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Influence of the original structure, heat-treatment cycles, and deformation on the mechanical properties of Kh12M steel

  • Tool Steels
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    In the as-received condition pearlite of different degrees of dispersion, which has a substantial influence on the phase composition and properties of the steel after hardening, is observed in the structure of Kh12M steel.

  2. 2.

    The preliminary thermomechanical working cycle developed (heating of the billets to 1020–1050°C, deformation by forging with ε=25–30%, temperature of the finish of forging of not less than 870°C, and air cooling) makes it possible to eliminate nonuniformity in the pearlite, to obtain a structure with a constant degree of dispersion, and to increase the mechanical properties and life of a forming tool of Kh12M steel designed for cold extrusion.

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Literature cited

  1. É. Zhmikhorskii, "Fatique strength in compression of tool steels," Metalloved. Term. Obrab. Met., No. 10, 24–28 (1962).

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  2. V. F. Moiseev, A. T. Evtushenko, and B. M. Ivanushkin, "The resistance of tool steels to plastic deformation," Metalloved. Term. Obrab. Met., No. 2, 14–19 (1973).

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  3. Ya. R. Rauzin, The Heat Treatment of Chromium Steel [in Russian], Mashgiz, Moscow (1963).

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  4. S. A. Saltykov, Stereometric Metallography [in Russian], Metallurgiya, Moscow (1976).

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Authors
  1. V. A. Evstratov
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  2. V. I. Eremin
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  3. V. M. Pivovarov
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Additional information

Kharkov Polytechnic Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 8–10, April, 1986.

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Evstratov, V.A., Eremin, V.I. & Pivovarov, V.M. Influence of the original structure, heat-treatment cycles, and deformation on the mechanical properties of Kh12M steel. Met Sci Heat Treat 28, 237–239 (1986). https://doi.org/10.1007/BF00707645

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  • DOI: https://doi.org/10.1007/BF00707645

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