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—The low-cycle fatigue (LCF) of the single crystals made of a γ'-Ni3Al-based VKNA-25 γ' + γ nickel superalloy is studied at 104 cycles and a temperature of 20, 750, and 900°C. A temperature anomaly in the LCF fatigue limit of the VKNA alloy, namely, its increase with temperature in the range from 20 to 750°C, is detected. This anomaly is related to a change from octahedral to cubic slip at the temperature...
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