Detail publikace

High entropy alloys (FeCoNi) 0.75 Cr 0.25-x Cu x – thermal stability and physical properties

BROŽ, P. VŘEŠŤÁL, J. SOPOUŠEK, J. WEISS, K. BURŠÍK, J. BURŠÍKOVÁ, V. ZÁDĚRA, A. MÜLLER, P. ČUPERA, J. ROGL, G. PARZER, M. BAUER, E. MICHOR, H. ROGL.P.F.

Anglický název

High entropy alloys (FeCoNi) 0.75 Cr 0.25-x Cu x – thermal stability and physical properties

Typ

Článek WoS

Jazyk

en

Originální abstrakt

The paper reports on the phase stability of the (FeCoNi) 0.75 Cr 0.25-x Cu x HEA system with equimolar ratio of Fe, Co and Ni by differential scanning calorimetry (DSC) and measurements of physicochemical properties: density, electrical resistivity, Seebeck coefficient, thermal conductivity, and magnetic behaviour in a broad temperature region as well as hardness and elastic modulus at room temperature as a function of the gradual substitution of chromium by copper in a series of (FeCoNi) 0.75 Cr 0.25-x Cu x alloys with different mole fraction of Cu (x = 0, 0.05, 0.1, 0.15 and 0.2). DSC measurements showed that all alloys are thermally stable. Increasing content of Cu was found (i) to increase the formation of a fcc Cu-rich phase, (ii) to strengthen ferromagnetic interactions, resulting in rising ordered magnetic moments, as well as in growing ferromagnetic transition temperatures, and (iii) to distinctly change physical properties like electrical resistivity, thermal expansion, and mechanical properties. Experimental data regarding the phase stability are supported by CALPHAD calculations.

Klíčová slova anglicky

HEA; Phase equilibria; DSC; Physical properties; Density; Thermal expansion; Hardness

Vydáno

2024-04-23

Nakladatel

ELSEVIER SCIENCE SA

Místo

LAUSANNE

ISSN

0925-8388

Ročník

993

Číslo

July

Strany od–do

1–11

Počet stran

11

BIBTEX


@article{BUT189753,
  author="BROŽ, P. and VŘEŠŤÁL, J. and SOPOUŠEK, J. and WEISS, K. and BURŠÍK, J. and BURŠÍKOVÁ, V. and ZÁDĚRA, A. and MÜLLER, P. and ČUPERA, J. and ROGL, G. and PARZER, M. and BAUER, E. and MICHOR, H. and ROGL.P.F.",
  title="High entropy alloys (FeCoNi) 0.75 Cr 0.25-x Cu x - thermal stability and physical properties",
  journal="Journal of Alloys and Compounds",
  year="2024",
  volume="993",
  number="July",
  pages="1--11",
  doi="10.1016/j.jallcom.2024.174628",
  issn="0925-8388",
  url="https://www.sciencedirect.com/science/article/pii/S0925838824012155"
}