Soviet Powder Metallurgy and Metal Ceramics

, Volume 24, Issue 7, pp 509–512 | Cite as

Structural and morphological investigations of an atomized iron powder. I. Investigation of particles of a starting powder

  • N. Ch. Pioro
  • É. Ch. Pioro
  • A. G. Zherdin
  • V. P. Smirnov
Theory, Production Technology, and Properties of Powders and Fibers
  • 18 Downloads

Conclusions

The particles of practically all fractions of a pig iron powder generally have internal voids and a conchoidal structure. The voids in the particles form as a result of a carbon oxidation reaction taking place during the atomization of molten metal, which is accompanied by evolution of gaseous products. The degree of oxidation of fine atomized powder particles is greater than that of large ones. The oxide phase in the powder is composed of almost pure iron oxides: FeO, Fe3O4, and, to a smaller extent,α-Fe2O3.

Keywords

Fe3O4 Iron Oxide Oxidation Reaction Gaseous Product Powder Particle 

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Literature cited

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    É. Ch. Pioro, N. Ch. Pioro, A. G. Zherdin, and V. P. Smirnov, “Properties of an atomized iron powder of branched particle shape,” Poroshk. Metall., No. 10, 1–7 (1984).Google Scholar
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    É. Ch. Pioro, N. Ch. Pioro, and A. V. Martyshev, “Mechanism of carbon oxidation during the atomization of iron-carbon melts and formation of gas voids inpowder particles,” in: The Pouring of Boiling Steel [in Russian], Inst. Probl. Litiya, Akad. Nauk Ukr. SSR, Kiev (1984), pp. 89–98.Google Scholar
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Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • N. Ch. Pioro
    • 1
  • É. Ch. Pioro
    • 1
  • A. G. Zherdin
    • 1
  • V. P. Smirnov
    • 1
  1. 1.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine

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