Details
| Original language | English |
|---|---|
| Title of host publication | Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil and Gas Applications; Steam Turbine |
| Publisher | American Society of Mechanical Engineers(ASME) |
| ISBN (electronic) | 9780791888018 |
| Publication status | Published - 2024 |
| Event | 69th ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition, GT 2024 - London, United Kingdom (UK) Duration: 24 Jun 2024 → 28 Jun 2024 |
Publication series
| Name | Proceedings of the ASME Turbo Expo |
|---|---|
| Volume | 9 |
Abstract
The continuous improvement of high potential repair technologies is an essential driver for cost-effective and sustainable aviation. To withstand extreme forces and temperaturestheturbinesectionofaircraftenginesismadefrom Nickel-based superalloys. This class of materials routinely develops cracks and geometrical deviations in service which require a brazingrepair, thus making brazing anindispensable key technology. This studyseeks to improvebrazing properties on Nickel-based superalloys for aircraft applications. Facilitatedbymaterialssimulation,anovelalloyingstrategyis outlinedtodesignthebrazealloychemistry.Thedesigncriteria are established on the optimization of major microstructural properties influencing the mechanical properties known for repairbrazedjoints.Theproposeddesigncriteriawereapplied tothedevelopmentoftwonewbrazealloys.Thenewalloydesign approach is validated experimentally by using the developed alloys. Mechanical properties of brazed samples made from Nickel-based superalloys were investigated at a service equivalent temperature of 871°C. Results indicate that the ultimate tensilestrengthat 871°C is 20.5% higher thanthat publishedforlegacybrazealloys.Thisstudyprovidesabasisfor the development of repair technologies applicable to further superalloys.
Keywords
- Maintenance, Materials simulation, Nickel-based superalloys, Repair and Overhaul (MRO), Repair Brazing, Transient liquid phase bonding
ASJC Scopus subject areas
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil and Gas Applications; Steam Turbine. American Society of Mechanical Engineers(ASME), 2024. V009T17A002 (Proceedings of the ASME Turbo Expo; Vol. 9).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Novel Alloying Strategy to Improve Brazing Properties on Nickel Based Superalloys for Aircrafts Turbine Application
AU - Reker, Dirk Wilhelm
AU - Sowa, Roman
AU - Schwalbe, Caspar
AU - Seidel, Frank
AU - Moehwald, Kai
AU - Nicolaus, Martin
AU - Wackenrohr, Steffen
AU - Tillmann, Wolfgang
N1 - Publisher Copyright: Copyright © 2024 by ASME.
PY - 2024
Y1 - 2024
N2 - The continuous improvement of high potential repair technologies is an essential driver for cost-effective and sustainable aviation. To withstand extreme forces and temperaturestheturbinesectionofaircraftenginesismadefrom Nickel-based superalloys. This class of materials routinely develops cracks and geometrical deviations in service which require a brazingrepair, thus making brazing anindispensable key technology. This studyseeks to improvebrazing properties on Nickel-based superalloys for aircraft applications. Facilitatedbymaterialssimulation,anovelalloyingstrategyis outlinedtodesignthebrazealloychemistry.Thedesigncriteria are established on the optimization of major microstructural properties influencing the mechanical properties known for repairbrazedjoints.Theproposeddesigncriteriawereapplied tothedevelopmentoftwonewbrazealloys.Thenewalloydesign approach is validated experimentally by using the developed alloys. Mechanical properties of brazed samples made from Nickel-based superalloys were investigated at a service equivalent temperature of 871°C. Results indicate that the ultimate tensilestrengthat 871°C is 20.5% higher thanthat publishedforlegacybrazealloys.Thisstudyprovidesabasisfor the development of repair technologies applicable to further superalloys.
AB - The continuous improvement of high potential repair technologies is an essential driver for cost-effective and sustainable aviation. To withstand extreme forces and temperaturestheturbinesectionofaircraftenginesismadefrom Nickel-based superalloys. This class of materials routinely develops cracks and geometrical deviations in service which require a brazingrepair, thus making brazing anindispensable key technology. This studyseeks to improvebrazing properties on Nickel-based superalloys for aircraft applications. Facilitatedbymaterialssimulation,anovelalloyingstrategyis outlinedtodesignthebrazealloychemistry.Thedesigncriteria are established on the optimization of major microstructural properties influencing the mechanical properties known for repairbrazedjoints.Theproposeddesigncriteriawereapplied tothedevelopmentoftwonewbrazealloys.Thenewalloydesign approach is validated experimentally by using the developed alloys. Mechanical properties of brazed samples made from Nickel-based superalloys were investigated at a service equivalent temperature of 871°C. Results indicate that the ultimate tensilestrengthat 871°C is 20.5% higher thanthat publishedforlegacybrazealloys.Thisstudyprovidesabasisfor the development of repair technologies applicable to further superalloys.
KW - Maintenance
KW - Materials simulation
KW - Nickel-based superalloys
KW - Repair and Overhaul (MRO)
KW - Repair Brazing
KW - Transient liquid phase bonding
UR - http://www.scopus.com/inward/record.url?scp=85204302071&partnerID=8YFLogxK
U2 - 10.1115/GT2024-121186
DO - 10.1115/GT2024-121186
M3 - Conference contribution
AN - SCOPUS:85204302071
T3 - Proceedings of the ASME Turbo Expo
BT - Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil and Gas Applications; Steam Turbine
PB - American Society of Mechanical Engineers(ASME)
T2 - 69th ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition, GT 2024
Y2 - 24 June 2024 through 28 June 2024
ER -