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Effect of preliminary cold deformation on carburizing of steel

  • Chemicothermal Treatment
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Preliminary cold plastic deformation accelerates saturation with carbon under certain carburizing conditions.

  2. 2.

    The effect is maximum with 25% deformation. The results obtained are confirmed by limited-area spectral analysis, microstructural analysis, electron microscopic examination, and by the change in hardness.

  3. 2.

    It was found that the acceleration of carburizing as the result of preliminary plastic deformation is not connected with the surface finish.

  4. 3.

    It is proposed that the acceleration of the saturation process after 25% deformation is due to the formation of a stable polygonal structure that is retained after the α→γ transformation during heating for carburizing and with changes in the process of adsorption and chemisorption on the surface of the metal due to particular characteristics of the polygonal structure.

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Literature cited

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Additional information

There have been other theoretical explanations of the effect besides the one presented in this article.

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 22–26, December, 1971.

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Lakhtin, Y.M., Kal'ner, V.D., Sedunov, V.K. et al. Effect of preliminary cold deformation on carburizing of steel. Met Sci Heat Treat 13, 1016–1020 (1971). https://doi.org/10.1007/BF00664996

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  • DOI: https://doi.org/10.1007/BF00664996

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