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Fatigue behaviour of cast nickel based superalloy Inconel 792-5A at 700 °C
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SYSNO ASEP 0047271 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Fatigue behaviour of cast nickel based superalloy Inconel 792-5A at 700 °C Title Únavové chování lité niklové superslitiny Inconel 792-5A při 700 °C Author(s) Petrenec, Martin (UFM-A)
Man, Jiří (UFM-A) RID, ORCID
Obrtlík, Karel (UFM-A) RID, ORCID
Polák, Jaroslav (UFM-A) RID, ORCIDSource Title New Trends in Fatigue and Fracture-NT2F6. - Ljubljana : Narodna in univerzitetna knjižnica, Ljubljana, 2006 / Šuštaršič B. ; Jenko M. - ISBN 961-91448-5-6
S. 48Number of pages 1 s. Action New Trends in Fatigue and Fracture-NT2F6 Event date 14.05.2006-17.05.2006 VEvent location Brdo pri Kranju Country SI - Slovenia Event type WRD Language eng - English Country SI - Slovenia Keywords fatigue ; superalloy Inconel 792-5A ; dislocation structure Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects 1QS200410502 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GP106/05/P521 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation Cylindrical specimens of cast polycrystalline superalloy INCONEL 792-5A were cyclically strained under total strain control at 700 °C up to fracture. Cyclic hardening curves, cyclic stress-strain curve and fatigue life curve were documented. Dislocation structure was studied with the technique of oriented foils in transmission electron microscope. Scanning electron microscopy and atomic force microscopy were used to investigate surface relief topography. High amplitude straining is characterized by initial hardening followed by the clement hardening. Low amplitude cycling results in the stabilized stress response. Surface persistent slip markings and slip bands lying along {111} planes in the interior of grains cut both channels and precipitates. Experimental results concerning the surface relief and dislocation structure are used to discuss the stress-strain response. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2007
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