Abstract
Сomparative qualitative and quantitative analysis of microstructure of the alloy ЭИ893 on the example of working blades with different experiences. Characteristic differences of strengthening phases are identified, that allows to judge about the degradation of the material structure during operation and the possibility of extending the resource products with timely repairs.
References (8)
1. L. B. Getsov. Materials and durability of gas turbines.Rybinsk: Gazoturbinnye tehnologii. (2010) 601p. (inRussian).
2. N.V. Dashunin. Forecasting and extension of servicelife, increasing the reliability of metal in managing thelife of stationary gas turbine blading on gas pipelines.Extended abstract of a candidate’s thesis. SPb. (2006).21p. (in Russian).
3. Ch. Sims, W. Hagel. Superalloys. (1976). 567p. (inRussian).
4. S.A. Ivanov. Fatigue resistance of the rotor blades ofstationary gas turbines in the scope of life extension.Extended abstract of a candidate’s thesis. SPb. (2007).21p. (in Russian).
5. O.Yu. Ginergart. Influence of grain size on propertiesof heat-resistant alloys. Conf.: The dynamics of systems, mechanisms and machines. Omsk. (2009) 338-342p. (inRussian).
6. Y.Р. Tarasenko, I.N. Tsareva, O.B. Berdnik. Automaticwelding. 9, 18 (2011). (in Russian).
7. O.B. Berdnik, I.N. Tsarev, E.N. Razov. Vestnik of SamaraState Aerospace University. 3, 240 (2011). (in Russian).
8. SO153-34.17.448-2003 Instructions for extendingthe lifetime of metal in the core elements of turbinesand compressors in power-generating gas turbines. (inRussian).