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Application of dynamic hot pressing in powder metallurgy

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Summary

  1. 1.

    An equation was derived describing the relationship between γ and W for the dynamic hot pressing of various materials.

  2. 2.

    The influence of heating temperature, specimen proportions, prior pressing, and the scale factor on the densification process of iron powder was determined.

  3. 3.

    Dynamic hot pressing was employed for producing specimens of various porosities, including 0%; compared with sintered specimens, their σB was found to be higher at II<15% and their ductility lower at all II values.

  4. 4.

    Recrystallization annealing increases σB and percentage elongation; at II<6%, the latter exceeds the ductility of sintered specimens.

  5. 5.

    Dynamic hot pressing can advantageously be employed for producing nonporous or low-porosity (below 10–15%) parts.

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Literature cited

  1. I. D. Radomysel'skii, Collection: Powder Metallurgy [in Russian] (Kiev Management Board of the Mashprom Scientific-Technical Society, 1961), p. 11.

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Authors and Affiliations

  1. Novocherkassk Engineering Institute, USSR

    Yu. G. Dorofeev & N. T. Zherditskii

Authors
  1. Yu. G. Dorofeev
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  2. N. T. Zherditskii
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Additional information

Translated from Poroshkovaya Metallurgiya, No. 7 (43), pp. 22–31, July, 1966.

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Dorofeev, Y.G., Zherditskii, N.T. Application of dynamic hot pressing in powder metallurgy. Powder Metall Met Ceram 5, 534–540 (1966). https://doi.org/10.1007/BF00780111

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  • DOI: https://doi.org/10.1007/BF00780111

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