Detail publikace

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

Originální název

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

Anglický název

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

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

BibTex


@article{BUT149038,
  author="Igor {Moravčík} and Larissa {Moravčíkova de Almeida Gouvêa} 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",
  annote="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",
  address="Elsevier",
  chapter="149038",
  doi="10.1016/j.scriptamat.2018.07.034",
  howpublished="online",
  institution="Elsevier",
  number="1",
  volume="157",
  year="2018",
  month="june",
  pages="24--29",
  publisher="Elsevier",
  type="journal article in Web of Science"
}