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Comparative evaluation of the crack resistance of tool steels

  • Tool Steels
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    It is recommended to use as parameters for calculating crack resistance the nominal stress intensity factors: KJ, determined by the method of the J-integral, taking crack growth into account, and Kδ, calculated according to the critical crack opening δc using the theoretical values of the rotational factor. The use of Kδ is preferable because of the conservativeness of the evaluation in the range of operating temperatures of heavy-duty hot-forging dies.

  2. 2.

    In regard to crack resistance in the range of the operating temperatures of forging dies, steel 5KhNM is better than steel 4Kh5V2FS.

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Literature cited

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Authors
  1. L. F. Kratovich
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Additional information

Plant and Technical College of the Production Association "Leningrad Metal-Working Plant.". Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 45–48, August, 1984.

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Kratovich, L.F. Comparative evaluation of the crack resistance of tool steels. Met Sci Heat Treat 26, 623–626 (1984). https://doi.org/10.1007/BF00707805

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  • DOI: https://doi.org/10.1007/BF00707805

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