Analysis of the causes of destruction of gearbox parts by methods of optical and scanning microscopy

Morozova L.V., Grigorenko V.B., Terekhin A.M.
UDC
620.187
DOI
10.18577/2307-6046-2024-0-12-31-43
Article PDF (Russian) (2.3 MB)
How to cite
Morozova L.V., Grigorenko V.B., Terekhin A.M. Analysis of the causes of destruction of gearbox parts by methods of optical and scanning microscopy // Proceedings of VIAM. 2024. No. 12. DOI: 10.18577/2307-6046-2024-0-12-31-43. URL: https://test.viam.ru/en/journal/2024/12/3
Keywords
scanning electron microscopy, fractographic analysis, optical microscopy, microstructure, alloy steel, brittle fracture, fatigue fracture, bearing, gear
Abstract

The causes of failure of gas turbine engine parts have been identified. The structure and features of destruction have been studied using optical metallography, high-resolution fractography and electron probe analysis. It has been shown that the materials of the parts comply with the requirements of regulatory documentation in terms of structure, hardness and chemical composition. The most probable causes of rolling bearing failure are faults in the oil supply system. The destruction of the gear developed according to the fatigue mechanism from scratches located in the gullet.

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