The effect of compaction on the porosity and magnetic properties of materials sintered from iron powder is studied. It is shown that porosity, when it is more than 6.5%, is the major factor that determines the magnetic flux density of the material. With lower porosity, the magnetic properties are greatly influenced by another structural factor—strain accumulated during additional compaction.
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V. V. Polyakov and A. V. Egorov, “Initial magnetic susceptibility of ferromagnetic materials,” Fiz. Met. Metalloved., No. 1, 172–174 (1993).
G. Schlieper, “Wichmagnetische Sinterteile,” Konstr. Elem. Meth., 20, No. 4, 92–94 (1983).
K. Kobayashi, S. Matsumoto, and M. Hasebe, “Sintered magnetically soft Fe–Si alloy,” Toschiba Rev., 40, No. 1, 65–68 (1985).
A. D. Roninson, A. A. Laansoo, A. E. Ritso, and R. A. Siimar, “Effect of porosity on the magnetic properties of magnetically soft composites,” Tr. Tallin. Politekh. Inst., No. 566, 63–77 (1984).
D. Raybould and K. S. Tan, “Factors affecting the magnetic properties of consolidated amorphous powder cores,” J. Mater. Sci., 20, No. 2, 2776–2786 (1985).
M. B. Shtern, G. G. Serdyuk, L. A. Maksimenko, et al., Phenomenological Theories of Powder Pressing [in Russian], Naukova Dumka, Kiev (1982), p. 140.
G. A. Baglyuk and V. L. Yurchuk, “Calculation of the plastic flow of a porous material in open-die stamping,” Powder Metall. Met. Ceram., 36, No. 7–8, 353–358 (1997).
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Translated from Poroshkovaya Metallurgiya, Vol. 48, No. 11–12 (470), pp. 65–69, 2009.
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Baglyuk, G.A., Panasyuk, O.A., Vlasova, O.V. et al. Effect of compaction conditions on the properties of magnetically soft materials sintered from iron powder. Powder Metall Met Ceram 48, 663–666 (2009). https://doi.org/10.1007/s11106-010-9184-x
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DOI: https://doi.org/10.1007/s11106-010-9184-x