Перегляд за Автор "Bilyi, O. I."

Зараз показуємо 1 - 3 з 3
  • Ескіз
    ДокументВідкритий доступ
    Effect of Molybdenum Additions on the Microstructure and Properties of WC-W2C Alloys
    (Springer Nature, 2014-07) Trosnikova, I. Y.; Loboda, P. I.; Bilyi, O. I.
    The paper examines how additions of 5, 10, and 20 wt.% molybdenum influence the structure, stress–strain state, phase composition, and size of phase components in WC–W2C alloys. It is found that 5 wt.% molybdenum leads to 30% increase in the microhardness and twofold to threefold increase in the wear resistance of cast tungsten carbide compared to the alloy without additions. Higher molybdenum content of the WC–W2C alloys changes the phase composition and increases compressive stresses in the W2C matrix phase and tensile stresses in WC, (Mo, W)2C, and Mo2C inclusions.
  • Ескіз
    ДокументВідкритий доступ
    Effect of the cooling rate during melt solidification on the structure and properties of WC-W2C
    (Springer Nature, 2014) Trosnikova, I. Yu.; Loboda, P. I.; Karasevska, O. P.; Bilyi, O. I.
    By optical and scanning electron microscopy and quantitative X-ray diffraction and X-ray analysis revealed that the increase in the rate of cooling during crystallization from the melt leads to a reduction in the size of the phase components of the alloy of 20 wt.% WC-80 wt.% W2C, increased compressive stress in the matrix phase W2C and stretching inclusions in the WC, which leads to an increase in the hardness of 1.5 times and 2-4 times the strength of relit, that is used on an industrial scale for the strengthening of machine parts and mechanisms operating in abrasive wear and high contact loads.
  • Ескіз
    ДокументВідкритий доступ
    Вплив кінетичних параметрів процесу кристалізації на структуру та властивості евтектичного сплаву системи LaB6-TiB2
    (2016-05) Лобода, П. І.; Соловйова, Т. О.; Богомол, Ю. І.; Ремізов, Д. О.; Білий, О. І.; Loboda, P. I.; Soloviova, T. O.; Bogomol, Y. I.; Remizov, D. O.; Bilyi, O. I.; ВТМ та ПМ; ІФФ; НТУУ «КПІ»