Russian Metallurgy (Metally)

, Volume 2019, Issue 11, pp 1212–1219 | Cite as

A Study of the Magnetic Characteristics of Cu–Mn–Bi Alloys

  • O. V. SamoilovaEmail author
  • E. A. Trofimov
  • V. I. Geraskin


The phase composition and the magnetic characteristics of 20 as-cast of Cu–Mn–Bi alloy samples have been studied experimentally. The samples have been studied using scanning electron microscopy, electron-probe microanalysis, atomic emission with inductive-coupled plasma, and X-ray diffraction analysis. The magnetic characteristics of the alloys are studied by a vibration method at room temperature. The samples contain the α-MnBi and Mn3Cu4Bi4 intermetallic compounds along with a copper-based solid solution and bismuth precipitates. The α-Mn phase can precipitate at high manganese contents in the sample compositions. The magnetic characteristics of the alloys are dependent on the volume proportion of the phases. A high of intermetallic compound content leads to an increase in the magnetic susceptibility of the samples up to the manifestation of their ferromagnetic properties. In addition, Vickers microhardness HV0.1 is measured.


Cu–Mn–Bi system magnetic properties phase composition microhardness 



This work was supported by the Russian Foundation for Basic Research, project no. 16-08-00133_a.


  1. 1.
    E. Adams, W. M. Hubbard, and A. M. Syeles, “A new permanent magnet from powdered manganese bismuthide,” J. Appl. Phys. 23 (11), 1207–1211 (1952).CrossRefGoogle Scholar
  2. 2.
    B. T. M. Willis and H. P. Rooksby, “Magnetic transitions and structural changes in hexagonal manganese compounds,” Proc. Phys. Soc. B 67 (4), 290–296 (1954).CrossRefGoogle Scholar
  3. 3.
    P. Dekker, “Manganese bismuth and other magnetic materials for beam addressable memories”, IEEE Trans. Magn. MAG-12 (4), 311–327 (1976).CrossRefGoogle Scholar
  4. 4.
    R. O. Zaitsev and N. V. Terekhina, “Ferromagnetism of compounds with hexagonal symmetry,” J. Exp. Theor. Phys. 90 (5), 886–896 (2000).CrossRefGoogle Scholar
  5. 5.
    K. Koyama, T. Onogi, Y. Mitsui, Y. Nakamori, S. Orimo, and K. Watanabe, “Magnetic phase transition of MnBi under high magnetic fields and high temperature,” Mater. Trans. 48 (9), 2414–2418 (2007).CrossRefGoogle Scholar
  6. 6.
    N. R. Christopher, N. Singh, S. K. Singh, B. Gantori, S. K. Mishra, A. Dhar, and V. P. S. Awana, “Appreciable magnetic moment and energy density in single-step normal route synthesized MnBi,” J. Supercond. Nov. Magn. 26 (11), 3161–3165 (2013).CrossRefGoogle Scholar
  7. 7.
    G. B. Street, J. C. Suits, and K. Lee, “New compounds in the Mn–X–Bi system, where X = Ni, Cu, Rh, or Pd,” Solid State Commun. 14 (1), 33–36 (1974).CrossRefGoogle Scholar
  8. 8.
    A. Szytula, H. Binczycka, and J. Todorovic, “Crystal and Magnetic structure of Ni2Mn5Bi4 and Cu4Mn3Bi4,” Solid State Commun. 38 (1), 41–43 (1981).CrossRefGoogle Scholar
  9. 9.
    N. A. Gokcen, “The Cu–Mn (copper–manganese) system,” J. Phase Equilib. 14 (1), 76–83 (1993).CrossRefGoogle Scholar
  10. 10.
    S. A. Demin, A. I. Ustinov, and K. B. Chuistov, “Plastic deformation and shape recovery in Mn–Cu alloys at the fct-fcc transformation under conditions of continuously acted stresses,” Fiz. Met. Metalloved. 52 (1), 203–205 (1981).Google Scholar
  11. 11.
    K. Tsuchiya, H. Sato, S. Edo, K. Marukawa, and M. Umemoto, “Effect of aging on martensitic transformation in γ-MnCu alloy,” Mater. Sci. Eng. A 285, 353–356 (2000).CrossRefGoogle Scholar
  12. 12.
    M. Fukuhara, F. Yin, Y. Ohsawa, and S. Takamori, “High-damping properties of Mn–Cu sintered alloys,” Mater. Sci. Eng. A 442, 439–443 (2006).CrossRefGoogle Scholar
  13. 13.
    P. Gibbs, T. M. Harders, and J. H. Smith, “The magnetic phase diagram of CuMn,” J. Phys. F.: Met. Phys. 15 (1), 213–223 (1985).CrossRefGoogle Scholar
  14. 14.
    D. J. Chakrabarti, and D. E. Laughlin, “The Bi–Cu (bismuth–copper) system,” Bull. Alloy Phase Diagr. 5 (2), 148–155 (1984).CrossRefGoogle Scholar
  15. 15.
    H. Okamoto, “Supplemental literature review of binary phase diagrams: Ag–Co, Ag–Er, Ag–Pd, B–Ce, Bi–La, Bi–Mn, Cu–Ge, Cu–Tm, Er–Y, Gd–Tl, H–La, and Hg–Te,” J. Phase Equilib. Diff. 36 (1), 10–21 (2015).CrossRefGoogle Scholar
  16. 16.
    C. P. Wang, W. J. Yu, Z. S. Li, X. J. Liu, A. T. Tang, and F. S. Pan, “Thermodynamic assessments of the Bi–U and Bi–Mn systems,” J. Nucl. Mater. 412, 66–71 (2011).CrossRefGoogle Scholar
  17. 17.
    K. Oikawa, Y. Mitsui, K. Koyama, and K. Anzai, “Thermodynamic assessment of the Bi–Mn system,” Mater. Trans. A 52 (11), 2032–2039 (2011).CrossRefGoogle Scholar
  18. 18.
    R. G. Pirich, G. Busch, W. Poit, and D. J. Larson, “The Bi–MnBi eutectic region of the Bi–Mn phase diagram,” Met. Trans. A. 11 (1), 193–194 (1980).CrossRefGoogle Scholar
  19. 19.
    K. Yoshida, T. Yamada, and Y. Furukawa, “Formation of a metastable alloy phase Mn3Bi in vacuum co-deposited films and its crystal structure,” Acta Metallurgica 34 (6), 969–979 (1986).CrossRefGoogle Scholar
  20. 20.
    C. S. Lakshmi and R. W. Smith, “Effect of rapid quenching on the magnetic and structural properties of Bi–MnBi composites,” J. Mater. Sci. 25 (1), 465–471 (1990).CrossRefGoogle Scholar
  21. 21.
    S. I. Ryabtsev, V. F. Bashev, G. A. Sergeev, F. F. Dotsenko, and P. S. Gusevik, “Structure and properties of melt-quenched manganese- and nickel-diamagnetic element systems,” Russ. Metall. (Metally), 2012 (7), 630–635 (2012).CrossRefGoogle Scholar
  22. 22.
    E. W. Collings, “Magnetic susceptibility of solid and liquid metals. I. Apparatus, technique and the temperature dependence of susceptibility of copper above room temperature”, Phys. Condens. Mater. 8 (4), 284–304 (1969).Google Scholar
  23. 23.
    S. A. Uporov, N. S. Uporova, V. E. Sidorov, A. Mikula, and P. Terzieff, “Paramagnetic susceptibility of Bi–Mn alloys in the liquid state,” J. Exp. Theor. Phys. 109 (2), 269–273 (2009).CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • O. V. Samoilova
    • 1
    Email author
  • E. A. Trofimov
    • 1
  • V. I. Geraskin
    • 1
  1. 1.South Ural State UniversityChelyabinsk, ZlatoustRussia

Personalised recommendations