Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.18796/0041-5790-2018-7-9-12

Ключевые слова: Austenite, Chemical composition, Foundry production, Heat treatment, Mechanical properties, Mining equipment, Steel, Structure, Wear resistance

Аннотация: Life of the mining equipment assemblies, which are subject to intensive shock-abrasive wear during operation, contributes to improvement of reliability, fatigue strength and its service life longevity. In order to make similar products, the steels of different grades can be used, but at present the 110g13l-type high manganese austenitic steels are recognized as the most promising, as shown by literature analysis in Russia and abroad. the purpose of this work is to study the effect of the 110g13l steel structure on the performance characteristics of large-size products for mining equipment. analysis of such products proves that the most preferred is the cast steel structure, which represent the grains of a solid solution of austenite with boundary excess carbides. the final structure of the cast steel is formed during the heat treatment - quenching. the austenitic steel microstructure obtained as a result of treatment has the view of grains of a solid solution of austenite in the presence of martensite needles. the martensite areas formed on the product surface improves the hardness of the material and its wear resistance. Figures: Fig. 1. Fractogram (a) and microstructure (b - sample middle, b - sample surface layer × 100) of the cast steel 110G13L Fig. 2. Fractogram (a) and microstructure (b) of the cast steel 110G13L×100. © D. Yu. Kritskij, S.I. Tyurin, A.A. Kovaleva, T.R Gil'Manshina, 2018.

Журнал: Ugol'

Выпуск журнала: Is. 7

Номера страниц: 9-12

• Kritskij D.Yu. (SuEK-Krasnoyarsk JSC, Krasnoyarsk, Russian Federation)
• Tyurin S.I. (Borodinskiy rMZ LLC, Borodino, Russian Federation)
• Kovaleva A.A. (Siberian federal university, Krasnoyarsk, Russian Federation)
• Gil'Manshina T.R. (Siberian federal university, Krasnoyarsk, Russian Federation)

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