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    • 9. 发明申请
    • Method for Coating a Blade and Blade of a Gas Turbine
    • 燃气轮机叶片涂层方法
    • US20100266409A1
    • 2010-10-21
    • US12086511
    • 2006-12-12
    • Sharad ChandraNorbert Czech
    • Sharad ChandraNorbert Czech
    • F01D5/18C23C16/06C23C4/06C23C28/02
    • C23C10/14C23C4/073C23C4/18C23C10/08C23C10/60C23C14/025C23C14/028C23C14/083C23C14/30C23C28/3215C23C28/322C23C28/325C23C28/3455C23C30/00F01D5/187F01D5/288F05D2230/312F05D2300/132F05D2300/21
    • A method is provided for coating a hollow, internally cooled blade (1) of a gas turbine, in which method an outer coating (5) comprising an MCrAlY-based bonding layer (6) and a ceramic thermal barrier layer (9) of zirconium oxide is applied to the base material (3) of the blade (1) on the outer side of the blade (1) and an inner coating (4) comprising a Cr diffusion layer (7) is applied to the base material (3) of the blade (1) on the inner side of the blade (1). The MCrAlY-based bonding layer (6) is thereby applied to the finished blade (1). At the same time, along with the inner coating (4), the Cr diffusion layer (7) is also applied to the MCrAlY-based bonding layer (6) of the outer coating (5) by chemical vapour deposition. Subsequently, an Al diffusion layer (8) and an outer brittle Al build-up layer are applied by chemical vapour deposition to the bonding layer (6) coated with the Cr diffusion layer (7). After that, the outer brittle Al build-up layer is removed by an abrasive treatment and the ceramic thermal barrier layer (9) is applied to the Al diffusion layer (8).
    • 提供了一种用于涂覆燃气轮机的中空的内部冷却的叶片(1)的方法,其中包括基于MCrAlY的结合层(6)和锆的陶瓷热障层(9)的外涂层(5) 氧化物施加到叶片(1)的外侧上的叶片(1)的基材(3)上,并且将包含Cr扩散层(7)的内涂层(4)施加到基材(3)上, (1)的内侧。 由此将MCrAlY基接合层(6)施加到成品刀片(1)上。 同时,与内涂层(4)一起,通过化学气相沉积也将Cr扩散层(7)施加到外涂层(5)的MCrAlY基结合层(6)上。 随后,通过化学气相沉积将Al扩散层(8)和外部脆性Al累积层施加到涂覆有Cr扩散层(7)的接合层(6)。 之后,通过研磨处理去除外部脆性Al堆积层,并将陶瓷热障层(9)施加到Al扩散层(8)。