Influence of the technological scheme of manufacture on the structure and properties of high entropy alloys of the system Ti – Cr – Fe – Ni – Cu

Authors

  • M. V. Marych I. M. Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Kyiv
  • A. A. Mamonova I. M. Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Kyiv
  • G. A. Bagliuk I. M. Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Kyiv

DOI:

https://doi.org/10.15407/mom2018.02.036

Abstract

Using the methods of powder metallurgy, according to three technological schemes, high-entropic alloys of the equiatomic composition TiCrFeNiCu were developed. During the sintering of the mixture of the equiatomic composition of TiCrFeNiCu, the effect of entropy of mixing caused the formation of solid substitution solutions based on lattices of BCC and FCC. The most complete realization of mixing entropy is carried out by technology: grinding → hot stamping. Hot stamping of the ground powders leads to the preferential formation of a solid substitution solution based on the FCC lattice with a substantial distortion of the crystal lattice: CSR – 15,3 nm, (Δa/a) – 20,1·10-2 (FCC), dislocation density ρ – 8,6·1012 cm-2 (FCC). The resulting alloy has maximum hardness.

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Published

2018-06-30

How to Cite

Marych М. В., Mamonova А. А., & Bagliuk Г. А. (2018). Influence of the technological scheme of manufacture on the structure and properties of high entropy alloys of the system Ti – Cr – Fe – Ni – Cu. Scientific Technical Journal ‘’Metal Science and Treatment of Metals’’, 24(2), 36–44. https://doi.org/10.15407/mom2018.02.036

Issue

Vol. 24 No. 2 (2018): The Scientific Technical journal Metal Science and Treatment of Metals

Section

NEW TECHNOLOGICAL PROCESSES AND MATERIALS

License

Copyright (c) 2018 M. V. Marych, A. A. Mamonova, G. A. Bagliuk

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