Research of the Influence of Chemical Composition on the Mechanical Characteristics of Cast Parts for Freight Car Bogies
Abstract
This article presents the main factors influencing the mechanical properties of steel. The influence of the main chemical elements in the composition of steel on mechanical properties is shown and their role in obtaining a high complex of operational characteristics is explained. Laboratory data on chemical composition and mechanical properties of steel were analyzed. The possible effects of chemical elements on the formation of the non-metallic inclusions and microstructure are considered. Steel grade 20GL must possess high strength, plasticity, and impact toughness, which are crucial for cast parts of freight cars. In railway transport, the side frame and overhead beam are considered critical components are cast from 20GL grade steel. Improving the mechanical properties of this steel is the main task