CN105209648A - 保护涂层和具有所述保护涂层的燃气涡轮机部件 - Google Patents
保护涂层和具有所述保护涂层的燃气涡轮机部件 Download PDFInfo
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- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
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Abstract
本发明涉及一种保护涂层(3),其具有15至39wgt%的Co,10至25wgt%的Cr,5至15wgt%的Al,0.05至1wgt%的Y,0.5至10wgt%的Fe,其余为Ni和杂质。本发明还涉及具有所述保护涂层(3)的燃气涡轮机部件。
Description
技术领域
本发明涉及一种用于燃气涡轮机部件的保护涂层。
背景技术
涡轮机,特别是燃气涡轮机,具有涡轮,先前已经在压缩机中被压缩并且在燃烧室中被加热的热气体在涡轮中被膨胀,以完成作功。热气体的涡轮入口温度越高,燃气涡轮机的热力学效率越高。与此相反,对于可被施加到燃气涡轮机的部件,特别是导向叶片、转子叶片和壳体的热负荷,存在限制。
因此,希望开发燃气涡轮机部件,除了尽可能高的热负荷,其具有用于燃气涡轮机的操作的足够耐化学性。已知的是,向燃气涡轮机部件上应用保护涂层,以便据此保护燃气涡轮机部件不被氧化和腐蚀。照惯例,保护涂层由MCrAlX合金制成,其中M代表镍(Ni)和/或钴(Co),X例如代表钇(Y)、铼(Re)、钆(Gd)、镧(La)、铂(Pt)和/或稀土金属。当将保护涂层应用到燃气涡轮机部件时,保护涂层中的铝被氧化,并且所得到的氧化铝很好地粘合到燃气涡轮机部件,并且防止其氧化和腐蚀。
在上述元素中,X代表这样的元素,其近年来出现了急剧的涨价,使得传统的保护涂层是成本密集型的。另外,在氧化铝层中的氧化钇的夹杂导致氧的高扩散速率,这导致保护涂层的更快氧化。保护涂层的氧化导致据此燃气涡轮机部件不再受到保护,使得其使用寿命降低。
发明内容
本发明的目的是提供一种保护涂层和一种具有所述保护涂层的燃气涡轮机部件,其中保护涂层是成本有效的,并且燃气涡轮机部件具有很长的使用寿命。
所述目的是利用专利权利要求1和7的特征来实现的。优选实施例在其它专利权利要求中被说明。
根据本发明的保护涂层具有15至39wt%的钴(Co),10至25wt%的铬(Cr),5至15wt%的铝(Al),0.05至1wt%的钇(Y)和0.5至10wt%的铁(Fe)。根据本发明,其余包含镍(Ni)和不可避免的杂质。
此外,保护涂层的可选的另外的成分可以是钼(Mo),硅(Si),钽(Ta)和/或铪(Hf)。
保护涂层表示对氧化和腐蚀的有效保护。此外,由于高价值元素的低比例,保护涂层是具有成本效益的。在保护涂层中的铁部分还可稳定富铝相。
当施加保护涂层时,或当保护涂层暴露于热气体时,保护涂层中的铝氧化物可以被氧化,并且铝氧化物层形成在保护涂层的表面上。因为保护涂层中的钇含量低,只有极少量的氧化钇的夹杂物被形成在氧化铝层中。其结果是,只有非常少的氧可以被输送入保护涂层中,使得保护涂层具有长使用寿命。
优选地,保护涂层具有0.05至2wt%的钼(Mo)。对于保护涂层,优选的是具有0至4wt%的硅(Si)。保护涂层优选具有0至2wt%的钽(Ta)。对于保护涂层,进一步优选的是具有0至2wt%的铪(Hf)。
在保护涂层中的硫(S)的部分优选小于或等于8×10-6wt%。这进一步有利地提高了保护涂层的使用寿命。
此外,本发明涉及用于燃气涡轮机部件,特别是用于涡轮机叶片或燃烧室部件的上述保护涂层的使用。
根据本发明的燃气涡轮机部件具有保护涂层。燃气涡轮机部件优选具有基板,保护涂层被施加到基板上,其中所述基板由镍基超合金和/或钴基超合金制成。借助保护涂层的设置,在燃气涡轮机的运行中,燃气涡轮机部件具有很长的使用寿命。保护涂层优选具有30μm至800μm的厚度。
保护涂层优选通过热喷涂法,特别是在空气中,在真空中或在保护气体下,和/或通过物理沉积(物理气相沉积-PVD)法被施加到基板。
附图说明
根据本发明的燃气涡轮机部件的优选实施例,参照所附示意图被说明。该图显示了贯穿所述实施例的剖面。
具体实施方式
如图1所示,燃气涡轮机部件1具有基板2,保护涂层3和陶瓷层4。基板2例如是在燃气涡轮机的涡轮中的导向叶片或转子叶片。在那种情况下,基板2由镍基超合金或钴基超合金制成。具有30μm至800μm厚度的保护涂层3被直接施加到基板2上。在那种情况下,保护涂层3通过热喷涂法或物理沉积法被施加到基板2上,成分为15至39wt%的Co,10至25wt%的Cr,5至15wt%的Al,0.05至1wt%的Y,0.5至10wt%的Fe,0.05至2wt%的Mo,0至4wt%的Si,0至2wt%的Ta,0至2wt%的Hf并且其余为Ni和杂质。就杂质而言,硫S的部分小于或等于8×10-6wt%。
在保护涂层3的远离基板2取向的表面上,铝的氧化产生铝氧化物层,该铝氧化物层防止基板2氧化和腐蚀。直接在保护涂层3的顶部,存在陶瓷层4,其例如具有氧化锆或用氧化钇稳定的氧化锆。
下面参照多个示例对本发明进行更详细地解释。
第一示例性保护涂层3具有20wt%的Co,20wt%的Cr,10wt%的Al,0.1wt%的Y,5wt%的Fe和44.9wt%的Ni和相对少量的杂质。
第二示例性保护涂层3具有30wt%的Co,15wt%的Cr,15wt%Al,0.3wt%的Y,8wt%的Fe,1wt%的Mo和30.7wt%的Ni和相对少量的杂质。
第三示例性保护涂层3具有12wt%的Co,12wt%的Cr,15wt%的Al,0.5wt%的Y,10wt%的Fe,1wt%的Mo,3wt%的Si,0.5wt%的Ta,0.5wt%的Hf,45.5wt%的Ni和相对少量的杂质。
在三个示例性燃气涡轮机部件中,在每种情况下,所述三个示例性保护涂层通过热喷涂法被施加到由镍基超合金制成的基板上。
Claims (10)
1.一种保护涂层,其具有15至39wt%的Co,10至25wt%的Cr,5至15wt%的Al,0.05至1wt%的Y,0.5至10wt%的Fe,可选的Mo、Si、Ta和/或Hf,其余为Ni和杂质。
2.如权利要求1所述的保护涂层,其中所述保护涂层(3)具有0.05至2wt%的Mo。
3.如权利要求1或2所述的保护涂层,其中所述保护涂层(3)具有0至4wt%的Si。
4.如权利要求1至3中的任一项所述的保护涂层,其中所述保护涂层(3)具有0至2wt%的Ta。
5.如权利要求1至4中的任一项所述的保护涂层,其中所述保护涂层(3)具有0至2wt%的Hf。
6.如权利要求1至5中的任一项所述的保护涂层,其中所述保护涂层(3)中硫的部分小于或等于8×10-6wt%。
7.一种燃气涡轮机部件,其具有如权利要求1至6中的任一项所述的保护涂层(3)。
8.如权利要求7所述的燃气涡轮机部件,其中所述燃气涡轮机部件具有基板(2),所述保护性涂层(3)被施加到所述基板(2)上,其中所述基板(2)由镍基超合金和/或钴基超合金制成。
9.如权利要求7或8所述的燃气轮机部件,其中所述保护涂层(3)的厚度为30μm至800μm。
10.如权利要求8或9所述的燃气涡轮机部件,其中所述保护涂层(3)通过热喷涂法,特别是在空气中,在真空中或在保护气体下和/或通过物理沉积法被施加到所述基板(2)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102013209189.3A DE102013209189A1 (de) | 2013-05-17 | 2013-05-17 | Schutzbeschichtung und Gasturbinenkomponente mit der Schutzbeschichtung |
DE102013209189.3 | 2013-05-17 | ||
PCT/EP2014/058129 WO2014183962A1 (de) | 2013-05-17 | 2014-04-22 | Schutzbeschichtung und gasturbinenkomponente mit der schutzbeschichtung |
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CN105209648A true CN105209648A (zh) | 2015-12-30 |
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US (1) | US20160168667A1 (zh) |
EP (1) | EP2976440B1 (zh) |
CN (1) | CN105209648A (zh) |
DE (1) | DE102013209189A1 (zh) |
RU (1) | RU2631552C2 (zh) |
WO (1) | WO2014183962A1 (zh) |
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EP3985138A1 (en) * | 2020-10-14 | 2022-04-20 | Siemens Energy Global GmbH & Co. KG | Nicocral based alloy, a powder, a coating and a component |
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CN1427085A (zh) * | 2001-12-17 | 2003-07-02 | 三菱重工业株式会社 | 耐高温腐蚀合金、热障涂层材料、涡轮机构件及燃气涡轮机 |
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EP1463846B1 (en) * | 2002-01-10 | 2011-08-24 | Alstom Technology Ltd | Mcraly bond coating and method of depositing said mcraly bond coating |
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US3928026A (en) * | 1974-05-13 | 1975-12-23 | United Technologies Corp | High temperature nicocraly coatings |
DE3612568A1 (de) * | 1986-04-15 | 1987-10-29 | Bbc Brown Boveri & Cie | Hochtemperatur-schutzschicht |
DE3842301A1 (de) * | 1988-12-16 | 1990-06-21 | Asea Brown Boveri | Hochtemperatur-schutzschicht |
US5536022A (en) * | 1990-08-24 | 1996-07-16 | United Technologies Corporation | Plasma sprayed abradable seals for gas turbine engines |
FR2768750B1 (fr) * | 1997-09-25 | 1999-11-05 | Snecma | Procede pour ameliorer la resistance a l'oxydation et a la corrosion d'une piece en superalliage et piece en superalliage obtenue par ce procede |
EP1411210A1 (en) * | 2002-10-15 | 2004-04-21 | ALSTOM Technology Ltd | Method of depositing an oxidation and fatigue resistant MCrAIY-coating |
US8039117B2 (en) * | 2007-09-14 | 2011-10-18 | Siemens Energy, Inc. | Combustion turbine component having rare earth NiCoCrAl coating and associated methods |
DE102009010026A1 (de) * | 2009-02-21 | 2010-08-26 | Mtu Aero Engines Gmbh | Bauteil für eine Strömungsmaschine |
US9138963B2 (en) * | 2009-12-14 | 2015-09-22 | United Technologies Corporation | Low sulfur nickel base substrate alloy and overlay coating system |
US8790791B2 (en) * | 2010-04-15 | 2014-07-29 | Southwest Research Institute | Oxidation resistant nanocrystalline MCrAl(Y) coatings and methods of forming such coatings |
RU2597459C2 (ru) * | 2011-09-12 | 2016-09-10 | Сименс Акциенгезелльшафт | СИСТЕМА СЛОЕВ С ДВОЙНЫМ МЕТАЛЛИЧЕСКИМ MCrAlY-ПОКРЫТИЕМ |
EP2584068A1 (en) * | 2011-10-20 | 2013-04-24 | Siemens Aktiengesellschaft | Coating, coating layer system, coated superalloy component |
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- 2014-04-22 CN CN201480028507.6A patent/CN105209648A/zh active Pending
- 2014-04-22 EP EP14721805.1A patent/EP2976440B1/de active Active
- 2014-04-22 WO PCT/EP2014/058129 patent/WO2014183962A1/de active Application Filing
- 2014-04-22 US US14/891,012 patent/US20160168667A1/en not_active Abandoned
- 2014-04-22 RU RU2015154136A patent/RU2631552C2/ru active
Patent Citations (6)
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CN1433486A (zh) * | 2000-06-08 | 2003-07-30 | 表面工程设计产品公司 | 高温不锈钢涂覆系统 |
CN1427085A (zh) * | 2001-12-17 | 2003-07-02 | 三菱重工业株式会社 | 耐高温腐蚀合金、热障涂层材料、涡轮机构件及燃气涡轮机 |
EP1463846B1 (en) * | 2002-01-10 | 2011-08-24 | Alstom Technology Ltd | Mcraly bond coating and method of depositing said mcraly bond coating |
CN1483769A (zh) * | 2002-05-07 | 2004-03-24 | ���չ�˾ | 具有抗氧化性和抗疲劳性的金属涂料 |
CN1665959A (zh) * | 2002-07-09 | 2005-09-07 | 西门子公司 | 高耐氧化部件 |
US20040131865A1 (en) * | 2002-07-22 | 2004-07-08 | Kim George E. | Functional coatings for the reduction of oxygen permeation and stress and method of forming the same |
Also Published As
Publication number | Publication date |
---|---|
EP2976440B1 (de) | 2019-01-09 |
US20160168667A1 (en) | 2016-06-16 |
DE102013209189A1 (de) | 2014-11-20 |
WO2014183962A1 (de) | 2014-11-20 |
EP2976440A1 (de) | 2016-01-27 |
RU2015154136A (ru) | 2017-06-22 |
RU2631552C2 (ru) | 2017-09-25 |
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