THERMAL TREATMENT INNOVATION TECHNOLOGY OF BOGIE SIDE FRAME IN FREIGHT CAR ENSURING ITS FATIGUE STRENGTH INCREASE
Authors:
1.
Russian University of Transport
(upravlenie nauchno-issledovatel'skoy raboty, nachal'nik)
Moskva, Moscow, Russian Federation
Moskva, Moscow, Russian Federation
2.
Russian University of Transport (MIIT)
(dep." Technology of Transport Engineering and Repair of Rolling Stock», Professor)
Moscow, Moscow, Russian Federation
Moscow, Moscow, Russian Federation
3.
Russian University of Transport
(Department of Ground Transport and Technological Means, Head of the Department, Associate Professor)
Moscow, Moscow, Russian Federation
Moscow, Moscow, Russian Federation
Type:
Article
Pages:
from 8
to 15
Status:
Published
Received:
10.07.2019
Accepted:
16.08.2019
Published:
16.08.2019
Subject area:
UDK 62 Инженерное дело. Техника в целом. Транспорт
GRNTI 55.01 Общие вопросы машиностроения
GRNTI 55.13 Технология машиностроения
GRNTI 55.35 Металлургическое машиностроение
GRNTI 55.01 Общие вопросы машиностроения
GRNTI 55.13 Технология машиностроения
GRNTI 55.35 Металлургическое машиностроение
Language:
Russian, English
Keywords:
side frame, freight car, thermal treatment, heat process kinetics, structure-phase transformations
Abstract (English):
Basic regulations of the thermal strengthening technology of a bogie side frame in a freight car made of mild steel based on the procedure developed for the parameter definition of thermal treatment on the results of the computer simulation of kinetics of structural and phase transformations in steel are shown. The results of the computer simulation of structure formation in 20 GL steel containing 0.42 and 0.53% of silicon at the realization of different cooling intensity are shown. The computer simulation is carried out on the basis of the developed procedure formed on the basis of the austenite decomposition diagram taking into account different cooling rates. The experimental assessment of a bogie side frame state after realization of the technology developed is carried out.
Basic regulations of the thermal strengthening technology of a bogie side frame in a freight car made of mild steel based on the procedure developed for the parameter definition of thermal treatment on the results of the computer simulation of kinetics of structural and phase transformations in steel are shown. The results of the computer simulation of structure formation in 20 GL steel containing 0.42 and 0.53% of silicon at the realization of different cooling intensity are shown. The computer simulation is carried out on the basis of the developed procedure formed on the basis of the austenite decomposition diagram taking into account different cooling rates. The experimental assessment of a bogie side frame state after realization of the technology developed is carried out.
Keywords:
side frame, freight car, thermal treatment, heat process kinetics, structure-phase transformations
side frame, freight car, thermal treatment, heat process kinetics, structure-phase transformations
1. Kosarev, JI.N., Severinova, T.P., Kornev, N.I., Zabelina, N.F. Analysis of cast parts reliability of freight cars on operation data // Bulletin of ARRIRT. - 1985. - No.4. - pp. 32-37.
2. Popova, L.E., Popov, A.A. Diagrams of Austenite Transformation in Steel and Beta Solutions in Titanium Alloys. - M.: Metallurgy, 1991. - pp. 504.
