The Paton Welding Journal, 2010, №08



2010 №08 (03)

2010 №08 (05)

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TPWJ, 2010, #8, 21-24 pages
 
DEVELOPMENT OF THE TECHNOLOGY FOR REPAIR MICROPLASMA POWDER CLADDING OF FLANGE PLATFORM FACES OF AIRCRAFT ENGINE HIGH-PRESSURE TURBINE BLADES


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 8, 2010 (August)
Pages                      21-24
 
 
Authors
K.A. YUSHCHENKO¹, V.S. SAVCHENKO¹, A.V. YAROVITSYN¹, A.A. NAKONECHNY¹, G.F. NASTENKO¹, V.E. ZAMKOVOJ², O.S. BELOZERTSEV² and N.V. ANDREJCHENKO^2
1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
²Zaporozhie Machine-Building Design Bureau «Progress» named after Academician A.G. Ivchenko, Zaporozhie, Ukraine
 
 
Abstract
Described is the technology developed by the E.O. Paton Electric Welding Institute for repair microplasma powder cladding of flange platform faces of high-pressure turbine blades made from alloy JS32-VI for engine D18T by using an additive powder with a composition similar to that of the base metal. It was shown that the one-layer deposited metal preserves the preferred inheritance of structure of the base metal. It was established that specimens simulating the repair cladding conditions, when tested to long-time strength at a temperature of 1000 °C, exhibited a strength level of about 50 % of that of the base metal along the fusion line.
 
 
Keywords: microplasma powder cladding, high-pressure turbine blades, heat-resistant nickel alloy, flange platform faces, inheritance of structure, long-time strength
 
 
Received:                ??.??.??
Published:               28.08.10
 
 
References
1. Pejchev, G.I., Zamkovoj, V.E., Akhrameev, N.V. (2000) ZMBDB «Progress»: new materials and advanced technologies in aircraft engine construction. Tekhnol. Sistemy, 2, 5-15.
2. News of 14 November 2006. www.avia.ru.
3. Peremilovsky, I.A., Petrik, I.A. (2002) Strengthening of flange platforms of turbine blades with heat-resistant alloys. Gazoturbin. Tekhnologii, 3, 90-92.
4. Pejchev, G.I., Shurin, A.K., Zamkovoj, V.E. et al. (2000) Development and application of high-temperature wear-resistant alloy for strengthening of flange platforms of gas-turbine engine blades. Tekhnol. Sistemy, 3, 40-42.
5. Melekhov, R.K., Pokhmursky, V.I. (2003) Structural materials for power generation equipment. Properties, degradation. Kyiv: Naukova Dumka.
6. Yushchenko, K.A., Savchenko, V.S., Chervyakov, N.O. et al. (2004) Character of formation of hot cracks in welding cast heat-resistant nickel alloys. The Paton Welding J., 8, 34-38.

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