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/10.15488/5335

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Sum total of downloads: 191




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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:Fakultät für Maschinenbau

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 78 40.84%
2 image of flag of United States United States 47 24.61%
3 image of flag of China China 18 9.42%
4 image of flag of India India 11 5.76%
5 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 9 4.71%
6 image of flag of Vanuatu Vanuatu 3 1.57%
7 image of flag of Spain Spain 3 1.57%
8 image of flag of Malaysia Malaysia 2 1.05%
9 image of flag of Japan Japan 2 1.05%
10 image of flag of Austria Austria 2 1.05%
    other countries 16 8.38%

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