Skip to main content
Log in

Particle interaction in the atomization of high-speed steel

  • Theory, Production Technology, and Properties of Powders and Fibers
  • Published:
Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

Liquid, solid, and semisolidified particles in an atomized metal-gas spray experience numerous collisions, which exert a strong influence on the end structure of the bulk of the resultant powder. Very fine, rapidly solidified particles colliding with larger drops act as foreign inner centers of solidification. Collisions between previously solidified particles and drops of smaller weight are accompanied by a sharp increase in cooling rate during solidification (to 106–107 deg C/sec) and the formation on the particles of shells with a very fine-columnar structure (without any visible-signs of primary carbide evolution).

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

    Google Scholar 

  2. A. K. Petrov, I. S. Miroshnichenko, V. V. Parabin, et al., “Solidification of metal powders during the atomization of a liquid phase,” Poroshk. Metall., No. 1, 16–20 (1973).

    Google Scholar 

  3. A. K. Petrov, E. N. Smirnova, I. Ya. Kondratov, and L. V. Ocheretovaya, “Effect of particle size on the properties of atomized high-speed steel powders and blanks produced from such powders,” Poroshk. Metall., No. 5, 18–23 (1976).

    Google Scholar 

  4. G. L. Babukha and A. A. Shraiber, Interaction in Two-Phase Streams between Particles of Various Sizes [in Russian], Naukova Dumka, Kiev (1972).

    Google Scholar 

  5. V. M. Blekherov, V. G. Golubkov, and A. K. Petrov, “Motion and heat exchange behavior of atomized particles under gas-atomization conditions,” in: Production, Properties, and Applications of Atomized Metal Powders [in Russian], Inst. Probl. Materialoved., Akad. Nauk Ukr. SSR, Kiev (1979), pp. 3–21.

    Google Scholar 

  6. B. H. Kear, P. R. Holiday, and A. R. Cox, “On the microstructure of rapidly solidified IN-100 powders,” Metall. Trans. A,10, No. 2, 191–197 (1979).

    Google Scholar 

  7. B. Chalmers, Theory of Solidification [Russian translation], Metallurgiya, Moscow (1968).

    Google Scholar 

  8. M. Flemings, Solidification Processes [Russian translation], Mir, Moscow (1977).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Translated from Poroshkovaya Metallurgiya, No. 3(255), p. 7–13, March, 1984.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ozerskii, A.D., Fischmeister, H., Olsson, L. et al. Particle interaction in the atomization of high-speed steel. Powder Metall Met Ceram 23, 176–180 (1984). https://doi.org/10.1007/BF00791795

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00791795

Keywords

Navigation