FeSiBAlNiMo High Entropy Alloy Prepared by Mechanical Alloying

• Authors: R. Bureš , H. Hadraba , M. Fáberová , P. Kollár , J. Füzer , P. Roupcová , M. Strečková
• Languages of publication: EN

Abstracts

EN

High-entropy alloys have attracted increasing attentions because of their unique compositions, microstructures, and adjustable mechanical and functional properties. In this work, mechanical and magnetic properties of the FeSiBAlNiMo high-entropy alloy were studied in heat-treated conditions. Influence of temperature and time of sintering was investigated. The lowest coercivity H_c=370 A/m was reached at sintering temperature 580°C, during 20 min in Ar/10H₂ atmosphere. Resistivity decreases from R=0.006 Ωcm at 580°C of sintering temperature to R=0.0004 Ωcm at temperature 1100°C. Transverse rupture strength TRS = 340 MPa as well as the Young modulus E=87 GPa were much higher in the case of sintering at 1100°C in comparison to TRS = 5 MPa and E=7.5 GPa at sintering temperature 580°C. Low temperature consolidation made possible to structure recovery and stress relief of amorphous-nanocrystalline structure. Higher temperature above 1100°C induced sintering processes and formation of complex borides.

Keywords

EN

81.05.-t; 75.50.Tt; 75.50.Kj; 62.20.-x

Discipline

• 62.20.-x: Mechanical properties of solids
• 75.50.Tt: Fine-particle systems; nanocrystalline materials
• 81.05.-t: Specific materials: fabrication, treatment, testing, and analysis(for superconducting materials, see 74.70.-b, and 74.72.-h; for magnetic materials, see 75.50.-y; for optical materials, see 42.70.-a; for dielectric materials, see 77.84.-s; for disperse systems and complex fluids, see 82.70.-y; see also 82.75.-z Molecular sieves, zeolites, clathrates, and other complex solids; for materials properties, see sections 60 and 70)
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials

• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 771-773

Dates

published

2017-04

Contributors

author

R. Bureš

• Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

H. Hadraba

• Institute of Physics of Materials, Academy of Sciences of Czech Republic, Žižkova 22, 616 62 Brno, Czech Republic

author

M. Fáberová

• Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic

author

P. Kollár

• Institute of Physics, Faculty of Science, P.J. Safarik University in Košice, Park Angelinum 9, 041 54 Košice, Slovak Republic

author

J. Füzer

• Institute of Physics, Faculty of Science, P.J. Safarik University in Košice, Park Angelinum 9, 041 54 Košice, Slovak Republic

author

P. Roupcová

• Institute of Physics of Materials, Academy of Sciences of Czech Republic, Žižkova 22, 616 62 Brno, Czech Republic

author

M. Strečková

• Institute of Physics of Materials, Academy of Sciences of Czech Republic, Žižkova 22, 616 62 Brno, Czech Republic

References

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Identifiers

DOI

10.12693/APhysPolA.131.771