About: Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures

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About: Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The low-cycle fatigue properties of TiAl alloys with 2 at.% and 7 at.% of Nb with nearly lamellar microstructure were studied at room temperature and 750 degrees C. Cyclic hardening/softening curves, cyclic stress-strain curves (CSSC) and fatigue life curves were obtained at both temperatures as well as monotonic tensile properties. Both materials show stable cyclic response at 750 degrees C. At room temperature, significant cyclic hardening characteristic for 2 at.% Nb alloy is not observed for 7 at.% Nb alloy. This difference is attributed to higher Nb content which increases the stacking fault energy and thus prevents intensive twinning. Parameters of the CSSC, the Manson-Coffin law and the Basquin law were determined. The cyclic strength of the alloy with 7 at.% Nb is substantially higher in comparison with 2 at.% Nb, probably due to lower thickness of the lamellas. The low-cycle fatigue properties of TiAl alloys with 2 at.% and 7 at.% of Nb with nearly lamellar microstructure were studied at room temperature and 750 degrees C. Cyclic hardening/softening curves, cyclic stress-strain curves (CSSC) and fatigue life curves were obtained at both temperatures as well as monotonic tensile properties. Both materials show stable cyclic response at 750 degrees C. At room temperature, significant cyclic hardening characteristic for 2 at.% Nb alloy is not observed for 7 at.% Nb alloy. This difference is attributed to higher Nb content which increases the stacking fault energy and thus prevents intensive twinning. Parameters of the CSSC, the Manson-Coffin law and the Basquin law were determined. The cyclic strength of the alloy with 7 at.% Nb is substantially higher in comparison with 2 at.% Nb, probably due to lower thickness of the lamellas. (en)
Title	Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures (en)
skos:prefLabel	Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures (en)
skos:notation	RIV/68081723:_____/10:00346327!RIV11-GA0-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/07/0762), P(GA106/08/1631), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Petrenec, Martin Obrtlík, Karel Polák, Jaroslav Kruml, Tomáš Buček, 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	263724
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/10:00346327
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Low cycle fatigue; lamellar TiAl alloy; fracture surface (en)
http://linked.open.../riv/klicoveSlovo	lamellar TiAl alloy Low cycle fatigue fracture surface
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[0E7A5BF0EFE3]
http://linked.open...i/riv/nazevZdroje	Procedia Engineering
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Structure, properties and metallurgy of near-gamma TiAl alloys Mechanism of cyclic deformation and fatigue life of advanced multiphase materials for high-temperature applications
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	2
http://linked.open...iv/tvurceVysledku	Buček, Petr Kruml, Tomáš Obrtlík, Karel Petrenec, Martin Polák, Jaroslav
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	1877-7058
number of pages	9 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures

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