Analysis of defects in parts made of structural steel

Morozova L.V., Grigorenko V.B., Terekhin A.M.
UDC
669.018.29
DOI
10.18577/2307-6046-2025-0-10-27-39
Article PDF (Russian) (1.45 MB)
How to cite
Morozova L.V., Grigorenko V.B., Terekhin A.M. Analysis of defects in parts made of structural steel // Proceedings of VIAM. 2025. No. 10. DOI: 10.18577/2307-6046-2025-0-10-27-39. URL: https://test.viam.ru/en/journal/2025/10/3
Keywords
fractography, fractographic analysis, scanning electron microscopy, damage, fatigue fracture, fatigue crack, spring, steel
Abstract

A comprehensive study of structural steel parts was conducted to establish the nature of their destruction and to determine the type of defects detected. Metallographic and fractographic analysis methods were used to study operating structure, opened cracks and the microstructure of steels. It was found that the destruction of a spring made of 30HGSN2A-VD steel was facilitated by the presence of coarse scratches and a decarburized layer on the inner surface. In parts made of 30HGSA steel, defects were detected at the stage of thermal and mechanical treatment.

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