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Metalographic study of burning of silumin


  1. 1.

    Burning of Al−Si-alloys which develops as coalescence of silicon is due to development of silicon and hydrogen atom diffusion, i.e., permanent impurities in aluminum alloys. The rate of the process is governed by hydrogen content.

  2. 2.

    The more hydrogen Silumin contains the less is the effect of external influences (temperature, soaking time) causing burning.

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Literature cited

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    I. V. Oryshich and V. N. Kharchenko, "Formation of burned structure in cast Silumins A19 and VAL5," Metalloved. Term. Obrab. Met., No. 8, 54–57 (1973).

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    M. B. Al'tman, Metallurgy of Cast Aluminum Alloys [in Russian], Metallurgiya, Moscow (1972).

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    L. F. Mondolfo, Structure and Properties of Aluminum Alloys [Russian translation], Metallurgiya, Moscow (1979).

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    V. K. Afanas'ev, "Features of the effect of hydrogen in the decomposition of aluminum solid solutions," Fiz. Khim. Obrab. Mater., No. 4, 67–75 (1977).

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    V. I. Dobatkin, R. M. Gabidullin, B. A. Kolachev, and G. S. Makarov, Gases and Oxides in Wrought Aluminum Alloys [in Russian], Metallurgiya, Moscow (1976).

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    W. Rostoker and J. R. Dvorak, Interpretation of Metallographic Structures, Academic Press (1964).

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Additional information

Siberian Metallurgical Institute, Novokuznetsk. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 62–64, April, 1984

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Afanas'ev, V.K., Stroganova, S.A. Metalographic study of burning of silumin. Met Sci Heat Treat 26, 328–331 (1984).

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  • Hydrogen
  • Aluminum
  • Silicon
  • Burning
  • Hydrogen Atom