Možnosti ovlivnění lamelární mikrostruktury slitiny Ti 46Al-5Nb-1W pomocí směrové krystalizace

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F05%3A00012985" target="_blank" >RIV/61989100:27360/05:00012985 - 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

Possibilities of affecting the lamellar microstructure of Ti 46Al-5Nb-1W alloy by directional crystallisation

Popis výsledku v původním jazyce

Intermetallic alloys based on g-TiAl two-phases alloys are sought-after materials for assumed applications in aerospace and automotive industries. Their favorable properties, such as low density and good corrosion resistance, are accompanied on the otherhand by low toughness and very difficult metallurgy. One of the possibilities to improve the toughness of Ti-46Al-5Nb-1W (at.%) alloy consists in change of their microstructure into lamellar microstructure, which can be reached moreover by directional crystallisation. This experiment is described in this paper. Samples of the Ti-46Al-5Nb-1W (at.%) alloy were prepared by plasma melting. Then the samples were remelted in vacuum-induction furnace becouse of the low homogenity. Cast samples were subjectedto directional crystallization. Cooling rates were constant and ranged from 20 mm/h to 425 mm/h. Directional crystallization has been accomplished in ceramic tubes made of corundum - Al2O3. The samples were studied by metallographic analy

Název v anglickém jazyce

Possibilities of affecting the lamellar microstructure of Ti 46Al-5Nb-1W alloy by directional crystallisation

Popis výsledku anglicky

Intermetallic alloys based on g-TiAl two-phases alloys are sought-after materials for assumed applications in aerospace and automotive industries. Their favorable properties, such as low density and good corrosion resistance, are accompanied on the otherhand by low toughness and very difficult metallurgy. One of the possibilities to improve the toughness of Ti-46Al-5Nb-1W (at.%) alloy consists in change of their microstructure into lamellar microstructure, which can be reached moreover by directional crystallisation. This experiment is described in this paper. Samples of the Ti-46Al-5Nb-1W (at.%) alloy were prepared by plasma melting. Then the samples were remelted in vacuum-induction furnace becouse of the low homogenity. Cast samples were subjectedto directional crystallization. Cooling rates were constant and ranged from 20 mm/h to 425 mm/h. Directional crystallization has been accomplished in ceramic tubes made of corundum - Al2O3. The samples were studied by metallographic analy

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F03%2F0984" target="_blank" >GA106/03/0984: Metalurgické možnosti modifikace vlastností intermetalických sloučenin ze soustavy Ti-Al a Ti-Al-Me</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Acta Metallurgica Slovaca

ISSN

1335-1532

e-ISSN

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Svazek periodika

11

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

8

Strana od-do

293-300

Kód UT WoS článku

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EID výsledku v databázi Scopus

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