Skip to main content
Log in

Gas-dynamic characteristics of powder particle formation during air atomization of iron-carbon alloys

  • Published:
Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

In the majority of cases the morphology and chemical composition of atomized powder particles are determined by the gas-dynamic conditions of nucleation and subsequent existence of the drops of liquid metal. The rheological characteristics of flow of the air stream past the drops of molten metal have a pronounced influence on the processes of heat and mass exchange between the particles and the surrounding atmosphere.

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

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Literature cited

  1. Yu. A. Gratsianov, B. N. Putimtsev, and A. F. Silaev, Metal Powders from Melts [in Russian], Metallurgiya, Moscow (1970).

    Google Scholar 

  2. O. S. Nichiporenko, Yu. I. Naida, and A. B. Medvedovskii, Atomized Metal Powders [in Russian], Naukova Dumka, Kiev (1980).

    Google Scholar 

  3. V. N. Oguenko and V. S. Sokolov, “Decarburization and oxidation of iron-carbon powders during their manufacture by the method of air atomization of molten metal,” in: Powder Metallurgy [in Russian], Metallurgiya, Moscow (1981), pp. 16–19.

    Google Scholar 

  4. A. A. Kazakov, Oxygen in Liquid Steel [in Russian], Metallurgiya, Moscow (1972).

    Google Scholar 

  5. R. H. Magarvey and B. W. Taylor, “Free fall breakup of large drops,” J. Appl. Phys.,27, No. 10, 1129–1136 (1956).

    Google Scholar 

  6. B. D. Katsnel'son and F. A. Timofeeva, “Investigation of convective heat exchange between particles and stream under nonsteady-state conditions,” Tr. TsKTI,12, No. 3, 119–156 (1949).

    Google Scholar 

  7. P. K. Chang, Separation of Flow, Vol. 3, Pergamon Press, New York (1968).

    Google Scholar 

  8. V. K. Shchitnikov, “Experimental investigation of heat exchange between a sphere and a turbulent air stream” Inzh.-Fiz. Zh., No. 6, 78–83 (1961).

    Google Scholar 

  9. V. H. MacAdams, Heat Transfer [Russian translation], Metallurgizdat, Moscow (1961).

    Google Scholar 

  10. D. A. Frank-Kamenetskii, Diffusion and Heat Conduction in Chemical Kinetics [in Russian], Nauka, Moscow (1967).

    Google Scholar 

  11. L. K. Steinberger and R. E. Treybal, “Mass transfer from a solid soluble sphere to a flowing liquid stream,” Am. Inst. Chem. Eng. J.,6, No. 2, 227–232 (1960).

    Google Scholar 

  12. L. F. Bogdandi and G. Yu. Engel', Reduction of Iron Ores [in Russian], Metallurgiya, Moscow (1971).

    Google Scholar 

  13. S. K. Vig and W.-K. Lu, “Oxidation kinetics of free-falling iron droplets,” J. Iron Steel Inst.,209, No. 8, 630–636 (1971).

    Google Scholar 

  14. A. A. Kazakov, Continuous Steelmaklng Processes [in Russian], Metallurgiya, Moscow (1977).

    Google Scholar 

  15. E. R. Eckert and G. Soehngen, “Distribution of heat transfer coefficients around circular cylinder in cross flow of Reynolds number from 20 to 500,” Trans. Am. Soc. Mech. Eng.,74, No. 3, 343–347 (1961).

    Google Scholar 

  16. I. R. Cary, “The determination of local forced convection coefficients for spheres,” Trans. Am. Soc. Mech. Eng.,75, No. 4, 483–487 (1962).

    Google Scholar 

  17. C. C. Winding and A. I. Cheney, “Mass and heat transfer in tube banks,” Ind. Eng. Chem.,40, No. 6, 1087–1094 (1948).

    Google Scholar 

  18. L. A. Baker, W. A. Warner, and A. E. Jenkins, “Kinetics of decarburization of liquid iron in an oxidizing atmosphere using the levitation technique,” Trans. AIME,230, No. 6, 1228–1235 (1964).

    Google Scholar 

  19. O. A. Esin and P. V. Gel'd, Physical Chemistry of Pyrometallurgical Processes [in Russian], Vol. 2, Metallurgiya, Moscow (1966).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Translated from Poroshkovaya Metallurgiya, No. 8(248), pp. 10–16, August, 1983.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Raspopov, N.A. Gas-dynamic characteristics of powder particle formation during air atomization of iron-carbon alloys. Powder Metall Met Ceram 22, 605–610 (1983). https://doi.org/10.1007/BF00792316

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00792316

Keywords

Navigation