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Fatigue behavior of coated and uncoated cast Inconel 713LC at 800 °C
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SYSNO ASEP 0386249 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Fatigue behavior of coated and uncoated cast Inconel 713LC at 800 °C Author(s) Obrtlík, Karel (UFM-A) RID, ORCID
Pospíšilová, S. (CZ)
Juliš, M. (CZ)
Podrábský, T. (CZ)
Polák, Jaroslav (UFM-A) RID, ORCIDNumber of authors 5 Source Title International Journal of Fatigue. - : Elsevier - ISSN 0142-1123
Roč. 41, č. 1 (2012), s. 101-106Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords High temperature fatigue ; Diffusion coating ; superalloy Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GAP107/11/2065 GA ČR - Czech Science Foundation (CSF) Institutional support UFM-A - RVO:68081723 CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000303486800015 DOI https://doi.org/10.1016/j.ijfatigue.2011.12.010 Annotation Cylindrical specimens of Inconel 713LC in as-received condition and with surface treatment by Al diffusion coating were cyclically strained under strain control at 800 °C in air. Surface treated layer was characterized and the hardness depth profile was measured. Cyclic stress-strain response and fatigue life of both materials were assessed. The stress response of the coated superalloy specimens is lower in comparison with the untreated specimens. Beneficial effect of surface treatment on the Manson-Coffin curve is documented. Specimen sectioning and fracture surface studies revealed fatigue damage mechanisms both in coated and uncoated specimens. Propagation path of the principal crack is predominantly interdendritic. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2013
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