About: Oxidation Performance of Cold Sprayed Ti-Al Barriers on gamma-TiAl Intermetallic Substrates

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About: Oxidation Performance of Cold Sprayed Ti-Al Barriers on gamma-TiAl Intermetallic Substrates Goto Sponge NotDistinct Permalink

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Description	Four blends of Al powder doped with 0%, 5%, 15%, and 30% Ti content were prepared and their respective morphology and chemical compositions were specified. Using low-pressure cold spray, protective layers of the blends designated for deliberate oxidation were then deposited onto Ti-46Al-7Nb substrates, while preserving their initial chemical composition and retaining its original mutual Al:Ti ratio. Prior to long-term oxidation testing, heat-treatment in a protective argon atmosphere under temperatures 420'C-580'C was carried out in order to induce formation of intermetallic phases within the deposits and further compact the layers. Following the treatment, the specimens were subjected to 950'C exposure for 100, 250 and 500hrs, respectively and their respective oxidation performance was monitored using the gravimetric method. It was found that the heat-treatments conducted above 500'C prompted an activation of Al-driven diffusion processes in the sprayed coatings, leading to a formation of various T Four blends of Al powder doped with 0%, 5%, 15%, and 30% Ti content were prepared and their respective morphology and chemical compositions were specified. Using low-pressure cold spray, protective layers of the blends designated for deliberate oxidation were then deposited onto Ti-46Al-7Nb substrates, while preserving their initial chemical composition and retaining its original mutual Al:Ti ratio. Prior to long-term oxidation testing, heat-treatment in a protective argon atmosphere under temperatures 420'C-580'C was carried out in order to induce formation of intermetallic phases within the deposits and further compact the layers. Following the treatment, the specimens were subjected to 950'C exposure for 100, 250 and 500hrs, respectively and their respective oxidation performance was monitored using the gravimetric method. It was found that the heat-treatments conducted above 500'C prompted an activation of Al-driven diffusion processes in the sprayed coatings, leading to a formation of various T (en)
Title	Oxidation Performance of Cold Sprayed Ti-Al Barriers on gamma-TiAl Intermetallic Substrates Oxidation Performance of Cold Sprayed Ti-Al Barriers on gamma-TiAl Intermetallic Substrates (en)
skos:prefLabel	Oxidation Performance of Cold Sprayed Ti-Al Barriers on gamma-TiAl Intermetallic Substrates Oxidation Performance of Cold Sprayed Ti-Al Barriers on gamma-TiAl Intermetallic Substrates (en)
skos:notation	RIV/00216305:26210/13:PU107047!RIV14-GA0-26210___
http://linked.open...avai/predkladatel	Fakulta strojního inženýrství
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED0002/01/01), P(GA13-35890S)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Dlouhý, Ivo Čížek, Jan Man, Ondřej
http://linked.open.../riv/druhVysledku	A(V) - Audiovizuální tvorba se vzdáleným přístupem
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	95081
http://linked.open...ai/riv/idVysledku	RIV/00216305:26210/13:PU107047
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cold spray, oxidation protection, TiAl, intermetallics, heat treatment (en)
http://linked.open.../riv/klicoveSlovo	oxidation protection intermetallics TiAl heat treatment cold spray
http://linked.open...i/riv/kodPristupu	L
http://linked.open...ontrolniKodProRIV	[9A71674259F7]
http://linked.open...i/riv/mistoVydani	Limoges, Francie
http://linked.open...telVyzkumneZpravy	Neuveden
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	NETME Centre (New Technologies for Mechanical Engineering) Intermetalické sloučeniny syntetizované in-situ v kineticky nanášeném depozitu
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Dlouhý, Ivo Čížek, Jan Man, Ondřej
http://linked.open...rzeVyzkumneZpravy	6RIPT
http://localhost/t...ganizacniJednotka	26210

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