Preparation and study of properties of intermetallic alloys based on TiAl alloyed 10 and 15 % Nb

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation and study of properties of intermetallic alloys based on TiAl alloyed 10 and 15 % Nb

Popis výsledku v původním jazyce

Intermetallic alloy based on TiAl and doped with Nb was studied. Cast rods of Ti-45Al-10Nb and Ti-40Al-15Nb were homogenized at 1100°C for 12 hours in Ar and water quenched from 700°C. Hydrogen effect on microstructure of specimens was investigated afterheat treatment at 700 °C for 8 hours in Ar atmosphere as well as in hydrogen flowing gas. Metallographic study completed with microhardness measurement and EDS microanalysis revealed that lamellar microstructure of the samples in as-cast and heat treated conditions was formed of the gama (45 at.% Al) and alfa2 (41 at.% Al) phases. Decreasing microhardness values were found after annealing and quenching. Effect of hydrogen on the lamellar microstructure as well as the microhardness values was studied inthe hydrogen-charged and hydrogen-free conditions.

Název v anglickém jazyce

Preparation and study of properties of intermetallic alloys based on TiAl alloyed 10 and 15 % Nb

Popis výsledku anglicky

Intermetallic alloy based on TiAl and doped with Nb was studied. Cast rods of Ti-45Al-10Nb and Ti-40Al-15Nb were homogenized at 1100°C for 12 hours in Ar and water quenched from 700°C. Hydrogen effect on microstructure of specimens was investigated afterheat treatment at 700 °C for 8 hours in Ar atmosphere as well as in hydrogen flowing gas. Metallographic study completed with microhardness measurement and EDS microanalysis revealed that lamellar microstructure of the samples in as-cast and heat treated conditions was formed of the gama (45 at.% Al) and alfa2 (41 at.% Al) phases. Decreasing microhardness values were found after annealing and quenching. Effect of hydrogen on the lamellar microstructure as well as the microhardness values was studied inthe hydrogen-charged and hydrogen-free conditions.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Den interních doktorandů 2010

ISBN

978-80-248-2344-7

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

VŠB - TU Ostrava

Místo vydání

Ostrava

Místo konání akce

Ostrava

Datum konání akce

1. 12. 2010

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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