High-temperature behaviour of Ti-Al-Nb-Ta intermetallics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F11%3A43892610" target="_blank" >RIV/60461373:22310/11:43892610 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

High-temperature behaviour of Ti-Al-Nb-Ta intermetallics

Popis výsledku v původním jazyce

"Ti-Al intermetallics have gained significant attention as possible replacements of nickel superalloys in high-temperature applications in automotive, aerospace and energetic industry. The favourable properties of Ti-Al intermetallics are improved by alloying; keeping their low density these materials gain high strength, good structural stability, high-temperature oxidation and creep resistance. One of the common alloying elements used in this application is niobium. It improves the high-temperature properties especially the oxidation resistance. In present time the tantalum is studied as well with same or even better results. This work compares the influence of Nb and Ta on the properties of Ti-Al intermetallics. In particular, we studied the alloys of the compositions Ti-46Al, Ti-46Al-8Nb and Ti-46Al-8Ta (at. %). We evaluated the transverse strength and the hardness of as-cast samples and described their microstructure as well. Finally we inspected the high-temperature properties suc

Název v anglickém jazyce

High-temperature behaviour of Ti-Al-Nb-Ta intermetallics

Popis výsledku anglicky

"Ti-Al intermetallics have gained significant attention as possible replacements of nickel superalloys in high-temperature applications in automotive, aerospace and energetic industry. The favourable properties of Ti-Al intermetallics are improved by alloying; keeping their low density these materials gain high strength, good structural stability, high-temperature oxidation and creep resistance. One of the common alloying elements used in this application is niobium. It improves the high-temperature properties especially the oxidation resistance. In present time the tantalum is studied as well with same or even better results. This work compares the influence of Nb and Ta on the properties of Ti-Al intermetallics. In particular, we studied the alloys of the compositions Ti-46Al, Ti-46Al-8Nb and Ti-46Al-8Ta (at. %). We evaluated the transverse strength and the hardness of as-cast samples and described their microstructure as well. Finally we inspected the high-temperature properties suc

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/IAA200100902" target="_blank" >IAA200100902: Krystalizace intermetalik na bázi titanu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Conference proceedings, 20th International Conference on Metallurgy and Materials

ISBN

978-80-87294-24-6

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

986-991

Název nakladatele

TANGER

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

18. 5. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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