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Formation of a Corrosion-Resistant Layer on Steel by Reaction with a Si3N 4 ― Al2O3 Composite under the Conditions of Light-Thermal Treatment

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Abstract

The formation of a surface layer on low-alloyed steel during light-thermal treatment with a composite material based on Si3N4 ― Al2O3 was investigated. The working surfaces were studied using metallographic, x-ray diffraction, and electron-probe microanalysis. It was found that the corrosion-resistant phases Al2SiO5, (Fe, Cr)2O3, (Cr, Al) 2O3, and NiCrO4 formed in the alloyed layer, increasing its microhardness by 2-5 times and its corrosion resistance in sea water by more than two orders of magnitude.

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Authors and Affiliations

  1. Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, Kiev 142, 03142, Ukraine

    Irina A. Podchernyaeva & Vladimir A. Lavrenko

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  1. Irina A. Podchernyaeva
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  2. Vladimir A. Lavrenko
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Podchernyaeva, I.A., Lavrenko, V.A. Formation of a Corrosion-Resistant Layer on Steel by Reaction with a Si3N 4 ― Al2O3 Composite under the Conditions of Light-Thermal Treatment. Powder Metallurgy and Metal Ceramics 40, 44–48 (2001). https://doi.org/10.1023/A:1011303704917

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  • DOI: https://doi.org/10.1023/A:1011303704917

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