Abstract
The structure and magnetic properties of Fe-M (M = Zr, Hf, Co or Si) alloy powders produced by mechanical alloying (MA) of elemental powders or a mixture of elemental powders and alloy powders have been examined. The MA Fe-Zr and Fe-Hf powders have a non-equilibrium b.c.c. phase in the composition range above 90 at% Fe. The coercivity of the MA Fe-Zr and Fe-Hf powders exhibits a minimum value (1300 A m−1) combined with a high magnetization of 2.2×10−4 Wb m kg−1 at 95 at % Fe, which corresponds to the concentration of zero magnetostriction. Although the compacts made from the MA b.c.c. Fe-Zr powders do not exhibit good soft magnetic properties, the permeability of the compacts made from the MA Fe-Co powders annealed at 1173 K for 18 ks in H2 is nearly the same as that of the alloy ingot produced by conventional casting followed by the same annealing treatment.
Similar content being viewed by others
References
J. S. Benjamin, Met. Trans. 1 (1970) 2943.
A. Y. Yermakov, Y. Y. Yurchikov and V. A. Barinov, Phys. Met. Metall. 52 (6) (1981) 50.
C. C. Koch, O. B. Cavin, C. G. McKamey and J. O. Scarbrough, Appl. Phys. Lett. 43 (1983) 1013.
W. L. Johnson, Progr. Mater. Sci. 30 (1986) 81 and references therein.
E. Hellstern and L. Schultz, Appl. Phys. Lett. 48 (1986) 124.
Idem, ibid. 49 (1986) 1163.
C. Michaelsen and E. Hellstern, J. Appl. Phys. 62 (1987) 117.
E. Hellstern and L. Schultz, ibid. 63 (1988) 1408.
Idem, Mater. Sci. Eng. 97 (1988) 39.
W. Biegel, H. U. Krebs, C. Michaelsen, H. C. Freyhardt and E. Hellstern, ibid. 97 (1988) 59.
W. Krauss, C. Politis and P. Weimar, Met. Powder Rep. 43 (1988) 231.
J. Eckert, L. Schultz and K. Urban, J. Less-Common Metals 145 (1988) 283.
G. Ennas, M. Magini, F. Padella, P. Susini, G. Boffitto and G. Licheri, J. Mater. Sci. 24 (1989) 3053.
H. U. Kreb, J. Less-Common Metals 145 (1988) 97.
T. B. Massalski, “Binary Alloy Phase Diagrams” (ASM, Ohio, 1986) p. 1125.
J. Bottiger, K. Dyrbye, K. Pamous and R. Poulsen, Phil. Mag. A59 (1989) 569.
N. Kataoka, M. Hosokawa, A. Inoue and T. Masumoto, Jpn. J. Appl. Phys. 28 (1989) L462.
Idem, Mater. Trans., JIM 31 (1990) 429.
Author information
Authors and Affiliations
Additional information
On leave from ALPS Electric Co. Ltd, Nagaoka 940, Japan.
Rights and permissions
About this article
Cite this article
Kataoka, N., Suzuki, K., Inoue, A. et al. Magnetic properties of iron-base b.c.c. alloys produced by mechanical alloying. J Mater Sci 26, 4621–4625 (1991). https://doi.org/10.1007/BF00612396
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF00612396