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  1. No Access

    Article

    Additive Technology in the Aerospace Industry

    Aerospace components may be produced from titanium powder by selective laser sintering. The satisfactory operation of such components under standard loads has been confirmed. In this technology, the manufactur...

    I. V. Yaronov, A. G. Kovalev, Yu. L. Ryabikov in Russian Engineering Research (2018)

  2. No Access

    Article

    A case of industrial safety appraisal for extension of service life of GTK-10-4 gas turbines used at gas transmission stations

    It is shown that the extended life and enhanced operational reliability of parts and subassemblies of the most popular GTK-10-4 gas transmission plants are determined by the enhanced efficiency of the control ...

    A. I. Rybnikov, A. G. Kovalev, I. I. Kryukov, S. A. Leont’ev… in Thermal Engineering (2017)

  3. No Access

    Article

    Emission of CO2 from the surface of oligotrophic bogs with due account for their microrelief in the southern taiga of European Russia

    The results of studying the carbon dioxide fluxes from the soil’s surface during three years taking into account the microrelief are summarized. More precise estimates were obtained for the annual CO2 emission fr...

    T. V. Glukhova, S. E. Vompersky, A. G. Kovalev in Eurasian Soil Science (2013)

  4. No Access

    Article

    Inspection of rotor disks of HPT and LPT of TK-10-4 gas-compressor units by the ultrasonic flaw detection method

    The special features of diagnosing disks of gas turbines of gas-compressor units by the ultrasonic flaw detection method are considered. The efficiency of detecting crack-type defects in disks of HPT and LPT r...

    N. G. Shmelev, M. I. Gorbatsevich… in Russian Journal of Nondestructive Testing (2012)

  5. No Access

    Article

    New steel finishing technologies in the electric-furnace shop of the Kramatorck Energomashspetsstal’ engineering works

    The measures on reconstructing the electric-furnace shop of the Energomashspetsstal’ engineering works that were taken to increase the capacity of the equipment and to improve the steel quality are described.

    V. M. Safonov, A. N. Smirnov, A. Yu. Tsuprun, A. G. Kovalev… in Russian Metallurgy (Metally) (2009)

  6. No Access

    Article

    Measurement of thermal conductivity of electric insulating materials used in high-voltage electric machines

    The measurement results of the thermal-conductivity coefficient of modern materials used in high-voltage electric machines are given. The measurements were carried out using the dynamic calorimetric technique ...

    A. A. Bezborodov, A. G. Kovalev, Yu. A. Polonskii in Russian Electrical Engineering (2009)

  7. No Access

    Article

    Normalizing of castings in a water-air cooling chamber

    The results of modernizing a water-air cooling chamber for normalizing castings of complex shape and steel of different classes are considered. It is economically desirable to modernize existing units with the...

    N. A. Nemzer, G. G. Nemzer, A. G. Kovalev in Metal Science and Heat Treatment (1994)

  8. No Access

    Article

    Effect of complex microalloying on the structure and properties of cast high-tensile steel

    1. Microalloying of the 14Kh2GMR steel with REM master alloy disperses the nonmetallic inclusions and changes th...

    Yu. Ya. Skok, E. D. Taranov, Z. L. Kozlova… in Metal Science and Heat Treatment (1989)

  9. No Access

    Article

    Methods of increasing the wear resistance of steel 110G13L

    A. G. Kovalev, A. A. Mironov, S. I. Gladkii… in Metal Science and Heat Treatment (1973)

  10. No Access

    Article

    Production of chrome-nickel steels in induction furnaces with an acid lining

    I. P. Volchok, A. G. Kovalev in Metallurgist (1965)