Effect of the Charge Mixing Time on the Magnetic Hysteretic Properties of a Hard Magnetic Powder Fe–30% Cr–8% Co Alloy

  • 1 Accesses


The elemental mapping of a hard magnetic powder Fe–30Cr–8Co alloy prepared at different charge mixing times allows us to find that a homogeneous distribution of the components is reached upon mixing for 60 min. The dependence of the magnetic hysteretic properties of the powder Fe–30Cr–8Co alloy samples sintered at 1200°C on the mixing time exhibits logarithmic behavior. At the same time, the magnetic hysteretic properties of the same samples sintered at 1400°C are higher because of lower residual porosity and are independent on the charge mixing time.

This is a preview of subscription content, log in to check access.

Access options

Buy single article

Instant unlimited access to the full article PDF.

US$ 39.95

Price includes VAT for USA

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.


  1. 1

    H. Kaneko, M. Homma, and K. Nakamura, “New ductile permanent magnet of Fe–Cr–Co system,” AIP Conf. Proc. 5, 1088–1092 (1972).

  2. 2

    H. Kaneko, M. Homma, M. Okada, and T. Fukunada, “Fe–Cr–Co permanent magnet alloys containing Nb and Al,” IEEE Trans. Magn. 11 (5), 1440–1442 (1975).

  3. 3

    S. Jin and G. Y. Chin, Fe—Cr—Co magnets, IEEE Trans. Magn. 23 (5), 3187–3192 (1987).

  4. 4

    V. S. Boruta, B. E. Vintaikin, M. A. Libman, and N. N. Potapov, “Magnetically hard Fe–Cr–Co alloys as universal materials for the rotors of synchronous hysteresis motors,” Elektrichestvo, No. 2, 52–54 (1992).

  5. 5

    E. V. Artamonov, M. A. Libman, and N. N. Rudanovskii, “Magnetically hard materials for the motors of synchronous hysteresis electric motors,” Steel Trans. 37 (6), 547–551 (2007).

  6. 6

    E. V. Belozerov, M. A. Uimin, A. E. Ermakov, V. V. Serikov, N. M. Kleinerman, and G. V. Ivanova, “Effect of tungsten and gallium on the structure and magnetic and mechanical properties of Fe–Cr–Co alloys,” Phys. Met. Metallogr. 106 (5), 472–480 (2008).

  7. 7

    E. V. Belozerov, G. V. Ivanova, N. N. Shchegoleva, V. V. Serikov, N. M. Kleinerman, A. V. Vershinin, V. S. Gaviko, and N. V. Mushnikov, “The role of plastic deformation in the creation of high strength in hard magnetic alloys Fe–Cr–Co–W–Ga,” Phys. Met. Metallogr. 113 (3), 312–318 (2012).

  8. 8

    M. L. Green, R. C. Scherwood, and C. C. Wong, “Powder metallurgy processing of CrCoFe permanent magnet alloys containing 5–25 wt % Co,” J. Appl. Phys. 53 (3), 2398–2400 (1982).

  9. 9

    S. Jin, G. Y. Chin, and B. C. Wonsiewicz, “A low cobalt ternary Cr–Co–Fe alloy for telephone receiver magnet use,” IEEE Trans. Magn. 16 (1), 139–146 (1980).

  10. 10

    P. J. Alberry and C. W. Haworthe, “Interdiffusion of Cr, Mo, and W in iron”, Metal Sci., No. 8, 407–412 (1974).

  11. 11

    D. Graham and D. H. Tomlin, Philos. Mag. 8, 1581 (1963).

  12. 12

    D. W. James and G. M. Leak, Philos. Mag. 14, 701 (1966).

  13. 13

    A. W. Bowen and G. M. Leak, “Solute diffusion in alpha- and gamma-iron,” Met. Trans. 1 (6), 1695–1700 (1970).

Download references

Author information

Correspondence to M. I. Alymov.

Additional information

Translated by N. Kolchugina

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Alymov, M.I., Zelenskii, V.A., Milyaev, I.M. et al. Effect of the Charge Mixing Time on the Magnetic Hysteretic Properties of a Hard Magnetic Powder Fe–30% Cr–8% Co Alloy. Russ. Metall. 2019, 1190–1194 (2019) doi:10.1134/S0036029519110028

Download citation


  • powder metallurgy
  • hard magnetic Fe–Cr–Co alloys
  • mixing
  • element distribution
  • magnetic hysteretic properties