Evaluation of the Endurance Limit of Cooled Blades of Gas-Turbine Engines Made of Heat-Resistant Nickel Alloy

The characteristics of fatigue failure of the working blades of the first stage of the high-pressure turbine of the power gas-turbine engine were determined. Experimental studies were carried out on blades obtained according to the improved technology from the CM88Y alloy, which is used in the seria...

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Veröffentlicht in:	Materials science (New York, N.Y.) N.Y.), 2023-11, Vol.59 (3), p.340-346
Hauptverfasser:	Kvasnytska, Yu. H., Ivaskevych, L. M., Balitskii, A. I., Mialnitsa, H. P., Kvasnytska, K. H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Blades Characterization and Evaluation of Materials Chemistry and Materials Science Fatigue Fatigue failure Fatigue testing machines Gas turbine engines Gas-turbines Heat resistant alloys Materials Materials Science Metal fatigue Natural gas Nickel alloys Service life Solid Mechanics Specialty metals industry Structural Materials
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Beschreibung
Zusammenfassung:	The characteristics of fatigue failure of the working blades of the first stage of the high-pressure turbine of the power gas-turbine engine were determined. Experimental studies were carried out on blades obtained according to the improved technology from the CM88Y alloy, which is used in the serial production of gas-turbine units. The blades withstood the test base of 1×10 7 cycles at a stress of 200–240 MPa. The established endurance limit corresponded to the given service life of blades of this type.
ISSN:	1068-820X 1573-885X
DOI:	10.1007/s11003-024-00783-w