The usage of fractographic analysis to diagnostic the causes of destruction of products from medium-carbon steel

Grigorenko V.B., Morozova L.V.
UDC
669.1.017
DOI
10.18577/2307-6046-2018-0-8-98-111
Article PDF (Russian) (1.92 MB)
How to cite
Grigorenko V.B., Morozova L.V. The usage of fractographic analysis to diagnostic the causes of destruction of products from medium-carbon steel // Proceedings of VIAM. 2018. No. 8. DOI: 10.18577/2307-6046-2018-0-8-98-111. URL: https://test.viam.ru/en/journal/2018/8/10
Keywords
constructional steel, fractography, scanning electronic microscopy, fatigue failure, intercrystalline brittleness.
Abstract

The reasons of destruction of products from medium-carbon steels (steel 60, steel 55 and steel 51HFA) are investigated and established. It was established that the main material of the products (cables and springs) met the requirements of the normative documentation on the composition, structure and content of non-metallic inclusions. The destructions were caused by the action of stresses exceeding the permissible (in the first and third cases). Differences in the structure of the breaks, obtained from the action of complex static load and cyclic loads, both at low tension levels and at elevated ones are shown.

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