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Reaction of a thermal insulating coating with the surface of electrical engineering steel during high-temperature annealing

  • High-Precision Steels and Alloys
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    The basic amount of silicon dioxide necessary to form a primer magnesium silicate layer on the surface of electrical engineering steel forms during HTA with oxidation of silicon by water vapor which is in the coating composition based on magnesium hydroxide.

  2. 2.

    With annealing of metal in a gas medium having a low moisture content the reaction front for magnesium silicate formation hardly propagates into the depth of the metal; with annealing in a moist medium there is introduction of silicate phase sections into the metal at a distance from the surface up to 10 μm.

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Literature cited

  1. K. Narita, Crystalline Structure of Nonmetallic Inclusions in Steel [in Russian], Metallurgiya, Moscow (1969).

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  2. V. G. Borisenko, L. A. Shvartsman, V. M. Segal', etal., Formation of Glass Ceramic Coatings on Anisotropic Electrical Engineering Steel [in Russian], ChERMETINFORMATsIYa, Moscow (1980).

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  3. G. A. Brashivan, L. F. Antonova, and N. T. Andrianov, "Effect of stresses created by coatings on the structure and properties of transformer steel", in: The Structure and Properties of Electrical Engineering Steel [in Russian], Izd. Akad. Nauk SSSR, Sverdlovsk (1977).

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  4. V. G. Borisenko, L. A. Shvartsman, R. B. Puzhevich, and Z. P. Ventskovich, "Physicochemical features of metal-ceramic composite formation on anisotropic electrical engineering steels", in: Composite High-Precision Materials [in Russian], Metallurgiya, Moscow (1983).

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Authors
  1. R. B. Puzhevich
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  2. V. G. Borisenko
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  3. L. A. Shvartsman
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Additional information

Ural Scientific-Research Institute of Ferrous Metallurgy (Ura1NIIChERMET). I. P. Bardin Central Scientific-Research Institute of Ferrous Metallurgy (TsNIIChERMET), Moscow. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 52–54, September, 1986.

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Puzhevich, R.B., Borisenko, V.G. & Shvartsman, L.A. Reaction of a thermal insulating coating with the surface of electrical engineering steel during high-temperature annealing. Met Sci Heat Treat 28, 687–690 (1986). https://doi.org/10.1007/BF00742753

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  • DOI: https://doi.org/10.1007/BF00742753

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