Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F12%3A86084203" target="_blank" >RIV/61989100:27360/12:86084203 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics

Popis výsledku v původním jazyce

The influence of metallic yttrium with a purity of 99.9 % on the microstructure and properties of cast Ti-47Al alloys prepared by vacuum induction melting was studied. The prepared alloys exhibited relatively homogeneous composition with dendritic structure formed by lamellar dendrites and g phase in interdendritic areas. The most yttrium rich phases were observed in the interdendritic areas, but were also observed within the dendrites. The composition of this phase corresponded to the Y2O3 oxide. It was found, that yttrium reduces the content of intersticial oxygen in the alloys due to high affinity to oxygen and also reduces primary and secondary arm spacing. Furthermore, the influence of yttrium on the solidification process of prepared alloys was studied by DTA (differential thermal analysis) and also was evaluated microhardness of prepared alloys.

Název v anglickém jazyce

Effect of yttrium on oxygen content and microstructure of Ti-Al intermetallics

Popis výsledku anglicky

The influence of metallic yttrium with a purity of 99.9 % on the microstructure and properties of cast Ti-47Al alloys prepared by vacuum induction melting was studied. The prepared alloys exhibited relatively homogeneous composition with dendritic structure formed by lamellar dendrites and g phase in interdendritic areas. The most yttrium rich phases were observed in the interdendritic areas, but were also observed within the dendrites. The composition of this phase corresponded to the Y2O3 oxide. It was found, that yttrium reduces the content of intersticial oxygen in the alloys due to high affinity to oxygen and also reduces primary and secondary arm spacing. Furthermore, the influence of yttrium on the solidification process of prepared alloys was studied by DTA (differential thermal analysis) and also was evaluated microhardness of prepared alloys.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/ED0040%2F01%2F01" target="_blank" >ED0040/01/01: Regionální materiálově technologické výzkumné centrum</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2012 : 21st International Conference on Metallurgy and Materials : conference proceedings

ISBN

978-80-87294-31-4

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1430-1436

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 5. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—