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Influence of features of the original structure on the phase transformations and properties of steel in heat treatment

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Conclusions

  1. 1.

    The original condition of the steel influences not only the kinetics of phase transformations but also the position of the critical points, the degree of recrystallization at a certain temperature in the intercritical temperature range, the composition of the phases formed, and the morphological characteristics of the structures formed. As the result the use of the Fe-C phase diagram for a quantitative description of the process of the α→γ-transformation even at low heating rates is invalid.

  2. 2.

    In the development of hardening cycles from the intercritical temperature range and thermocyclic treatment cycles it is ncessary to take into consideration the actual structure. of the steel, which may have a significant influence on development of the α→γ-transition and on the final properties of the parts.

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Literature cited

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Authors
  1. S. S. D'yachenko
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Additional information

Kharkov Automobile and Road Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 2–4, October, 1987.

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D'yachenko, S.S. Influence of features of the original structure on the phase transformations and properties of steel in heat treatment. Met Sci Heat Treat 29, 715–717 (1987). https://doi.org/10.1007/BF00707725

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  • DOI: https://doi.org/10.1007/BF00707725

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