Repairability analysis of the energy gas turbine rotor blade second stage shroud by high-temperature brazing

Main Article Content

Piotr Klimczuk

Abstract

The article considers the repair of the energy gas turbine rotor blade second stage shroud. The paper presents an analysis of the possibility of the repair consisting of the replacement of both labyrinth and honeycomb seals by the high-temperature brazing process. All the steps of the repair process were discussed and the results of microscopic metallographic evaluation using a light microscope and a scanning electron microscope were presented. Several advantages related to the use of this technology were indicated.

Downloads

Download data is not yet available.

Article Details

How to Cite
[1]
P. Klimczuk, “Repairability analysis of the energy gas turbine rotor blade second stage shroud by high-temperature brazing”, Weld. Tech. Rev., vol. 93, no. 2, pp. 23-31, May 2021.
Section
Original Articles

References

Wright I.G., Gibbons T.B., Recent developments in gas turbine materials and technology and their implications for syngas firing. International Journal of Hydrogen Energy, 2007, Vol. 32(16), 3610-3621. https://doi.org/10.1016/j.ijhydene.2006.08.049

https://www.powermag.com/ge-unveils-new-h-class-gas-turbine-and-already-has-a-first-order/

Sims C.T., Stoloff N.S., Hagel W.C.: Superalloys II, Wiley&Sons, New York, 1987.

Kurz R., Brun K., Degradation in Gas Turbine Systems. Journal of Engineering for Gas Turbines and Power, 2000,
Vol. 123(1). https://doi.org/10.1115/2000-GT-0345

Pallos K. J., Gas Turbine Repair Technology [GER-3957B online], GE Power Systems, Atlanta, 2004

Rolls-Royc plc, The Jet Engine, The Technical Publications Department Rolls-Royce plc, Derby, 1986

Ginter T., Bouvay T., Uprate Options for the MS7001 Heavy Duty Gas Turbine [GER-3808C online], GE Energy,
Atlanta, 2012

https://www.ge.com/content/dam/gepower-pgdp/global/en_US/documents/service/2018-ps-catalog.pdf

Sporer D., Fortuna D., Selecting Materials for Brazing a Honeycomb in Turbine Engines. Welding Journal, 2014,
Vol. 93(2), 44-48.

Munz O., Pychynski T., Schwitzke C., Bauer H.-J, Continued Experimental Study on the Friction Contact
between a Labyrinth Seal Fin and a Honeycomb Stator: Slanted Position, Aerospace, 2018, Vol. 5(3), 82.
https://doi.org/10.3390/aerospace5030082

Babul T., Kowalski S., Jakubowski J., Senkara J., Kopeć J., Turowska L., Lutowanie próżniowe uszczelnień ulowych w aparatach kierujących wykonanych ze stopów Hastelloy i Inconel z zastosowaniem lutu NiCrSiB, Przegląd Spawalnictwa, 2007, Vol. 79(9), 124-129.

https://www.ge.com/content/dam/gepower-gdp/global/en_US/documents/technical/ger/ger-4217b-uprate- options-ms6001-heavy-duty-gas-turbine.pdf

Chandler H., Heat Treater's Guide: Practices and Procedures for Irons and Steels, ASM International, USA, 1995. Przybyła B., Zapałowicz Z., Review of methods for sealing aviation turbine rotors. Publishing Hous of Rzeszów Univeristy of Technology, Vol. 291, Mechanika 87, 235-243, 2015.