Deformation behaviour of Ni3Al based alloys in compression

Result code in 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>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Deformation behaviour of Ni3Al based alloys in compression

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/LO1203" target="_blank" >LO1203: Regional Materials Science and Technology Centre - Feasibility Program</a><br>

Continuities

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

Publication year

2016

Confidentiality

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

Article name in the collection

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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Number of pages

6

Pages from-to

1486-1491

Publisher name

Tanger

Place of publication

Ostrava

Event location

Brno

Event date

May 25, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000391251200243