Analysis of Effective and Internal Cyclic Stress Components in the Inconel Superalloy Fatigued at Elevated Temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00387035" target="_blank" >RIV/68081723:_____/11:00387035 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.278.393" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMR.278.393</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.278.393" target="_blank" >10.4028/www.scientific.net/AMR.278.393</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of Effective and Internal Cyclic Stress Components in the Inconel Superalloy Fatigued at Elevated Temperature

Popis výsledku v původním jazyce

Cyclic multiple step test in strain control have been performed on cylindrical specimens of cast polycrystalline Inconel 738LC and 792-5A nickel-base superalloys at 800 °C in laboratory atmosphere. Selected hysteresis loops were derived and analysed according to the statistical theory of hysteresis loop. The effective and internal stress components were possible to determine. The effective stress of ?´ precipitate has significant influence on stress-strain response of studied materials. Therefore IN 792-5A exhibits higher stress amplitudes than IN 738LC at approximately same total strain amplitude values, because of significantly higher effective stress of ?´. Cyclic hardening/softening curves and shortened cyclic stress-strain curves were obtained. Cyclic hardening/softening behaviour depends on strain amplitude. Low amplitude straining was characterised by saturation of the stress amplitude. In high amplitude straining slight softening was found. The shortened cyclic stress-strain cu

Název v anglickém jazyce

Analysis of Effective and Internal Cyclic Stress Components in the Inconel Superalloy Fatigued at Elevated Temperature

Popis výsledku anglicky

Cyclic multiple step test in strain control have been performed on cylindrical specimens of cast polycrystalline Inconel 738LC and 792-5A nickel-base superalloys at 800 °C in laboratory atmosphere. Selected hysteresis loops were derived and analysed according to the statistical theory of hysteresis loop. The effective and internal stress components were possible to determine. The effective stress of ?´ precipitate has significant influence on stress-strain response of studied materials. Therefore IN 792-5A exhibits higher stress amplitudes than IN 738LC at approximately same total strain amplitude values, because of significantly higher effective stress of ?´. Cyclic hardening/softening curves and shortened cyclic stress-strain curves were obtained. Cyclic hardening/softening behaviour depends on strain amplitude. Low amplitude straining was characterised by saturation of the stress amplitude. In high amplitude straining slight softening was found. The shortened cyclic stress-strain cu

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F08%2F1631" target="_blank" >GA106/08/1631: Mechanismus cyklické deformace a únavová životnost pokrokových vícefázových materiálů pro vysokoteplotní aplikace</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Advanced Materials Research

ISSN

1022-6680

e-ISSN

—

Svazek periodika

278

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

393-398

Kód UT WoS článku

000303548400066

EID výsledku v databázi Scopus

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