Features of fatigue failure of magnesium based alloy samples

Terekhin A.L., Leonov A.A., Trofimov N.V., Grinevich A.V.
UDC
669.721.5:620.1
DOI
10.18577/2307-6046-2023-0-12-38-52
Article PDF (Russian) (1.24 MB)
How to cite
Terekhin A.L., Leonov A.A., Trofimov N.V., Grinevich A.V. Features of fatigue failure of magnesium based alloy samples // Proceedings of VIAM. 2023. No. 12. DOI: 10.18577/2307-6046-2023-0-12-38-52. URL: https://test.viam.ru/en/journal/2023/12/4
Keywords
magnesium alloy, cyclic durability, cycle asymmetry, stress concentration factor, defects, fractography
Abstract

Data on the cyclic durability of magnesium alloy samples of the Mg–REM–Zr system are presented. The fatigue characteristics of corset samples and notched samples were assessed at loading cycle asymmetry coefficients R = 0,1 and R = –1. For corset samples, the factors determining cyclic durability are the size of the inclusions; for samples with a notch, the location of the defect relative to the plane of the notch. Fractograms of specimen fractures are presented. The possibility of increasing the fatigue resistance of an alloy of the Mg–REM–Zr system by improving the quality of casting has been established.

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