Gas turbine shroud with ceramic abradable coatings
    5.
    发明公开
    Gas turbine shroud with ceramic abradable coatings 有权
    GASTURBINENUMMANTELUNG MIT ABREIBBAREN KERAMISCHEN BESCHICHTUNGEN

    公开(公告)号:EP2354276A1

    公开(公告)日:2011-08-10

    申请号:EP11151974.0

    申请日:2011-01-25

    申请人: Hitachi Ltd.

    IPC分类号: C23C28/00 F01D11/08

    摘要: There is provided a gas turbine shroud including a ceramic abradable coating used as a gap adjusting component that can reduce a fluid leakage from a gap and increase turbine efficiency. A gas turbine ceramic abradable coating includes a bond layer (2), a thermal barrier ceramic layer (3), and a porous ceramic abradable layer (4) (hardness may be RC15Y: 80±3). A slit groove (5) is provided in the porous ceramic abradable layer (4) by machining. A width of a rectangular section of the ceramic abradable layer (4) divided by the slit groove (5) may be set to a range of 2 to 7 mm.

    摘要翻译: 提供了一种燃气轮机罩,其包括用作间隙调节部件的陶瓷耐磨涂层,其可以减少从间隙泄漏的液体并提高涡轮机效率。 燃气轮机陶瓷耐磨涂层包括粘合层(2),热障陶瓷层(3)和多孔陶瓷耐磨层(4)(硬度可以是RC15Y:80±3)。 通过机加工在多孔陶瓷耐磨层(4)中设置狭槽(5)。 由狭缝槽(5)分割的陶瓷耐磨层(4)的矩形截面的宽度可以设定在2〜7mm的范围内。

    Turbine blade for industrial gas turbine and industrial gas turbine
    10.
    发明公开
    Turbine blade for industrial gas turbine and industrial gas turbine 审中-公开
    工业工业和工业汽车工程学院

    公开(公告)号:EP2690197A1

    公开(公告)日:2014-01-29

    申请号:EP13169377.2

    申请日:2013-05-27

    IPC分类号: C23C28/00 F01D5/28

    摘要: A turbine blade for industrial gas turbine is used which includes a blade substrate formed of a single-crystal heat-resistant alloy containing C: 0.06 to 0.08%, B: 0.016 to 0.035%, Hf: 0.2 to 0.3%, Cr: 6.9 to 7.3%, Mo: 0.7 to 1.0%, W: 7.0 to 9.0%, Re: 1.2 to 1.6%, Ta: 8.5 to 9.5%, Nb: 0.6 to 1.0%, Al: 4.9 to 5.2%, Co: 0.8 to 1.2%, and the remainder substantially consisting of Ni with reference to mass, and includes a diffusion barrier layer, a metal layer, a bond coat, and a top coat, these layers and coats being stacked in this order on a surface of the blade substrate, the metal layer having a thickness of 5 to 30 µm. Thus, the turbine blade can be provided which has a thermal barrier coating formed without loss of a function of the diffusion barrier layer.

    摘要翻译: 使用工业燃气轮机的涡轮叶片,其包括由C:0.06〜0.08%,B:0.016〜0.035%,Hf:0.2〜0.3%,Cr:6.9〜 7.3%,Mo:0.7〜1.0%,W:7.0〜9.0%,Re:1.2〜1.6%,Ta:8.5〜9.5%,Nb:0.6〜1.0%,Al:4.9〜5.2%,Co:0.8〜1.2 %,余量基本上由质量的Ni组成,并且包括扩散阻挡层,金属层,粘合涂层和顶涂层,这些层和涂层依次层叠在刮板基板的表面上 ,金属层的厚度为5〜30μm。 因此,可以提供涡轮叶片,其具有在不丧失扩散阻挡层的功能的情况下形成的热障涂层。