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Structure and properties of high-speed steels in relation to the cooling rate in the temperature range of primary crystallization

  • Tool Steels
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    An increase of the cooling rate of high-speed steel at the primary crystallization temperature is accompanied by refining of grains and carbides.

  2. 2.

    At the maximum cooling rate, achieved by atomization of the liquid steel, part of the carbon and alloying elements is not transferred to the eutectic, which leads during subsequent sintering to precipitation of the finest carbides from the solid solution.

  3. 3.

    Sintered high-speed steel has higher strength and toughness and the same secondary hardness and heat resistance as the standard steel.

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Literature cited

  1. A. K. Petrov et al., "Study of atomized powders of high-speed steels and sintered products," Poroshk. Metall., No. 3, 9 (1971).

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  2. Yu. A. Geller et al., "Structure and properties of high-speed steels produced by sintering of atomized powders," in: Progressive Designs and Methods of Treatment in the Tool Industry [in Russian], Perm (1975), p. 41.

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Authors
  1. Yu. A. Geller
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  2. L. S. Kremnev
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  3. N. S. Salmanov
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Additional information

Deceased.

Moscow Machine-Tool Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 44–46, June, 1979.

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Geller, Y.A., Kremnev, L.S. & Salmanov, N.S. Structure and properties of high-speed steels in relation to the cooling rate in the temperature range of primary crystallization. Met Sci Heat Treat 21, 464–467 (1979). https://doi.org/10.1007/BF00780485

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  • DOI: https://doi.org/10.1007/BF00780485

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