About: METALLURGY AND PROPERTIES OF ADVANCED NiAl-Mo EUTECTICS

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A NiAl-Mo eutectic alloy was melt from 99,99% purity components and cast by the drop casting technique. The drop-cast ternary alloy (nominal composition of Ni-45Al-9Mo at. %), was re-melted and directionally solidified using a high temperature optical floating zone furnace. A resulting in-situ composite consists of Ni-45,2Al matrix and Mo-10Al-4Ni fibers, all in at. %. The volume fraction of 14% Mo-fibers stems from the eutectic composition. Backscatter diffraction shows that the NiAl-matrix and the Mo-fibers are both < 001 >-oriented with respect to the axis of the cylindrical rods. Preliminary creep experiments confirmed an immense improvement of high temperature strength due to the fine distribution of Mo-fibres. The amount of strengthening in terms of minimum creep rate can be as high as 7 orders of magnitude. Post-mortem transmission electron microscopy experiments provided evidence that creep in the temperature range of 800 - 900 degrees C results in an extensive formation of subgrain boundaries. The strengthening effect is very likely associated with the reactions between subgrain boundaries and fine Mo-fibres. A NiAl-Mo eutectic alloy was melt from 99,99% purity components and cast by the drop casting technique. The drop-cast ternary alloy (nominal composition of Ni-45Al-9Mo at. %), was re-melted and directionally solidified using a high temperature optical floating zone furnace. A resulting in-situ composite consists of Ni-45,2Al matrix and Mo-10Al-4Ni fibers, all in at. %. The volume fraction of 14% Mo-fibers stems from the eutectic composition. Backscatter diffraction shows that the NiAl-matrix and the Mo-fibers are both < 001 >-oriented with respect to the axis of the cylindrical rods. Preliminary creep experiments confirmed an immense improvement of high temperature strength due to the fine distribution of Mo-fibres. The amount of strengthening in terms of minimum creep rate can be as high as 7 orders of magnitude. Post-mortem transmission electron microscopy experiments provided evidence that creep in the temperature range of 800 - 900 degrees C results in an extensive formation of subgrain boundaries. The strengthening effect is very likely associated with the reactions between subgrain boundaries and fine Mo-fibres. (en)
Title	METALLURGY AND PROPERTIES OF ADVANCED NiAl-Mo EUTECTICS METALLURGY AND PROPERTIES OF ADVANCED NiAl-Mo EUTECTICS (en)
skos:prefLabel	METALLURGY AND PROPERTIES OF ADVANCED NiAl-Mo EUTECTICS METALLURGY AND PROPERTIES OF ADVANCED NiAl-Mo EUTECTICS (en)
skos:notation	RIV/68081723:_____/10:00440394!RIV15-GA0-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/09/2073), Z(AV0Z20410507)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Dlouhý, Antonín Barták, Tomáš Kuchařová, Květa Záležák, Tomáš
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	270617
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/10:00440394
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	eutectics; directional solidification; composite (en)
http://linked.open.../riv/klicoveSlovo	composite eutectics directional solidification
http://linked.open...ontrolniKodProRIV	[ED7A4ED2D72F]
http://linked.open...v/mistoKonaniAkce	Rožnov pod Radhoštěm
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	METAL 2010: 19TH INTERNATIONAL METALLURGICAL AND MATERIALS CONFERENCE
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Deformation mechanisms of in-situ composite materials
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Barták, Tomáš Dlouhý, Antonín Kuchařová, Květa Záležák, Tomáš
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open...ain/vavai/riv/wos	000286658700154
http://linked.open.../riv/zahajeniAkce	2010-05-18 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	TANGER LTD
https://schema.org/isbn	978-80-87294-17-8

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