Fatigue life of a heat-resistant titanium alloy at various loading frequencies

Khodinev I.A., Baranova E.V.
UDC
620.178.3:669.295
DOI
10.18577/2307-6046-2024-0-9-71-82
Article PDF (Russian) (911.36 KB)
How to cite
Khodinev I.A., Baranova E.V. Fatigue life of a heat-resistant titanium alloy at various loading frequencies // Proceedings of VIAM. 2024. No. 9. DOI: 10.18577/2307-6046-2024-0-9-71-82. URL: https://test.viam.ru/en/journal/2024/9/7
Keywords
low-cycle fatigue, total deformation amplitude, loading frequency, titanium superalloy, high-cycle fatigue, softening curves
Abstract

The influence of loading frequency on the fatigue life characteristics of a heat-resistant titanium alloy has been studied. Low cycle fatigue (LCF) tests were performed under «severe» loading conditions at temperatures of 20 and 400 °C. High cycle fatigue tests (HCF) were performed under «mild» loading conditions at room temperature. It has been established that the effect of loading frequency on the LCF is the most significant at elevated temperatures. The main difference at a fixed level of loading of the HCF is observed in the interval from 107 cycles. With an increase in the frequency of loading, the durability increases.

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