Details
| Original language | English |
|---|---|
| Title of host publication | International Thermal Spray Conference and Exposition, ITSC 2017 |
| Publisher | ASM International |
| Pages | 462-466 |
| Number of pages | 5 |
| ISBN (electronic) | 9781510858220 |
| Publication status | Published - 2017 |
| Event | International Thermal Spray Conference and Exposition, ITSC 2017 - Dusseldorf, Germany Duration: 7 Jun 2017 → 9 Jun 2017 |
Publication series
| Name | Proceedings of the International Thermal Spray Conference |
|---|---|
| Volume | 1 |
Abstract
Depending on the size and type defects of nickel-based alloy turbine blades two procedures are used mainly: cladding and high temperature brazing. The repair brazing of turbine blades is used to regenerate cracks and surface defects and is the focus of this work. In this contribution a two stage hybrid repair brazing process is presented which allows reducing the current process chain for repair brazing turbine blades. In the first stage of this process the filler metal (NiCrSi) then the hot gas corrosion protective coating (NiCoCrAlY) and finally the aluminium are applied in this order by atmospheric plasma spraying. In the second stage of this hybrid technology the applied coating system undergoes a heat treatment in which brazing and aluminising are combined. The temperature-time regime has an influence on the microstructure of the coating which is investigated in this work.
ASJC Scopus subject areas
- Materials Science(all)
- Materials Chemistry
- Materials Science(all)
- Surfaces, Coatings and Films
- Physics and Astronomy(all)
- Surfaces and Interfaces
Cite this
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International Thermal Spray Conference and Exposition, ITSC 2017. ASM International, 2017. p. 462-466 (Proceedings of the International Thermal Spray Conference; Vol. 1).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research
}
TY - GEN
T1 - Heat treatment of the thermally sprayed coating system NiCrSi/NiCoCrAlY/Al for repair brazing high pressure turbine blades
AU - Nicolaus, M.
AU - Möhwald, K.
AU - Maier, H. J.
PY - 2017
Y1 - 2017
N2 - Depending on the size and type defects of nickel-based alloy turbine blades two procedures are used mainly: cladding and high temperature brazing. The repair brazing of turbine blades is used to regenerate cracks and surface defects and is the focus of this work. In this contribution a two stage hybrid repair brazing process is presented which allows reducing the current process chain for repair brazing turbine blades. In the first stage of this process the filler metal (NiCrSi) then the hot gas corrosion protective coating (NiCoCrAlY) and finally the aluminium are applied in this order by atmospheric plasma spraying. In the second stage of this hybrid technology the applied coating system undergoes a heat treatment in which brazing and aluminising are combined. The temperature-time regime has an influence on the microstructure of the coating which is investigated in this work.
AB - Depending on the size and type defects of nickel-based alloy turbine blades two procedures are used mainly: cladding and high temperature brazing. The repair brazing of turbine blades is used to regenerate cracks and surface defects and is the focus of this work. In this contribution a two stage hybrid repair brazing process is presented which allows reducing the current process chain for repair brazing turbine blades. In the first stage of this process the filler metal (NiCrSi) then the hot gas corrosion protective coating (NiCoCrAlY) and finally the aluminium are applied in this order by atmospheric plasma spraying. In the second stage of this hybrid technology the applied coating system undergoes a heat treatment in which brazing and aluminising are combined. The temperature-time regime has an influence on the microstructure of the coating which is investigated in this work.
UR - http://www.scopus.com/inward/record.url?scp=85047567884&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85047567884
T3 - Proceedings of the International Thermal Spray Conference
SP - 462
EP - 466
BT - International Thermal Spray Conference and Exposition, ITSC 2017
PB - ASM International
T2 - International Thermal Spray Conference and Exposition, ITSC 2017
Y2 - 7 June 2017 through 9 June 2017
ER -