Vliv směrové krystalizace na mikrostrukturu Ti 46Al-5Nb-1W

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F05%3A00012990" target="_blank" >RIV/61989100:27360/05:00012990 - 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

Effect of the directional crystallization on microstructure of Ti 46Al-5Nb-1W

Popis výsledku v původním jazyce

Ti-Al based intermetallic alloys are promising for various applications in aerospace and automobile industry. Their favorable properties, such as low density and good corrosion resistance, are accompanied on the other hand 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 crystallization. This experiment is described in this paper. Samples of the Ti-46Al-5Nb-1W (at.%) alloy prepared by plasma and vacuum-induction metallurgy were subjected to directional crystallization. Cooling rates were constant and ranged from 5.56×10-6 m×s-1 to 1.18×10-4 m×s 1. Directional crystallization has been accomplished in ceramic tubes made of corundum - Al2O3. The samples were studied by metallographic and chemical analysis. Lamellar microstructure of the samples was found to consist of a2- and g-phase lamellas.

Název v anglickém jazyce

Effect of the directional crystallization on microstructure of Ti 46Al-5Nb-1W

Popis výsledku anglicky

Ti-Al based intermetallic alloys are promising for various applications in aerospace and automobile industry. Their favorable properties, such as low density and good corrosion resistance, are accompanied on the other hand 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 crystallization. This experiment is described in this paper. Samples of the Ti-46Al-5Nb-1W (at.%) alloy prepared by plasma and vacuum-induction metallurgy were subjected to directional crystallization. Cooling rates were constant and ranged from 5.56×10-6 m×s-1 to 1.18×10-4 m×s 1. Directional crystallization has been accomplished in ceramic tubes made of corundum - Al2O3. The samples were studied by metallographic and chemical analysis. Lamellar microstructure of the samples was found to consist of a2- and g-phase lamellas.

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

Journal of Guandgdong Non-Ferrous Metals

ISSN

1003-7837

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

2-3

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

5

Strana od-do

289-293

Kód UT WoS článku

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EID výsledku v databázi Scopus

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