About: Effect of structure on creep behaviour of superalloy single crystals

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Creep behaviour of two types of superalloy single crystals of the orientation <001> was studied at 850 °C in air to assess their relative suitability for turbine blade applications: CMSX-4 and its potential low cost alternative, CM186LC. The chemical composition of these two superalloys is similar, their microstructure, especially gamma/gamma’ distribution, differs substantially. At the same applied stress, the time to failure of CM186LC is shorter than that of CMSX-4. Simultaneously, the creep rate of CM186LC is higher than that of CMSX-4 for the whole lifetime. This is attributed to easier activation of dislocation sources within large gamma’particles present in CM186LC crystals. Creep behaviour of two types of superalloy single crystals of the orientation <001> was studied at 850 °C in air to assess their relative suitability for turbine blade applications: CMSX-4 and its potential low cost alternative, CM186LC. The chemical composition of these two superalloys is similar, their microstructure, especially gamma/gamma’ distribution, differs substantially. At the same applied stress, the time to failure of CM186LC is shorter than that of CMSX-4. Simultaneously, the creep rate of CM186LC is higher than that of CMSX-4 for the whole lifetime. This is attributed to easier activation of dislocation sources within large gamma’particles present in CM186LC crystals. (en) Creepové chování monokrystalů orientace <001> dvou superslitin bylo studováno za účelem posouzení jejich vhodnosti pro použití na lopatky spalovacích turbin: jmenovitě slitina CMSX-4 a její levnější alternativa CM186LC. Chemické složení těchto superslitin je podobné, jejich mikrostruktura, zejména gama/gama' rozdělení, se liší podstatně. Při stejném aplikovaném napětí je doba do lomu pro CM186LC kratší, než pro CMSX-4. Současně je rychlost creepu vyšší pro CM186LC. To je přisouzeno snadnější aktivaci dislokačních zdrojů ve velkých gama' částicích, které jsou přítomny ve slitině CM186LC. (cs)
Title	Effect of structure on creep behaviour of superalloy single crystals Effect of structure on creep behaviour of superalloy single crystals (en) Vliv struktury na creepové chování monokrystalů superslitin (cs)
skos:prefLabel	Effect of structure on creep behaviour of superalloy single crystals Effect of structure on creep behaviour of superalloy single crystals (en) Vliv struktury na creepové chování monokrystalů superslitin (cs)
skos:notation	RIV/68081723:_____/05:00024121!RIV06-AV0-68081723
http://linked.open.../vavai/riv/strany	267;270
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IBS2041001), Z(AV0Z2041904)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2006
http://linked.open...aciTvurceVysledku	Čadek, Josef Svoboda, Milan Kunz, Ludvík Lukáš, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	519454
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/05:00024121
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Superalloys CMSX-4 and CM186LC (en)
http://linked.open.../riv/klicoveSlovo	Superalloys CMSX-4 and CM186LC
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[82A811CD8D0F]
http://linked.open...i/riv/nazevZdroje	Materials Science Forum
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Degradation of properties and lifetime assessment of engineering materials under mechanical loading
http://linked.open...UplatneniVysledku	2005
http://linked.open...v/svazekPeriodika	482
http://linked.open...iv/tvurceVysledku	Kunz, Ludvík Lukáš, Petr Svoboda, Milan Čadek, Josef
http://linked.open...n/vavai/riv/zamer	Behavior and properties of metallic and non-metallic materials in relation to their structure, research on processes leading to degradation of material quality
issn	0255-5476
number of pages	4 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Effect of structure on creep behaviour of superalloy single crystals

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