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    Moderate density, low density, and extremely low density single crystal alloys for high AN2 applications
    4.
    发明申请
    Moderate density, low density, and extremely low density single crystal alloys for high AN2 applications 有权
    适用于高AN2应用的中等密度，低密度和极低密度单晶合金

    公开(公告)号：US20080170961A1

    公开(公告)日：2008-07-17

    申请号：US11638084

    申请日：2006-12-13

    申请人： Venkatarama K. Seetharaman ,  Alan D. Cetel

    发明人： Venkatarama K. Seetharaman ,  Alan D. Cetel

    IPC分类号： C22C19/05

    CPC分类号： F01D5/28 ,  C22C19/05 ,  C22C19/056 ,  C22C19/057 ,  C22F1/10 ,  F05D2300/607

    摘要： A single crystal alloy for high AN2 applications has a composition consisting essentially of from 4.0 to 10 wt % chromium, from 1.0 to 2.5 wt % molybdenum, up to 5.0 wt % tungsten, from 3.0 to 8.0 wt % tantalum, from 5.5 to 6.25 wt % aluminum, from 6.0 to 17 wt % cobalt, up to 0.2 wt % hafnium, from 4.0 to 6.0 wt % rhenium, from 1.0 to 3.0 wt % ruthenium, and the balance nickel. Further, these single crystal alloys have a total tungsten and molybdenum content in the range of from 1.0 to 7.5 wt %, preferably from 2.0 to 7.0 wt %, a total refractory element content in the range of from 9.0 to 24.5 wt %, preferably from 13 to 22 wt %, a ratio of rhenium to a total refractory element content in the range of from 0.16 to 0.67, preferably from 0.20 to 0.45, a density in the range of from 0.300 to 0.325 lb/in3, and a specific creep strength in the range from 106×103 to 124×103 inches. These alloys provide (a) increased creep strength for a given density and (b) specific creep strengths as high as or higher than all 2nd generation single crystal alloys with a significant decrease in density.

    摘要翻译： 用于高AN 2应用的单晶合金具有基本上由4.0至10重量％的铬，1.0至2.5重量％的钼，至多5.0重量％的钨，3.0至8.0重量％ 的钽，5.5至6.25重量％的铝，6.0至17重量％的钴，至多0.2重量％的铪，4.0至6.0重量％的铼，1.0至3.0重量％的钌，余量为镍。 此外，这些单晶合金的总钨和钼含量范围为1.0-7.5重量％，优选2.0-7.0重量％，总耐火元素含量为9.0-24.5重量％，优选为 13至22重量％，铼与总难熔元素含量的比例在0.16至0.67，优选0.20至0.45的范围内，密度在0.300至0.325lb / in 3范围内， SUP>，并且在106×10 3至124×3×3英寸的范围内的特异性蠕变强度。 这些合金提供（a）给定密度增加的蠕变强度和（b）具有高于或高于密度显着降低的所有第二代和第二代单晶合金的特定蠕变强度。

    Strip process for superalloys
    7.
    发明授权
    Strip process for superalloys 有权
    超级合金的剥离工艺

    公开(公告)号：US08475598B2

    公开(公告)日：2013-07-02

    申请号：US13331019

    申请日：2011-12-20

    申请人： Alan D. Cetel ,  Curtis Heath Riewe ,  Dwayne A. Braithwaite

    发明人： Alan D. Cetel ,  Curtis Heath Riewe ,  Dwayne A. Braithwaite

    IPC分类号： C23G1/02 ,  C23C16/00

    CPC分类号： C23F1/44 ,  C23C10/02 ,  C23C10/60 ,  C23C28/022 ,  C23C28/023 ,  C23C28/028 ,  F01D5/288 ,  F05D2300/132 ,  Y10T428/12882

    摘要： A process for forming a coated substrate comprises providing a nickel base alloy substrate, depositing a chromium coating onto the nickel base alloy substrate and diffusing chromium from said coating into the substrate, applying a MCrAlY coating onto the nickel base alloy substrate and heat treating the substrate with the deposited chromium and the MCrAlY coating so that chromium diffuses into an outer region of the substrate. Further, in accordance with the present invention, a strip process for removing a coating from a substrate broadly comprises the steps of providing a nickel base alloy substrate having chromium diffused into an outer region and a MCrAlY coating deposited over the substrate with the diffused chromium and removing the MCrAlY coating by immersing the nickel base alloy substrate in an acid solution containing a sulfuric acid-hydrochloric acid mixture in water.

    摘要翻译： 一种形成涂覆基材的方法包括提供镍基合金基材，在镍基合金基材上沉积铬涂层并将铬从所述涂层扩散到基材中，将MCrAlY涂层施加到镍基合金基底上并热处理基板 与沉积的铬和MCrAlY涂层，使得铬扩散到衬底的外部区域。 此外，根据本发明，用于从基底去除涂层的剥离方法广泛地包括以下步骤：提供具有扩散到外部区域的铬的镍基合金基底和在基底上沉积有扩散的铬的MCrAlY涂层和 通过将镍基合金基材浸入含有硫酸 - 盐酸混合物的水溶液的酸溶液中来除去MCrAlY涂层。

    Stable heat treatable nickel superalloy single crystal articles and compositions
    10.
    发明授权
    Stable heat treatable nickel superalloy single crystal articles and compositions 失效
    稳定的可热处理镍超合金单晶制品和组合物

    公开(公告)号：US6054096A

    公开(公告)日：2000-04-25

    申请号：US962899

    申请日：1997-11-03

    申请人： David N. Duhl ,  Alan D. Cetel

    发明人： David N. Duhl ,  Alan D. Cetel

    IPC分类号： C22C19/05

    CPC分类号： C22C19/057

    摘要： Improved compositions for fabricating nickel superalloy single crystal articles are described. The compositions are characterized by the substantial absence of carbon, boron, zirconium and vanadium and intentional additions of cobalt. The cobalt additions increase the stability of the compositions and provide enhanced heat treatability. Single crystal articles of these compositions have utility as gas turbine engine components.

    摘要翻译： 描述了用于制造镍超合金单晶制品的改进的组合物。 组合物的特征在于基本上不存在碳，硼，锆和钒并有意添加钴。 钴添加剂增加组合物的稳定性并提供增强的热处理性。 这些组合物的单晶制品可用作燃气涡轮发动机部件。