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within S. V. Ovsepyan Remove this filter Industrial Chemistry/Chemical Engineering Remove this filter Inorganic Chemistry Remove this filter

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  1. No Access

    Article

    Investigation of the Nitride Phase in a Heat-Resistant VZh171 Alloy of the Ni–Co–Cr–W–Ti System, Hardened by Internal Nitriding

    By means of the X-ray microspectral analysis and scanning and transmission electron microscopy, we investigate the composition of hardening phase particles—nitrides—after internal nitriding and subsequent heat...

    S. V. Ovsepyan, Yu. R. Kolobov, M. V. Akhmedzyanov… in Inorganic Materials: Applied Research (2022)

  2. No Access

    Article

    Features of Deformation of High-Alloy Heat-Resistant Nickel Alloys near the Complete Dissolution Temperature of the Strengthening γ' Phase

    The features of deformation of high-alloy heat-resistant nickel alloys for disks of gas turbine engines of the Ni–Co–Cr–W–Al–Nb–Ti–Mo system (EP962, EK151, and EP975 type) have been studied near the temperatur...

    S. V. Ovsepyan, B. S. Lomberg, M. N. Letnikov… in Inorganic Materials: Applied Research (2021)

  3. No Access

    Article

    Development of Ni-Base Superalloy with Operating Temperature up to 800°C for Gas Turbine Disks

    Abstract—The results of development of new nickel-base superalloy having an operating temperature up to 800°C for gas turbine disks have been presented. Structures, mechanical properties, and phase transformation...

    M. M. Bakradze, S. V. Ovsepyan, A. A. Buiakina… in Inorganic Materials: Applied Research (2018)

  4. No Access

    Article

    Growth kinetics of particles of nitrides in process of high-temperature volume nitriding of wrought alloy of Ni-Co-Cr-W-Ti system

    The laws of nitride phase formation are studied for the Ni-Co-Cr-W-Ti new class heat-resistant alloy, strengthened by volume nitriding. The data on kinetic features of behavior of the alloy during thermochemic...

    S. V. Ovsepyan, B. S. Bokstein, M. V. Akhmedzyanov… in Inorganic Materials: Applied Research (2015)