Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Vakulenko, Igor" wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-7 z 7
    Tytuł:
    The influence of nonmetallic inclusion on strain hardening carbon steel
    Autorzy:
    Vakulenko, Igor
    Vakulenko, Leonid
    Proydak, Svetlana
    Powiązania:
    https://bibliotekanauki.pl/articles/198604.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    deformation
    steel
    railway wheel
    microhardness
    non-metallic inclusion
    deformacja
    stal
    koło kolejowe
    mikrotwardość
    wtrącenie niemetaliczne
    Opis:
    On a fragment of the rim of a railway wheel removed from service, the volume of the metal with non-metallic inclusions located near the tread surface was investigated. The use of the microhardness measurement technique made it possible to establish the nature of strain hardening of carbon steel near non-metallic inclusions. It showed that with a normal orientation of the plastic flow relative to the inclusion surface, the metal volumes undergo hardening. In proportion to the appearance of a fraction of the tangential component of the deformation near the nonmetallic inclusion, a decrease in the degree of hardening of the metal was observed.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2019, 103; 193-198
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Insights into factors of damage of surface rolling of railway wheels during operation
    Autorzy:
    Aaskerov, Hangardas
    Vakulenko, Igor
    Grischenko, Nikolaji
    Powiązania:
    https://bibliotekanauki.pl/articles/197938.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    carbon steel
    microhardness
    strain hardening
    rolling surface
    railway wheel
    non-metallic particles
    stal węglowa
    mikrotwardość
    umocnienie odkształceniowe
    powierzchnia toczna
    koło pojazdu szynowego
    właściwości niemetaliczne
    Opis:
    The systematization results of microstructure studies of carbon steel has made it possible to explain the mechanism of formation of certain damages to the rolling surface of railway wheels during operation. The evaluation ability of metal to strain hardening was used to explain the nature of the influence compactly located non-deformable dispersed particles on the strength properties steel during cold plastic deformation. In the process of the interaction of a railway wheel with a rail, successively occurring heterogeneities in the distribution of the plastic flow metal are one of the main reasons for the formation of defects on the rolling surface of the wheel.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2019, 105; 27-33
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The calculation of stress intensity factor steel of railway wheels
    Autorzy:
    Vakulenko, Igor
    Proydak, Svetlana
    Askerov, Hangardas
    Powiązania:
    https://bibliotekanauki.pl/articles/2091142.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    stress intensity factor
    impact strength
    elongation
    narrowing
    austenite
    pearlite
    współczynnik intensywności naprężeń
    udarność
    wydłużenie
    zwężenie
    austenit
    perlit
    Opis:
    From an analysis of the dependence complex of carbon steel properties on structural parameters, it was found that for an isostructural state, the influence of austenite grain size on impact strength exceeds the dependence on carbon content. As a result of explaining correlation relationships between individual mechanical characteristics, to evaluate critical stress intensity factor, a relationship is proposed based on the use of impact strength. The proportionality coefficient in proposed dependence is determined by ratio of elongation to narrowing at tensile test.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 109; 187--193
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence hot plastic deformation on the structure and properties of carbon steel of the railway wheel
    Autorzy:
    Vakulenko, Igor
    Plitchenko, Sergey
    Bolotova, Dariy
    Asgarov, Khangardash
    Powiązania:
    https://bibliotekanauki.pl/articles/27312350.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    railway wheel
    carbon steel
    mechanical properties
    hot deformation
    boundary
    austenite
    koło kolejowe
    stal węglowa
    właściwości mechaniczne
    odkształcenie na gorąco
    granica
    austenit
    Opis:
    The study is devoted to the explanation of the influence of hot plastic deformation on the properties of railway wheels. The shape of individual elements of the wheel provides for a different degree of hot compression, which determines the mechanism for the development of the recrystallization at austenite. With a decrease in the degree of the hot deformation, a certain proportion of grains with a low energy of linear stretching are formed in austenite. As a result, of the low mobility of such boundaries, the likelihood of preservation of part of the substructural state of the austenite increases, which should affect the formation of a colony of perlite during the cooling of the carbon steel. Against background preservation and a dependence of strength properties on the dispersion of the pearlite colony, the appearance in austenite of grain boundaries with a low energy of linear tension leads to a qualitative change in the plastic properties of railway wheel steel. The increase in plasticity of carbon steel with an increase in dispersion of the pearlite colony is due to a decrease in the effect of solid solution hardening and an increase in the role of the ferrite-cementite interface in the development processes of strain hardening carbon steel. The results obtained can be useful for improving the technology of manufacturing all-rolled railway wheels.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2023, 121; 257--266
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transformation of structure during friction stir welding
    Autorzy:
    Vakulenko, Igor Alex
    Plitchenko, Sergey
    Kurt, Bulent
    Proydak, Svetlana
    Askerov, Hangardas
    Powiązania:
    https://bibliotekanauki.pl/articles/2134872.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    chemical compound
    grain size
    hardness
    recrystallisation
    temperature
    związek chemiczny
    wielkość ziarna
    twardość
    rekrystalizacja
    temperatura
    Opis:
    In comparison with low carbon steels, there is increased interest in the use of aluminium-based alloys as materials for the manufacture of welded structures rolling stock of railway transport. During friction stir welding aluminium-based alloy, against the background of the analysis structural transformations, issues of development hardening processes are considered. Under conditions of existence, a temperature gradient at zone of weld formation, shown degree approximation alloy to the conditions of superplastic flow and influence from presence particles of the second phase on grain size of matrix is estimated. Evaluation of the separate influence grain size of matrix and state of solid solution at total hardness of the weld showed dependence of their contributions on temperature of hot plastic deformation. As the temperature of plastic deformation of alloy at area of the weld increases, contribution to the total hardness from grain size increase and on state of the solid solution decreases.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 111; 181--191
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence structure on the plasticity of carbon steel of the railway wheel rim in operation
    Autorzy:
    Vakulenko, Igor Alex
    Vakulenko, Leonid
    Bolotova, Dariy
    Kurt, Bulent
    Asgarov, Hangardash
    Çölova, Ömer
    Powiązania:
    https://bibliotekanauki.pl/articles/2176495.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    carbon steel
    strain
    stal węglowa
    naprężenie
    Opis:
    When simulating the operating conditions of the rim of a railway wheel, an analysis of change in the structural state from the possible degree of plastic deformation and the heating temperature of steel near the rolling surface was carried out. The development processes of spheroidization and coalescence of cementite during heating of the cold-worked steel change its ability to strain hardening. Substructure changes during heating to temperatures of 500-550°C deformed steel are accompanied by a simultaneous decrease in its ability to strain hardening and the level of plasticity. When heated above 500-550°C, the development of ferrite recrystallization processes provides a gradual transition of the metal from substructure hardening to hardening from grain boundaries with large angles of disorientation. It is shown that regardless of the nature of the main structural element, the ability of steel to strain hardening and the level of plasticity after heating are related by a proportional relationship.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 115; 183--192
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of plastic deformation carbon steel on the process of burning electric arc
    Autorzy:
    Vakulenko, Igor Alex
    Plitchenko, Sergey
    Kurt, Bulent
    Askerov, Hangardas
    Proydak, Svetlana
    Erdogdu, Ahmet Emrah
    Powiązania:
    https://bibliotekanauki.pl/articles/2091226.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    substructure
    density dislocation
    electric current
    plastic deformation
    cementite
    ferrite
    podbudowa
    dyslokacja gęstości
    prąd elektryczny
    deformacja plastyczna
    cementyt
    ferryt
    Opis:
    During a study of the combustion process of a direct polarity electric arc, a directly proportional dependence of the electric current value on the degree of cold plastic deformation of carbon steel used as an electrode was found. To calculate the value of the electric current during arc burning, in the indicated ratio, it was proposed to replace the surface tension force of the liquid metal with the surface tension of ferrite of plastically deformed carbon steel. Calculation of the ferrite’s surface tension value on the deformation degree of the steel under study through the size of the coherent scattering regions was used to explain the observed dependence of the electric current during arc burning. From the analysis of the considered correlation ratios, it was found that with an increase in the cold deformation degree, the refinement of the coherent scattering regions results in the ferrite’s surface tension increase and consequently, to an increase in the electric current during arc burning. Comparative analysis of the obtained results of calculating the value of electric current during arc burning through the surface tension of ferrite of cold-deformed carbon steel showed a fairly good coincidence with experimental data. The differences did not exceed 9%.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 112; 211--218
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies