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Determination of the critical inclusion size with respect to void formation during hot working

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Abstract

A theory for determining the critical inclusion size with respect to void formation during hot working operation is presented. The theoretical model assumes that the relationship between inclusion size (r) and number (n) is of the typen = 1/rα. Equations are deduced for the three cases α = 2,α = 3 and α = 4. The most reliable results are obtained if α equals 3 or 4. The critical inclusion size is of the order of 2.5 to 3.5 μm for strains of about 0.7.

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Authors and Affiliations

  1. Department of Ferrous Metallurgy, Royal Institute of Technology, Stockholm, Sweden

    Björn-Ivar Klevebring (Research Assistant)

  2. Division of Planning and Operations Research, Research Institute of National Defence, Stockholm

    Erik Bogren (Operations Research Engineer)

  3. Special Steel Division, Stora Kopparberg, Söderfors, Sweden

    Rune Mahrs (Metallurgical Engineer)

Authors
  1. Björn-Ivar Klevebring
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  2. Erik Bogren
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  3. Rune Mahrs
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Additional information

Formerly with the Department of Ferrous Metallurgy, Royal Institute of Technology, Stockholm.

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Klevebring, BI., Bogren, E. & Mahrs, R. Determination of the critical inclusion size with respect to void formation during hot working. Metall Trans A 6, 319 (1975). https://doi.org/10.1007/BF02667285

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  • DOI: https://doi.org/10.1007/BF02667285

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