Investigation of the causes of loss of elastic properties of a 30H13 steel membrane

Morozova L.V.
UDC
669.017
DOI
10.18577/2307-6046-2023-0-7-15-22
Article PDF (Russian) (988.4 KB)
How to cite
Morozova L.V. Investigation of the causes of loss of elastic properties of a 30H13 steel membrane // Proceedings of VIAM. 2023. No. 7. DOI: 10.18577/2307-6046-2023-0-7-15-22. URL: https://test.viam.ru/en/journal/2023/7/2
Keywords
fractography, crack, steel, corrosion, membrane, damage
Abstract

A comprehensive study of a membrane made of corrosion-resistant heat-resistant steel 30H13 was carried out in order to identify the causes of loss of elastic properties. The structure was evaluated, the chemical composition, the structure of the surface and the fracture of the part were studied using optical and electron microscopy, chemical analysis and non-destructive testing. It was found that during the production process, the membrane was subjected to high-temperature heating, causing grain growth (normalization), as well as prolonged electropolishing, leading to the identification of grain boundaries and the development of corrosion processes.

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