Preparation of TiAl-based alloys by induction melting in graphite crucibles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F15%3A86096271" target="_blank" >RIV/61989100:27360/15:86096271 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4149/km_2015_2_69" target="_blank" >http://dx.doi.org/10.4149/km_2015_2_69</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4149/km_2015_2_69" target="_blank" >10.4149/km_2015_2_69</a>

Result language

angličtina

Original language name

Preparation of TiAl-based alloys by induction melting in graphite crucibles

Original language description

Three TiAl-based alloys with nominal composition Ti-47Al-8Nb, Ti-47Al-8Ta and Ti-47Al-8Ta-0.3Y (at.%) were prepared by induction melting in graphite crucibles and centrifugal casting into graphite moulds. Chemical composition, microstructure and mechanical properties of the as-cast alloys are characterised. The melting in the graphite crucible leads to an increase of carbon content from 460 to 1020 wtppm and formation of fine carbide particles predominantly in the ?(TiAl) phase. Beside fine carbides, the addition of 0.3 at.% of yttrium results in formation of fine Y2O3 and YAl2 particles. The oxygen content depends on the chemical composition and varies between 330 and 780 wtppm for Ta and Nb containing alloys, respectively. The as-cast alloys exhibitrelatively high values of room-temperature compression yield strength up to 922 MPa, ultimate compression strength up to 1793 MPa and plastic deformation to fracture up to 24.3 %. The compression yield strength increases linearly with inc

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

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)

Publication year

2015

Confidentiality

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

Name of the periodical

Kovové materiály

ISSN

0023-432X

e-ISSN

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Volume of the periodical

53

Issue of the periodical within the volume

2

Country of publishing house

SK - SLOVAKIA

Number of pages

10

Pages from-to

69-78

UT code for WoS article

000352522100001

EID of the result in the Scopus database

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