About: Effect of Cyclic Heat Treatment on Cast Structure of TiAl Alloy

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The subject of the article is focused on the refining of the cast structure of gamma TiAl-2Nb alloy using cyclic heat treatment and on the analysis of the grain refining mechanism. Microstructure evolution after applied cycles of heat treatment was characterized using light, laser and electron microscopy and using microhardness tests. Application of five heat treatment cycles during which two phase transformations (eutectoid and alpha-recrystallization reactions) repeatedly took place resulted in refining of the cast columnar structure. The mean grain-lamellar colony size 512 mm was transformed to fully lamellar structure containing gamma and alpha2 phases having the mean grain size 229 mm. Lamellae thickness of gamma was not changed while the thickness of alpha2 phase decreased to 78 nm. Refining of alpha2 phase resulted in the increase of the microhardness by 20 %. The recrystallized cast structure obtained by cyclic heat treatment and the knowledge on the mechanisms of the refining the structure w The subject of the article is focused on the refining of the cast structure of gamma TiAl-2Nb alloy using cyclic heat treatment and on the analysis of the grain refining mechanism. Microstructure evolution after applied cycles of heat treatment was characterized using light, laser and electron microscopy and using microhardness tests. Application of five heat treatment cycles during which two phase transformations (eutectoid and alpha-recrystallization reactions) repeatedly took place resulted in refining of the cast columnar structure. The mean grain-lamellar colony size 512 mm was transformed to fully lamellar structure containing gamma and alpha2 phases having the mean grain size 229 mm. Lamellae thickness of gamma was not changed while the thickness of alpha2 phase decreased to 78 nm. Refining of alpha2 phase resulted in the increase of the microhardness by 20 %. The recrystallized cast structure obtained by cyclic heat treatment and the knowledge on the mechanisms of the refining the structure w (en)
Title	Effect of Cyclic Heat Treatment on Cast Structure of TiAl Alloy Effect of Cyclic Heat Treatment on Cast Structure of TiAl Alloy (en)
skos:prefLabel	Effect of Cyclic Heat Treatment on Cast Structure of TiAl Alloy Effect of Cyclic Heat Treatment on Cast Structure of TiAl Alloy (en)
skos:notation	RIV/00216305:26210/13:PU110094!RIV15-MSM-26210___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Vraspírová, Eva Heczko, Milan
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	Vysoké učení technické v Brně / Fakulta strojního inženýrství
http://linked.open...dnocenehoVysledku	71448
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/13:PU110094
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	TiAl alloy, cyclic heat treatment, refined cast structure, discontinuous coarsening, microhardness (en)
http://linked.open.../riv/klicoveSlovo	TiAl alloy cyclic heat treatment discontinuous coarsening microhardness refined cast structure
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[6906DE24A757]
http://linked.open...i/riv/nazevZdroje	Key Engineering Materials (print)
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	586
http://linked.open...iv/tvurceVysledku	Petrenec, Martin Vraspírová, Eva Heczko, Milan Němec, Karel
issn	1013-9826
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.4028/www.scientific.net/KEM.586.222
http://localhost/t...ganizacniJednotka	26210

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