Effect of Temperature on the Cyclic Stress Components of Gamma ? TiAl Based Alloy with Niobium Alloying

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00435835" target="_blank" >RIV/68081723:_____/11:00435835 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.465.447" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.465.447</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.465.447" target="_blank" >10.4028/www.scientific.net/KEM.465.447</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Temperature on the Cyclic Stress Components of Gamma ? TiAl Based Alloy with Niobium Alloying

Popis výsledku v původním jazyce

Cyclic strain controlled multiple step tests have been performed on cylindrical specimens of cast ?-TiAl based alloy with 2 at.% of Nb with nearly lamellar microstructure at 23 and 750 °C in laboratory atmosphere with the aim to study the effect of temperature on the internal and effective cyclic stress components. At these temperatures, the evolution of the effective and internal stress components and the effective elastic moduli were derived from the hysteresis loops analyzed according to the statistical theory of hysteresis loop. Cyclic hardening/softening curves and cyclic stress-strain curves were obtained at both temperatures. Cyclic stress?strain curves measured using short-cut procedure coincide with the basic cyclic stress-strain curve. They are shifted to lower stresses with increasing temperature. Cyclic stress-strain response at both temperatures was compared and discussed in relation to changes of internal and effective stress components and dislocation modes referred in l

Název v anglickém jazyce

Effect of Temperature on the Cyclic Stress Components of Gamma ? TiAl Based Alloy with Niobium Alloying

Popis výsledku anglicky

Cyclic strain controlled multiple step tests have been performed on cylindrical specimens of cast ?-TiAl based alloy with 2 at.% of Nb with nearly lamellar microstructure at 23 and 750 °C in laboratory atmosphere with the aim to study the effect of temperature on the internal and effective cyclic stress components. At these temperatures, the evolution of the effective and internal stress components and the effective elastic moduli were derived from the hysteresis loops analyzed according to the statistical theory of hysteresis loop. Cyclic hardening/softening curves and cyclic stress-strain curves were obtained at both temperatures. Cyclic stress?strain curves measured using short-cut procedure coincide with the basic cyclic stress-strain curve. They are shifted to lower stresses with increasing temperature. Cyclic stress-strain response at both temperatures was compared and discussed in relation to changes of internal and effective stress components and dislocation modes referred in l

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

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 statě ve sborníku

Materials Structure & Micromechanics of Fracture VI

ISBN

978-3-03785-006-0

ISSN

1013-9826

e-ISSN

—

Počet stran výsledku

4

Strana od-do

447-450

Název nakladatele

Trans Tech Publications

Místo vydání

Zurich

Místo konání akce

Brno

Datum konání akce

28. 6. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000291704700104