Detail publikace
Synergic strengthening by oxide and coherent precipitate dispersions in high-entropy alloy prepared by powder metallurgy
MORAVČÍK, I. DE ALMEIDA GOUVÊA, L. HORNÍK, V. KOVACOVA, Z. KITZMANTEL, E. NEUBAUER, E. DLOUHÝ, I.
Anglický název
Synergic strengthening by oxide and coherent precipitate dispersions in high-entropy alloy prepared by powder metallurgy
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
The present work deals with the synthesis and evaluation of the microstructural and mechanical properties of face-centred cubic Ni1.5Co1.5CrFeTi0.5 high-entropy alloy strengthened by nano-sized titanium oxide dispersion and coherent precipitates of Ni3Ti intermetallic phase produced by powder metallurgy. The alloy's properties are well tuneable by the use of proper heat treatment. The alloy exhibits an excellent combination of tensile strength and ductility, reaching an ultimate tensile strength of 1460 MPa and elongation of 14.5% in solution annealed state and 1660 MPa and 4.8% in the aged condition. Most of the strengthening contribution was attributed to Orowan-type strengthening mechanism
Anglický abstrakt
The present work deals with the synthesis and evaluation of the microstructural and mechanical properties of face-centred cubic Ni1.5Co1.5CrFeTi0.5 high-entropy alloy strengthened by nano-sized titanium oxide dispersion and coherent precipitates of Ni3Ti intermetallic phase produced by powder metallurgy. The alloy's properties are well tuneable by the use of proper heat treatment. The alloy exhibits an excellent combination of tensile strength and ductility, reaching an ultimate tensile strength of 1460 MPa and elongation of 14.5% in solution annealed state and 1660 MPa and 4.8% in the aged condition. Most of the strengthening contribution was attributed to Orowan-type strengthening mechanism
Klíčová slova anglicky
Mechanical alloying, Strength, Tension test, Oxide dispersion strengthened (ODS) alloy, Spark plasma sintering
Vydáno
29.06.2018
Nakladatel
Elsevier
Místo
London
ISSN
1359-6462
Ročník
157
Číslo
1
Strany od–do
24–29
Počet stran
6
BIBTEX
@article{BUT149038,
author="Igor {Moravčík} and Larissa {Moravčíková de Almeida Gouvea} and Vít {Horník} and Zuzana {Kovacova} and Erich {Kitzmantel} and Erich {Neubauer} and Ivo {Dlouhý},
title="Synergic strengthening by oxide and coherent precipitate dispersions in high-entropy alloy prepared by powder metallurgy",
year="2018",
volume="157",
number="1",
month="June",
pages="24--29",
publisher="Elsevier",
address="London",
issn="1359-6462"
}