About: The Influence of Carbon on Small Punch Testing of Niobium-alloyed Iron Aluminide

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Iron-aluminium-based alloys are promising candidates for various applications at high temperatures. Unfortunately, creep resistance of these alloys is relatively low. It could be improved by introducing second-phase particles, e. g., by additions of carbon and carbide forming elements. On the other hand, the presence of carbides can influence ductility of the alloys with enhanced creep resistance. In the present study, the effect of niobium and carbon additions on the ductility of a Fe3Al-type alloy is investigated. The constant-deflection mode of the small punch test is used to compare fracture properties and their temperature dependence in the alloy with different amounts of carbon. It is shown that both the fracture energy and the deflection at maximum load are greater in the alloy with the greater carbon and that the ductility is not reduced by the presence of niobium carbides. The ductile-to-brittle transition temperature closely correlates with the temperature of phase transformation from D03 to B2 lattice. This temperature is greater in the alloy with lower carbon owing to greater amount of niobium solved in Fe3Al lattice. Complicated temperature dependence of the yield force can be ascribed to the flow stress anomaly inherent for this type of intermetallic alloys Iron-aluminium-based alloys are promising candidates for various applications at high temperatures. Unfortunately, creep resistance of these alloys is relatively low. It could be improved by introducing second-phase particles, e. g., by additions of carbon and carbide forming elements. On the other hand, the presence of carbides can influence ductility of the alloys with enhanced creep resistance. In the present study, the effect of niobium and carbon additions on the ductility of a Fe3Al-type alloy is investigated. The constant-deflection mode of the small punch test is used to compare fracture properties and their temperature dependence in the alloy with different amounts of carbon. It is shown that both the fracture energy and the deflection at maximum load are greater in the alloy with the greater carbon and that the ductility is not reduced by the presence of niobium carbides. The ductile-to-brittle transition temperature closely correlates with the temperature of phase transformation from D03 to B2 lattice. This temperature is greater in the alloy with lower carbon owing to greater amount of niobium solved in Fe3Al lattice. Complicated temperature dependence of the yield force can be ascribed to the flow stress anomaly inherent for this type of intermetallic alloys (en)
Title	The Influence of Carbon on Small Punch Testing of Niobium-alloyed Iron Aluminide The Influence of Carbon on Small Punch Testing of Niobium-alloyed Iron Aluminide (en)
skos:prefLabel	The Influence of Carbon on Small Punch Testing of Niobium-alloyed Iron Aluminide The Influence of Carbon on Small Punch Testing of Niobium-alloyed Iron Aluminide (en)
skos:notation	RIV/68081723:_____/12:00385345!RIV13-GA0-68081723
http://linked.open...avai/predkladatel	Ústav fyziky materiálů AVČR, v.v.i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/12/1452)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Dobeš, Ferdinand Dymáček, Petr
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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	141347
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/12:00385345
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Iron aluminides; ductility; small punch (en)
http://linked.open.../riv/klicoveSlovo	ductility Iron aluminides small punch
http://linked.open...ontrolniKodProRIV	[3DC37EE3E3E9]
http://linked.open...v/mistoKonaniAkce	Ostrava
http://linked.open...i/riv/mistoVydani	Ostrava - Vítkovice
http://linked.open...i/riv/nazevZdroje	Determination of Mechanical Properties of Materials by Small Punch and Other Miniature Techniques - Conference Proceedings
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Optimizing the high temperature mechanical properties of iron aluminides of Fe3Al type with carbide forming elements
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Dobeš, Ferdinand Dymáček, Petr
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-10-02 (xsd:date)
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Ocelot, s.r.o
https://schema.org/isbn	978-80-260-0079-2
is http://linked.open...avai/riv/vysledek of	The Influence of Carbon on Small Punch Testing of Niobium-alloyed Iron Aluminide

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