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#)

新型粘合涂层的开发及其热喷涂应用提高高压汽轮机外气密封涂层的使用寿命（T17）

• 批准号: 504154707
• 金额: --
• 依托单位: Institut für Werkstoffkunde (IW)
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres (Transfer Project)
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/504154707?language=en
• 关键词: Increasing; Service; Life; Outer; Air

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.

该转移项目的目的是延长高压涡轮机段外部空气密封涂层（OAS）的使用寿命。OAS由镍基粘结层和陶瓷顶层组成，该粘结层通过昂贵的低真空等离子喷涂（LVPS）工艺涂覆。根据CRC 871中子项目B1的发现，将开发新的粘结层，从而开发新的修补工艺。LVPS工艺被更便宜的高速火焰喷涂工艺所取代。