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Cementite-type carbide in the surface layer of cold-rolling rolls

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

Conclusions

  1. 1.

    In the surface layer of rolls used for cold rolling and quenched after heating with industrial-frequency electric current, a cementite-type carbide is contained, which has high values of the lattice parametersa, b, and c indicating that it is alloyed. The degree of alloying linearly increases with distance as one moves from the interior to the surface.

  2. 2.

    The lowest concentration of the alloyed cementite (4%) is observed at a distance of 5 mm from the surface of the roller, whereas the highest value (11%) is observed at a distance of 50 mm.

  3. 3.

    The peak on the concentration-distribution curve of cementite, the inflection on the hardenability curve, as well as the greatest amount of the cementite substructure (maximum line width) are observed at a distance of 30 mm from the surface of the roll in the bainitic transformation region.

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Literature cited

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Authors
  1. B. A. Brusilovskii
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  2. A. Ya. Shashko
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Additional information

Kramatorsk Industrial Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 2–4, November, 1992.

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Brusilovskii, B.A., Shashko, A.Y. Cementite-type carbide in the surface layer of cold-rolling rolls. Met Sci Heat Treat 34, 661–664 (1992). https://doi.org/10.1007/BF00712422

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  • DOI: https://doi.org/10.1007/BF00712422

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