000009298 001__ 9298
000009298 005__ 20141204092426.0
000009298 04107 $$aeng
000009298 046__ $$k12/05/2014
000009298 100__ $$aTobiáš, J.
000009298 24500 $$aLow cycle fatigue and analysis of the cyclic stress-strain response in superalloy Inconel 738LC

000009298 24630 $$n18.$$pEngineering Mechanics 2012
000009298 260__ $$bInstitute of Theoretical and Applied Mechanics, AS CR, Prague
000009298 506__ $$arestricted
000009298 520__ $$2eng$$aThe paper describes the results of fatigue behavior study on cast polycrystalline nickel based superalloy tested at 23 and 800 °C. Cylindrical specimens of Inconel 738LC were cyclically strained under total strain control to fracture and multiple step tests were performed to study the effect of temperature on the internal and effective cyclic stress components. Fatigue life curves were approximated by the Basquin law. The resulting curves were shifted to lower fatigue lives with increasing temperature. The evolution of the effective and internal stress components and effective elastic modules were derived from the hysteresis loops which were analyzed according to the statistical theory of hysteresis loop. Cyclic stressstrain response at both temperatures and the changes of internal and effective stress components were discussed in relation to microstructural parameters of the superalloy.

000009298 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009298 653__ $$alow cycle fatigue, Inconel 738LC, hardening/softening curves, cyclic stress-strain curve, fatigue life curve

000009298 7112_ $$aEngineering Mechanics 2012$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2012
000009298 720__ $$aTobiáš, J.$$iChlupová, A.$$iPetrenec, M.$$iPolák, J.
000009298 8560_ $$ffischerc@itam.cas.cz
000009298 8564_ $$s999160$$uhttps://invenio.itam.cas.cz/record/9298/files/302_Tobias_J-FT.pdf$$yOriginal version of the author's contribution as presented on CD, paper (No. 302).
000009298 962__ $$r8924
000009298 980__ $$aPAPER