INVESTIGATION OF IMPACT TOUGHNESS OF CAST STEEL FOR LOAD-BEARING PARTS OF FREIGHT CARS
Rubrics: PROBLEMATIC OF TRANSPORT SYSTEM
Authors:
1.
LLC “RM RAIL Management Company”
(Head of the Department)
Russian Federation
Russian Federation
2.
LLC “UIC — Wagons”
(CEO)
Russian Federation
Russian Federation
3.
Emperor Alexander I St. Petersburg State Transport University
(Department of Wagons and Wagon Industries)
Russian Federation
Russian Federation
4.
Corporation “NVC Vagoni”
(Metal Productions Trial Department, head)
Russian Federation
Russian Federation
5.
Emperor Alexander I Petersburg State Transport University
(Department of “Wagons and Wagon Economy”, Engineer)
Russian Federation
Russian Federation
Type:
Article
Pages:
from 274
to 281
Status:
Published
Received:
28.03.2024
Accepted:
29.03.2024
Published:
29.03.2024
Subject area:
UDK 620.191.3 Макроскопические неоднородности
UDK 629.462 Специальные вагоны
UDK 629.462 Специальные вагоны
Language:
Russian
Keywords:
impact toughness of cast steel, cast load-bearing parts, freight car bogie
Abstract (English):
Objective: to conduct comprehensive experimental studies of the impact toughness of 20GL cast steel, which is used for the manufacture of load-bearing parts of freight cars. To obtain a serial diagram of the dependence of the impact toughness value on the test temperature. Methods: the method of mechanical testing of cast steel specimens under impact loading was used, which allows obtaining quantitative estimates of the material’s ability to resist impact fracture at different temperatures (impact toughness tests). Micrographic analysis of the fracture surface was used to study the surface of impact fracture. Results: based on the results of tests of specimens made of 20GL cast steel, experimental dependences P = f (τ); E = f (τ) and a serial diagram (KCV — T) were constructed, which allow evaluating the performance of cast steel in the manufacture of load-bearing parts of cars for various climatic conditions of operation. Practical significance: the results obtained allow us to carry out work to improve the technological and service properties of cast load-bearing parts of freight cars.
Objective: to conduct comprehensive experimental studies of the impact toughness of 20GL cast steel, which is used for the manufacture of load-bearing parts of freight cars. To obtain a serial diagram of the dependence of the impact toughness value on the test temperature. Methods: the method of mechanical testing of cast steel specimens under impact loading was used, which allows obtaining quantitative estimates of the material’s ability to resist impact fracture at different temperatures (impact toughness tests). Micrographic analysis of the fracture surface was used to study the surface of impact fracture. Results: based on the results of tests of specimens made of 20GL cast steel, experimental dependences P = f (τ); E = f (τ) and a serial diagram (KCV — T) were constructed, which allow evaluating the performance of cast steel in the manufacture of load-bearing parts of cars for various climatic conditions of operation. Practical significance: the results obtained allow us to carry out work to improve the technological and service properties of cast load-bearing parts of freight cars.
Keywords:
impact toughness of cast steel, cast load-bearing parts, freight car bogie
impact toughness of cast steel, cast load-bearing parts, freight car bogie
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