Conclusions
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1.
We determined the frequency dependence of the endurance limits of pearlitic steel 1Kh2M and austenitic steel Khl8N9 in tests at room and elevated temperatures within the frequency range 3–10,000 Hz: there is a slight change in the endurance limits within 3–500 Hz and a marked increase (∼40%) with an increase in loading frequency to 10 kHz.
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2.
The temperature dependences of the endurance of steels 1Kh2M (within the range 20–470 °C) and Kh18N9 (within 20–600 °C) at loading frequencies of 3–10,000 Hz are similar at different frequencies. The frequency dependence of the endurance limits of the steels becomes weaker within the 3–500 Hz range as temperature is increased.
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3.
In tests in a water spray, the frequency dependence of the endurance of the investigated steels is determined by time-dependent corrosion processes. Representation of the function σa-f on a limited time base showed that loading frequency has only a slight effect on the endurance of these steels.
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Translated from Problemy Prochnosti, No. 4, pp. 35–40, April, 1980.
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Kuz'menko, V.A., Ishchenko, I.I., Troyan, I.A. et al. Effect of loading frequency, temperature, and cycle asymmetry on the endurance of heat-resistant steels 1Kh2m and Kh18N9. Part 1. Strength Mater 12, 439–444 (1980). https://doi.org/10.1007/BF00769398
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DOI: https://doi.org/10.1007/BF00769398