Increasing the Service Life of the Outer Air Seal Coating in the High-Pressure Turbine by Developing a New Adhesion Bond Coat and its Application by Thermal Spraying (T17#)

该转移项目的目的是提高高压汽轮机部件外密封涂层(OAS)的使用寿命。OAS由昂贵的低真空等离子喷涂(LVPS)工艺所用的镍基粘结涂层和陶瓷顶层组成。根据CRC871中子项目B1的调查结果，将开发一种新的粘结涂层，从而开发一种新的修复工艺。LVPS工艺被更便宜的高速火焰喷涂工艺所取代。

The aim of this transfer project is to increase the service life of the Outer Air Seal Coating (OAS) of the high-pressure turbine segments. The OAS consists of a nickel-based bond coat, which is applied by the expensive Low Vacuum Plasma Spraying (LVPS) process, and a ceramic top layer. Based on the findings from subproject B1 in the CRC 871, a new bond coat and thus a new repair process will be developed. The LVPS process is replaced by the cheaper high-velocity flame spraying process.