Details
| Original language | English |
|---|---|
| Article number | 205427 |
| Number of pages | 8 |
| Journal | WEAR |
| Volume | 550-551 |
| Early online date | 28 May 2024 |
| Publication status | Published - 15 Jul 2024 |
Abstract
Abradable honeycomb sealing systems are essential for gas turbine efficiency. Experimental data on the rubbing performance of Haynes 214 metal sheets brazed with the nickel-chromium-silicon filler metal BNi-5 is presented. The brazing layer in the double foiled honeycomb sections turned out to have a major impact on rubbing behavior. Damage on the rotor was analyzed with a large chamber scanning electron microscope and energy-dispersive X-ray spectroscopy. The results demonstrate a significant influence of the brazing process on the mechanical properties, especially after exposure to 1000 °C. A hard aluminum nitride phase formed in the brazed metal sheets can cause severe damage to the rotor.
Keywords
- Brazing, Haynes 214, Honeycomb, Nickel-base superalloys
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Materials Science(all)
- Surfaces, Coatings and Films
- Materials Science(all)
- Materials Chemistry
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In: WEAR, Vol. 550-551, 205427, 15.07.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - High temperature and high strain rate properties of brazed honeycomb liner material Haynes 214
AU - Vogler, Jonas
AU - Völkl, Rainer
AU - Song, Jieun
AU - Viebranz, Vincent Fabian
AU - Huber, Jakob
AU - Bauer, Hans Jörg
AU - Werner, Ewald
AU - Glatzel, Uwe
N1 - Publisher Copyright: © 2024 The Authors
PY - 2024/7/15
Y1 - 2024/7/15
N2 - Abradable honeycomb sealing systems are essential for gas turbine efficiency. Experimental data on the rubbing performance of Haynes 214 metal sheets brazed with the nickel-chromium-silicon filler metal BNi-5 is presented. The brazing layer in the double foiled honeycomb sections turned out to have a major impact on rubbing behavior. Damage on the rotor was analyzed with a large chamber scanning electron microscope and energy-dispersive X-ray spectroscopy. The results demonstrate a significant influence of the brazing process on the mechanical properties, especially after exposure to 1000 °C. A hard aluminum nitride phase formed in the brazed metal sheets can cause severe damage to the rotor.
AB - Abradable honeycomb sealing systems are essential for gas turbine efficiency. Experimental data on the rubbing performance of Haynes 214 metal sheets brazed with the nickel-chromium-silicon filler metal BNi-5 is presented. The brazing layer in the double foiled honeycomb sections turned out to have a major impact on rubbing behavior. Damage on the rotor was analyzed with a large chamber scanning electron microscope and energy-dispersive X-ray spectroscopy. The results demonstrate a significant influence of the brazing process on the mechanical properties, especially after exposure to 1000 °C. A hard aluminum nitride phase formed in the brazed metal sheets can cause severe damage to the rotor.
KW - Brazing
KW - Haynes 214
KW - Honeycomb
KW - Nickel-base superalloys
UR - http://www.scopus.com/inward/record.url?scp=85194876077&partnerID=8YFLogxK
U2 - 10.1016/j.wear.2024.205427
DO - 10.1016/j.wear.2024.205427
M3 - Article
AN - SCOPUS:85194876077
VL - 550-551
JO - WEAR
JF - WEAR
SN - 0043-1648
M1 - 205427
ER -