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    • 7. 发明申请
    • METHOD FOR PROVIDING DUCTILE ENVIRONMENTAL COATING HAVING FATIGUE AND CORROSION RESISTANCE
    • 提供具有耐疲劳性和耐腐蚀性的耐腐蚀环氧涂层的方法
    • US20100330295A1
    • 2010-12-30
    • US12494813
    • 2009-06-30
    • Brian Thomas HazelMing Fu
    • Brian Thomas HazelMing Fu
    • C23C4/08B05D3/02C23C16/44C23C14/34
    • C23C28/028C23C4/073C23C10/56C23C28/021C23C30/00
    • Method includes providing a superalloy substrate such as a turbine disk, a turbine seal, a turbine blade, a turbine nozzle, a turbine shroud, or a turbine frame or case having an under platform or non-gas path region; and providing a predominantly gamma-prime nickel aluminide intermetallic ductile corrosion and oxidation resistant coating disposed on at least a portion of the substrate. The coating comprises from about 15 to about 30 atomic % aluminum, up to about 20 atomic % chromium, optionally, up to about 30 atomic % of at least one platinum group metal, optionally, up to about 4 atomic % of at least one reactive element, and optionally, up to about 15 atomic % of at least one strengthening element, and a balance being essentially nickel or nickel and at least one of cobalt, iron, or cobalt and iron. A coating precursor composition may be applied to the substrate before or after optional plating with one or more platinum group metals.
    • 方法包括提供诸如涡轮盘,涡轮密封件,涡轮叶片,涡轮喷嘴,涡轮机罩或具有下平台或非气体路径区域的涡轮机框架或壳体的超级合金基板; 并且提供主要是γ-基铝酸镍金属间金属延性腐蚀和抗氧化涂层,其设置在所述基底的至少一部分上。 涂层包含约15至约30原子%的铝,至多约20原子%的铬,任选的至多约30原子%的至少一种铂族金属,任选的至多约4原子%的至少一种反应性 元素和任选地至多约15原子%的至少一种强化元素,余量基本上为镍或镍以及钴,铁或钴和铁中的至少一种。 涂覆前体组合物可以在用一种或多种铂族金属任选镀覆之前或之后施加到基材上。