- 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