PROTECTIVE COATING PROTECTING PRODUCT AGAINST CORROSION AND OXIDATION AT HIGH TEMPERATURE

    公开(公告)号:JP2003201533A

    公开(公告)日:2003-07-18

    申请号:JP2002305324

    申请日:2002-10-21

    Applicant: SIEMENS AG

    Inventor: STAMM WERNER

    Abstract: PROBLEM TO BE SOLVED: To provide a protective coating which has satisfactory heat resistance and long term stability against corrosion and oxidation, and is further suited to mechanical stress forecast in a gas turbine at high temperatures in particular. SOLUTION: The protective coating consists of, by weight, 0.5 to 2% rhenium, 15 to 21% chromium, 9 to 11.5% aluminum, 0.05 to 0.7% yttrium and/or at least one equivalent metal selected from the group consisting of scandium and rare earth elements, and 0 to 1% ruthenium, and the balance cobalt and/or nickel with impurities derived from production. The alloy does not produce precipitates of chromium/rhenium, and exhibits no embrittlement by brittle phases caused by the precipitates. COPYRIGHT: (C)2003,JPO

    Protective coating
    3.
    发明专利
    Protective coating 有权
    保护涂层

    公开(公告)号:JP2004218086A

    公开(公告)日:2004-08-05

    申请号:JP2004001777

    申请日:2004-01-07

    Inventor: STAMM WERNER

    Abstract: PROBLEM TO BE SOLVED: To provide a protective coating material having both excellent corrosion resistance and mechanical properties and being applicable even to a gas turbine whose inlet temperature is more than 1,200°C for example. SOLUTION: The protective coating is composed of 26-30% nickel, 20-28% chromium, 8-12% aluminum, 0.1-3% reactive elements of at least one kind of rare earth elements and the balance cobalt expressed in terms of weight percent. The material has excellent mechanical properties and also excellent corrosion resistance and exhibits 2.5 times life of a conventional coating on an oxidation test. COPYRIGHT: (C)2004,JPO&NCIPI

    Abstract translation: 要解决的问题:提供具有优异的耐腐蚀性和机械性能的保护涂层材料,并且甚至可应用于例如入口温度高于1200℃的燃气轮机。

    解决方案:保护涂层由26-30%的镍,20-28%的铬,8-12%的铝,0.1-3%的至少一种稀土元素的反应元素组成,余量为 重量百分比。 该材料具有优异的机械性能和优异的耐腐蚀性,并且在氧化试验中表现出常规涂层的2.5倍寿命。 版权所有(C)2004,JPO&NCIPI

    NiCoCrAl LAYER AND METAL LAYER SYSTEM
    5.
    发明申请
    NiCoCrAl LAYER AND METAL LAYER SYSTEM 审中-公开
    NiCoCrAl膜以及金属层系

    公开(公告)号:WO2008061813A3

    公开(公告)日:2009-05-28

    申请号:PCT/EP2007058429

    申请日:2007-08-15

    Inventor: STAMM WERNER

    Abstract: NiCoCrAl layers for use as anticorrosive layers are known from the prior art. Corrosion stability is not only determined by the composition and the percentage of the main alloy elements of nickel, cobalt, chromium and aluminium, but also by the addition of corrosion stability enhancing agents, such as e.g. yttrium. The invention is characterized by additional corrosion stability enhancing agents that substantially improve the anticorrosive properties.

    Abstract translation: NiCoCrAl层被称为现有技术的腐蚀保护涂层。 除了所述组合物中,除了主要的合金元素镍,钴,铬和铝,通过加入Korrosionsverbesserern的腐蚀行为,如例如的比例 钇确定。 本发明进一步Korrosionsverbesserer被提出了显著改善的防腐蚀保护。

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