Event: MSMF8. International Conference on Materials Structure and Micromechanics of Fracture /8./, Brno (CZ), 20160627
Year: 2017
Language: eng
Abstract: The study deals with the interaction of creep and high cycle fatigue of cast polycrystalline nickel-based superalloy IN 713LC at high temperatures. Previous works indicated that creep lifetime of superalloy structures was un-affected or even slightly increased in the cases with superimposed vibrations. The reason for this behaviour was not well described up to now. Therefore, set of fatigue tests was conducted at high mean stresses level to observe this phenomenon. The mean stress was kept constant while the stress amplitudes were selected in order to measure wide range of conditions from pure creep to pure fatigue. Fractographic analysis by scanning electron microscopy (SEM) was done with the aim to identify governing damage mechanisms for particular test conditions as a preliminary evaluation of conducted tests.
Keywords: Creep-fatigue interaction; Fractography; High temperature; IN 713LC; Superalloy
Project no.: TA04011525 (CEP), LM2015069 (CEP)
Funding provider: GA TA ČR, GA MŠk
Host item entry: Materials Structure & Micromechanics of Fracture VIII, ISBN 978-3-03835-626-4, ISSN 1662-9779
Note: Související webová stránka: https://www.scientific.net/SSP.258.595

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0276114

Permalink: http://www.nusl.cz/ntk/nusl-373287


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