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Extreme diffusional activity in steel in a state of transformation

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Metal Science and Heat Treatment Aims and scope

Conclusions

The pretransformation state in steel is characterized by an increased diffusional activity of the iron atoms. The temperature range of this state may be utilized for plastic deformation and heat treatment in steels. The diffusional mobility of the atoms and the plasticity of the steel in the pretransformation state (at 700–720 and 780–800°C for carbon and high speed steel, respectively) are approximately the same as those at 1100–1200°C.

Utilization of the pretransformation state for technological purposes permits economies in the use of energy, due to the decreased process temperatures.

The narrower temperature interval for commercial processing (±3–5°C) should not be an obstacle to its use in practice, since presently existing equipment permits temperature regulation with an accuracy up to ±1°C.

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Authors
  1. B. G. Sazonov
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 13–15, July, 1990.

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Sazonov, B.G. Extreme diffusional activity in steel in a state of transformation. Met Sci Heat Treat 32, 483–485 (1990). https://doi.org/10.1007/BF00700314

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  • DOI: https://doi.org/10.1007/BF00700314

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