Publication result detail

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.

Original Title

Synergic strengthening by oxide and coherent precipitate dispersions in high-entropy alloy prepared by powder metallurgy

English Title

Synergic strengthening by oxide and coherent precipitate dispersions in high-entropy alloy prepared by powder metallurgy

Type

WoS Article

Original Abstract

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

English abstract

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

Keywords

Mechanical alloying, Strength, Tension test, Oxide dispersion strengthened (ODS) alloy, Spark plasma sintering

Key words in English

Mechanical alloying, Strength, Tension test, Oxide dispersion strengthened (ODS) alloy, Spark plasma sintering

Authors

MORAVČÍK, I.; DE ALMEIDA GOUVÊA, L.; HORNÍK, V.; KOVACOVA, Z.; KITZMANTEL, E.; NEUBAUER, E.; DLOUHÝ, I.

RIV year

2019

Released

29.06.2018

Publisher

Elsevier

Location

London

ISBN

1359-6462

Periodical

SCRIPTA MATERIALIA

Volume

157

Number

1

State

United States of America

Pages from

24

Pages to

29

Pages count

6

URL

https://www.sciencedirect.com/science/article/pii/S1359646218304536

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",
  journal="SCRIPTA MATERIALIA",
  year="2018",
  volume="157",
  number="1",
  pages="24--29",
  doi="10.1016/j.scriptamat.2018.07.034",
  issn="1359-6462",
  url="https://www.sciencedirect.com/science/article/pii/S1359646218304536"
}

Documents

149038