Deformation behaviour of Ni3Al based alloys in compression

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F16%3A86099548" target="_blank" >RIV/61989100:27360/16:86099548 - 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

Deformation behaviour of Ni3Al based alloys in compression

Popis výsledku v původním jazyce

Ni3Al based alloys in the as-cast state and directionally solidified were used for tests in compression at higher temperatures. The alloys were prepared by vacuum induction melting. Directional solidification was performed by Bridgman method with the vertical arrangement. The mechanical characteristics in compression were determined at the temperatures of 1000 degrees C and 800 degrees C with use of the equipment Gleeble 3800. Evolution of deformation of the alloys in the directed and as-cast state has a similar course, yet it is still possible to observe some differences. The directionally solidified alloys show more stable evolution of deformation, whereas the phase Ni-24Al alloys achieve better mechanical properties at higher temperatures. It was found that the yield strength increases up to the temperature of 800 degrees C. Directionally solidified mono-phase and multi-phase alloys exhibited at testing at the temperature of 1000 degrees C distinct yield strength, which is not typical for these alloys within the temperature range of 20-800 degrees C. The yield strengths are similar for all the samples, approximately 530 to 600 MPa at 800 degrees C. The Ni-22Al alloys are less susceptible to a change of the yield strength with the increasing temperature. The yield strength value does not decrease significantly even at the temperature of 1000 degrees C.

Název v anglickém jazyce

Deformation behaviour of Ni3Al based alloys in compression

Popis výsledku anglicky

Ni3Al based alloys in the as-cast state and directionally solidified were used for tests in compression at higher temperatures. The alloys were prepared by vacuum induction melting. Directional solidification was performed by Bridgman method with the vertical arrangement. The mechanical characteristics in compression were determined at the temperatures of 1000 degrees C and 800 degrees C with use of the equipment Gleeble 3800. Evolution of deformation of the alloys in the directed and as-cast state has a similar course, yet it is still possible to observe some differences. The directionally solidified alloys show more stable evolution of deformation, whereas the phase Ni-24Al alloys achieve better mechanical properties at higher temperatures. It was found that the yield strength increases up to the temperature of 800 degrees C. Directionally solidified mono-phase and multi-phase alloys exhibited at testing at the temperature of 1000 degrees C distinct yield strength, which is not typical for these alloys within the temperature range of 20-800 degrees C. The yield strengths are similar for all the samples, approximately 530 to 600 MPa at 800 degrees C. The Ni-22Al alloys are less susceptible to a change of the yield strength with the increasing temperature. The yield strength value does not decrease significantly even at the temperature of 1000 degrees C.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2016: conference proceedings : (reviewed version) : 25th Anniversary International Conference on Metallurgy and Materials : May 25th-27th 2016, Hotel Voronez I, Brno, Czech Republic, EU

ISBN

978-80-87294-67-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

1486-1491

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

25. 5. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000391251200243