About: Microstructure of TiAl-Nb alloys after thermal hydrogen processing

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Study of hydrogen effect on microstructure change after different heat treatment under argon or hydrogen was carried out. Experimental alloys Ti45Al10Nb and Ti40Al15Nb were prepared from TiNb master alloy (55/45 mass %) and pieces of elemental Al and Ti using plasma melting. Ingots were vacuum induction remelted. Both as-cast alloys were annealed at 700°C for 8 hours under argon or hydrogen in order to compare influence of annealing atmosphere on microstructure changes. Heat treatment at 1300°C for 4 hours in flowing hydrogen followed by quenching in water from 700°C allowed to observe influence of hydrogen as phase-stabilizer in the microstructure. Based on microhardness values the influence of various parameters, such as Nb content, presence of hydrogen in the structure or thermal history of the alloys on the microstructure feature, was evaluated. The lamellar microstructure (a2 + g) was found for both alloys in as-cast condition. Hydrogen effect on increasing microhardness was observed only for samples hydrogenated at 700°C. Study of hydrogen effect on microstructure change after different heat treatment under argon or hydrogen was carried out. Experimental alloys Ti45Al10Nb and Ti40Al15Nb were prepared from TiNb master alloy (55/45 mass %) and pieces of elemental Al and Ti using plasma melting. Ingots were vacuum induction remelted. Both as-cast alloys were annealed at 700°C for 8 hours under argon or hydrogen in order to compare influence of annealing atmosphere on microstructure changes. Heat treatment at 1300°C for 4 hours in flowing hydrogen followed by quenching in water from 700°C allowed to observe influence of hydrogen as phase-stabilizer in the microstructure. Based on microhardness values the influence of various parameters, such as Nb content, presence of hydrogen in the structure or thermal history of the alloys on the microstructure feature, was evaluated. The lamellar microstructure (a2 + g) was found for both alloys in as-cast condition. Hydrogen effect on increasing microhardness was observed only for samples hydrogenated at 700°C. (en)
Title	Microstructure of TiAl-Nb alloys after thermal hydrogen processing Microstructure of TiAl-Nb alloys after thermal hydrogen processing (en)
skos:prefLabel	Microstructure of TiAl-Nb alloys after thermal hydrogen processing Microstructure of TiAl-Nb alloys after thermal hydrogen processing (en)
skos:notation	RIV/61989100:27360/12:86084202!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	Losertová, Monika Juřica, Jan
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	150437
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/12:86084202
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	microhardness; lamellar microstructure; hydrogen effect; TiAl (en)
http://linked.open.../riv/klicoveSlovo	hydrogen effect TiAl lamellar microstructure microhardness
http://linked.open...ontrolniKodProRIV	[6550A12A14C1]
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	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional materials science and technology centre
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Juřica, Jan Losertová, 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	Microstructure of TiAl-Nb alloys after thermal hydrogen processing

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