Original title: High cycle fatigue of bearing steel
Translated title: Vysokocyklová únava ložiskové oceli
Authors: Kunz, Ludvík ; Činčala, M.
Document type: Papers
Conference/Event: Fracture damage of structural parts., Ostrava (CZ), 2004-09-06 / 2004-09-09
Year: 2004
Language: eng
Abstract: [eng] [cze]
S-N curve of 14109 bearing steel was experimentally determined in symmetrical tension-compression in the interval of 10 to 5 to 10 to 8 cycles to fracture. Continuous increase of the number of cycles to fracture with decreasing stress amplitude was observed. Large scatter of experimental data is related to the initiation of fatigue cracks on internal defects of Al2O3 and TiN type. Experimentálně byla stanovena S-N křivka ložiskové oceli 14109 při zatěžování v symetrickém tahu-tlaku v intervalu od 10 na patou do 10 na osmou cyklů. S klesající amplitudou napětí byl pozorován spojitý růst únavové životnosti. Velký rozptyl experimentálních hodnot je spojen s iniciací únavových trhlin na vnitřních defektech typu Al2O3 a TiN.
Keywords: bearing steel; fatigue limit; high cycle fatigue
Project no.: CEZ:AV0Z2041904 (CEP), IBS2041001 (CEP)
Funding provider: GA AV ČR
Host item entry: Fracture damage of structural parts, ISBN 80-248-0615-0

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/11104/0015480

Permalink: http://www.nusl.cz/ntk/nusl-20413


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Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers