About: Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics

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Description	The influence of metallic yttrium with a purity of 99.9 % on the microstructure and properties of cast Ti-47Al alloys prepared by vacuum induction melting was studied. The prepared alloys exhibited relatively homogeneous composition with dendritic structure formed by lamellar dendrites and g phase in interdendritic areas. The most yttrium rich phases were observed in the interdendritic areas, but were also observed within the dendrites. The composition of this phase corresponded to the Y2O3 oxide. It was found, that yttrium reduces the content of intersticial oxygen in the alloys due to high affinity to oxygen and also reduces primary and secondary arm spacing. Furthermore, the influence of yttrium on the solidification process of prepared alloys was studied by DTA (differential thermal analysis) and also was evaluated microhardness of prepared alloys. The influence of metallic yttrium with a purity of 99.9 % on the microstructure and properties of cast Ti-47Al alloys prepared by vacuum induction melting was studied. The prepared alloys exhibited relatively homogeneous composition with dendritic structure formed by lamellar dendrites and g phase in interdendritic areas. The most yttrium rich phases were observed in the interdendritic areas, but were also observed within the dendrites. The composition of this phase corresponded to the Y2O3 oxide. It was found, that yttrium reduces the content of intersticial oxygen in the alloys due to high affinity to oxygen and also reduces primary and secondary arm spacing. Furthermore, the influence of yttrium on the solidification process of prepared alloys was studied by DTA (differential thermal analysis) and also was evaluated microhardness of prepared alloys. (en)
Title	Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics (en)
skos:prefLabel	Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics (en)
skos:notation	RIV/61989100:27360/12:86084203!RIV13-MSM-27360___
http://linked.open...avai/predkladatel	Fakulta metalurgie a materiálového inženýrství
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED0040/01/01)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Kursa, Miroslav Čegan, Tomáš Konečná, Kateřina Smetana, Bedřich Zlá, Simona Žaludová, Monika Matějka, Vlastimil
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	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	133363
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/12:86084203
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	differential thermal analysis (DTA); oxygen content; yttrium; microstructure; TiAl alloys (en)
http://linked.open.../riv/klicoveSlovo	differential thermal analysis (DTA) microstructure oxygen content TiAl alloys yttrium
http://linked.open...ontrolniKodProRIV	[34FB971B1C6B]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	METAL 2012 : 21st International Conference on Metallurgy and Materials : conference proceedings
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	7 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional materials science and technology centre
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Konečná, Kateřina Kursa, Miroslav Matějka, Vlastimil Smetana, Bedřich Zlá, Simona Čegan, Tomáš Žaludová, Monika
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-05-23 (xsd:date)
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Tanger s.r.o.
https://schema.org/isbn	978-80-87294-31-4
http://localhost/t...ganizacniJednotka	27360
is http://linked.open...avai/riv/vysledek of	Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics

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