Advanced high pressure turbine blade repair technologies

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Alfred, I.; Nicolaus, M.; Hermsdorf, J.; Kaierle, S.; Möhwald, K. et al.: Advanced high pressure turbine blade repair technologies. In: Procedia CIRP 74 (2018), S. 214-217. DOI: https://doi.org/10.1016/j.procir.2018.08.097

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/4578

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Sum total of downloads: 270




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Abstract: 
Components in aircraft engines and gas turbines are exposed to extreme conditions in order to increase performance and efficiency of the overall engine, hence there is an increasing need for cost-effective and time-efficient repair strategies. Presented here are two novel approaches to the repair of Nickel-based components. The hybrid brazing process involves the application of a repair coating, a nickel-based filler material, a NiCoCrAlY and an aluminium layer, by thermal spraying followed by a heat treatment and combined brazing-aluminizing process. This significantly shortens the conventional repair brazing process and yields superior results. Single-crystal additive repair by laser cladding is applied for the repair of small or large defects in single-crystal turbine blades by enabling monocrystalline solidification of the cladded material by use of a temperature gradient, thereby allowing for the regeneration of these expensive components. The novel approach that combines layer-wise addition of material and laser melting enables the formation of highly monocrystalline structures.
License of this version: CC BY-NC-ND 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:An-Institute

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 112 41.48%
2 image of flag of United States United States 54 20.00%
3 image of flag of China China 31 11.48%
4 image of flag of Ukraine Ukraine 19 7.04%
5 image of flag of France France 8 2.96%
6 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 7 2.59%
7 image of flag of India India 6 2.22%
8 image of flag of No geo information available No geo information available 3 1.11%
9 image of flag of Russian Federation Russian Federation 3 1.11%
10 image of flag of Hong Kong Hong Kong 3 1.11%
    other countries 24 8.89%

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