title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð½Ð° ÑÑÑÑÐºÑÑÑÑ Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° Ð¿ÑÑÐ¶Ð¸Ð½Ð½Ð¾Ð¹ ÑÑÐ°Ð»Ð¸ Ð´Ð»Ñ Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð¸Ñ Ð¶ÐµÐ»ÐµÐ·Ð½Ð¾Ð´Ð¾ÑÐ¾Ð¶Ð½ÑÑ ÐºÐ»ÐµÐ¼Ð¼
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: The effect of heat treatment on the structure and properties of spring steel for the manufacture of railway terminals
Creators: name: ÐÐ¾Ð»ÑÐ±ÐµÐ², ÐÐ°ÑÐ²ÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÑÐµÑÑÐ¾ÑÐ½Ð¾-Ð¿ÑÑÐ¶Ð¸Ð½Ð½ÑÐµ ÑÑÐ°Ð»Ð¸
ÑÑÐ°Ð»Ñ 40Ñ2
ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ°Ñ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ°
Ð¶ÐµÐ»ÐµÐ·Ð½Ð¾Ð´Ð¾ÑÐ¾Ð¶Ð½ÑÐµ
ÐºÐ»ÐµÐ¼Ð¼Ñ
Ð¼ÐµÑÐ°Ð»Ð»Ð¾Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð°Ð½Ð°Ð»Ð¸Ð·
spring steels
steel 40S2
heat treatment
railway terminals
metallographic analysis

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description: In the bachelor's work, the analysis of scientific and technical information on existing spring-spring steel grades, as well as modern technologies for their production, is made. A description of these steels is given as applied to the terminals of rail fastening in separate rail fastenings of a railway track. The basic requirements and technical characteristics for rolled products for elastic elements of railway fasteners, their heat treatment and its effect on structure formation and mechanical properties are also given. In the course of the study, metallographic analysis of samples of the studied terminals was carried out using macro- and microscopic equipment, including analysis of the structure and properties of the metal, and measurement of microhardness. The influence of heating and heat treatment on the structure of railway terminals has been studied. The obtained results of metallographic studies made it possible to determine the technological properties of steel 40S2 and to establish the optimal modes of heat treatment, excluding excessive grain growth. Recommendations are given on the heat treatment regime to obtain the required steel properties in accordance with the requirements.