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  1. No Access

    Article

    Influence of Machining Modes and Negative Temperature on the Static Bending Strength of Carbon Fiber Reinforced Plastics

    The paper presents the results of three-point bending testing to assess changes in the strength of carbon fiber reinforced plastics produced by milling in various cutting modes. Tests are carried out using sam...

    I. S. Bolotnikov, E. A. Kosenko, P. E. Demin in Polymer Science, Series D (2023)

  2. No Access

    Article

    Choice of Cutting Conditions for Basalt Fiber Reinforced Polymers

    Abstract—The prospects of using basalt fiber reinforced polymers (BFRPs) in various industries are analyzed. The types of cutting tools used for machining of basalt-fiber-based PCMs are investigated. The results ...

    I. S. Bolotnikov, E. A. Kosenko, P. E. Demin in Russian Metallurgy (Metally) (2022)

  3. No Access

    Article

    Surface Alloying of Carbon Steel with Chromium, Nickel, and Nitrogen

    Attention focuses on the surface saturation of carbon steel with chromium and nickel, with simultaneous nitriding. For surface saturation, slip based on nickel and chromium-oxide powder mixture is employed. Th...

    L. G. Petrova, P. E. Demin, A. S. Sergeeva, A. Yu. Malakhov in Russian Engineering Research (2021)

  4. No Access

    Article

    Improving the Thermal Stability of Hot-Working Dies

    By cyclic gas treatment in ammonia and in air, a composite surface layer with controlled structure may be formed on die steel. Thanks to the catalytic properties of the oxide film that appears, an extended mul...

    L. G. Petrova, V. A. Aleksandrov, P. E. Demin… in Russian Engineering Research (2020)

  5. No Access

    Article

    Structure of the Modified Layer Prepared by Nitriding of Carbon Steel with a Zinc-Filled Coating

    The nitriding of a grade 45 carbon steel with a zinc-filled coating (ZFC), which was preliminary formed by cold galvanizing, is considered. The microstructure and the chemical and phase compositions of the mod...

    L. G. Petrova, P. E. Demin, G. Yu. Timofeeva… in Russian Metallurgy (Metally) (2019)

  6. No Access

    Article

    Influence of Nitriding on the Wear Resistance and Adhesion of Zinc Coatings on Steel

    Chemicothermal treatment of steel is considered: specifically, diffusional zinc coating in a nitrogen-bearing medium; and nitriding of a preformed zinc-filled coating. The structure of the modified layers is i...

    L. G. Petrova, P. E. Demin, G. Yu. Timofeeva… in Russian Engineering Research (2019)

  7. No Access

    Article

    Improving the Properties of Low-Alloy and Carbon Steel Tools by Cyclic Nitriding

    Cyclic nitriding characterized by uniform alternation of cycles with high and low nitrogen potential is considered. In the active stage of the process, the surface layer of the steel is saturated with nitrogen...

    I. S. Belashova, L. G. Petrova, V. D. Aleksandrov… in Russian Engineering Research (2018)

  8. No Access

    Article

    Application of diffusion techniques for formation of zinc coatings to improve corrosion resistance of structural steels

    A technique for the formation of diffusion layers based on zinc on the surface of low-carbon low-alloy steels for their corrosion protection is considered. The possibility of the formation of dense corrosion-r...

    L. G. Petrova, P. E. Demin, S. I. Barabanov, A. V. Kosachev in Polymer Science, Series D (2017)

  9. No Access

    Article

    Thermochemical treatment of steels in the plasma of a hydrostatic glow-spark discharge

    This article presents results from studies of the thermochemical treatment of steel parts based on their nitriding in the plasma of a hydrostatic glow-spark discharge (GSD). The article examines the nitriding ...

    L. G. Petrova, V. A. Aleksandrov, P. E. Demin in Metal Science and Heat Treatment (2012)