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Temper brittleness of Cr-Mo-V steel

  • Strength Properties
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Steels of the 15Kh3MFA type are susceptible to embrittlement, which reaches a peak at a given tempering temperature. The upper limit of the peak (T50) coincides with the temperature at which the material begins to weaken.

  2. 2.

    The height of the peak and the tempering temperature corresponding to it increase almost linearly when the vanadium concentration is raised from 0 to 0.55%, but they are independent of the phosphorus concentration within limits of 0.005–0.022%.

  3. 3.

    Temper brittleness of the steel investigated depends on the change in the carbide phase (from cementite to special carbides) that occurs with retention of the dislocation arrays preferentially in the boundaries of fragments.

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Literature cited

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Authors
  1. A. M. Morozov
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  2. V. A. Nikolaev
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  3. A. M. Parshin
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  4. V. V. Rybin
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 38–42, June, 1977.

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Morozov, A.M., Nikolaev, V.A., Parshin, A.M. et al. Temper brittleness of Cr-Mo-V steel. Met Sci Heat Treat 19, 461–465 (1977). https://doi.org/10.1007/BF00713083

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  • DOI: https://doi.org/10.1007/BF00713083

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