公开(公告)号：US20050035086A1

公开(公告)日：2005-02-17

申请号：US10638581

申请日：2003-08-11

Applicant: Keng Chen ,  Shih-Tung Ngiam

Inventor： Keng Chen ,  Shih-Tung Ngiam

IPC: F01D25/00 ,  C23C4/00 ,  C23C4/02 ,  C23C28/00 ,  C23G1/02 ,  C23G1/14 ,  C23G1/28 ,  C25D5/34 ,  F01D5/28 ,  F02C7/00 ,  C23F1/00

CPC classification number: F01D5/288 ,  C23C4/00 ,  C23C4/02 ,  C23C28/021 ,  C23G1/02 ,  C23G1/14 ,  C23G1/28 ,  C25D5/34 ,  F05D2230/30 ,  F05D2230/80 ,  F05D2230/90 ,  F05D2300/143 ,  F05D2300/611 ,  Y02T50/672

Abstract: A method of upgrading an aluminide coating on a used turbine engine component to a platinum aluminide coating. The method involves cleaning at least one surface of the component to remove hot corrosion products from the surface without damaging the aluminide coating. In one embodiment, the cleaning step involves immersing the component in a heated solution comprising acetic acid while agitating the solution using ultrasonic energy. A layer of platinum is then deposited onto the cleaned surface of the component. A second aluminide coating is then formed on the surface of the component to upgrade the component. The invention also relates to a turbine engine component, e.g., a turbine blade, having a metal-based substrate and a platinum aluminide coating on at least one surface thereof, which coating has been upgraded from an aluminide coating originally on the component using the above method.

Abstract translation: 将二氧化碳涡轮发动机部件上的铝化物涂层升级为铂铝化物涂层的方法。 该方法包括清洁组件的至少一个表面以从表面去除热腐蚀产物而不损坏铝化物涂层。 在一个实施方案中，清洁步骤包括将组分浸入包含乙酸的加热溶液中，同时使用超声波能量搅拌该溶液。 然后将铂层沉积在组件的清洁表面上。 然后在组件的表面上形成第二铝化物涂层以升级组件。 本发明还涉及一种涡轮发动机部件，例如涡轮叶片，其在其至少一个表面上具有基于金属的基底和铝化铂涂层，该涂层已使用上述方法从原始在组件上的铝化物涂层升级 方法。