High temperature and high strain rate properties of brazed honeycomb liner material Haynes 214

被引：0

作者：

Vogler, Jonas ^{[1
]}

Voelkl, Rainer ^{[1
]}

Song, Jieun ^{[2
]}

Viebranz, Vincent Fabian ^{[3
]}

Huber, Jakob ^{[4
]}

Bauer, Hans-Joerg ^{[2
]}

Werner, Ewald ^{[4
]}

Glatzel, Uwe ^{[1
]}

机构：

[1] Univ Bayreuth, Met & Alloys, Bayreuth, Germany

[2] Karlsruhe Inst Technol, Inst Thermal Turbomachinery, Karlsruhe, Germany

[3] Leibniz Univ Hannover, Inst Werkstoffkunde Mat Sci, Hannover, Germany

[4] Tech Univ Munich, Inst Mat Sci, Munich, Germany

来源：

WEAR | 2024年 / 550-551卷

关键词：

Brazing; Haynes; 214; Honeycomb; Nickel -base superalloys; SEAL; WEAR;

D O I：

10.1016/j.wear.2024.205427

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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 energydispersive X-ray spectroscopy. The results demonstrate a significant influence of the brazing process on the mechanical properties, especially after exposure to 1000 degrees C. A hard aluminum nitride phase formed in the brazed metal sheets can cause severe damage to the rotor.

引用

页数：8

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