Počet záznamů: 1
Fatigue behaviour and failure analysis of IN 713LC in high-cycle fatigue region
0361166 - UFM-A 2012 RIV SK eng J - Článek v odborném periodiku
Mintách, R. - Kunz, Ludvík - Bokůvka, O.
Fatigue behaviour and failure analysis of IN 713LC in high-cycle fatigue region.
Materiálové inžinierstvo - Materials Engineering. Roč. 16, 3a (2009), s. 37-40 ISSN 1335-0803
Grant CEP: GA MPO FT-TA4/023
Výzkumný záměr: CEZ:AV0Z20410507
Klíčová slova: Ni base superalloy * casting defect * high-cycle fatigue
Kód oboru RIV: JG - Hutnictví, kovové materiály
High-cycle fatigue/creep behaviour of cast nickel base superalloy IN 713LC was experimentally examined at 800 oC in air. Load controlled cycling with tensile mean stress was used. The experimental results showed that small cyclic stress component superimposed on the mean stress does not reduce the lifetime when compared to the pure creep life. The time to fracture increases with increasing stress amplitude; the reverse of this trend is related to the change of damage mode from ductile to fatigue dominated. High scatter of lifetime was found and discussed in terms of the effect of casting defects and by dendritic segregation in castings
Trvalý link: http://hdl.handle.net/11104/0198553