Casting method, apparatus and product

    公开(公告)号:US10711617B2

    公开(公告)日:2020-07-14

    申请号:US16108429

    申请日:2018-08-22

    发明人: Rajeev Naik

    摘要: A casting method and apparatus are provided for casting a near-net shape article, such as for example a gas turbine engine blade or vane having a variable cross-section along its length. A molten metallic melt is provided in a heated mold having an article-shaped mold cavity with a shape corresponding to that of the article to be cast. The melt-containing mold and mold heating furnace are relatively moved to withdraw the melt-containing mold from the furnace through an active cooling zone where cooling gas is directed against the exterior of the mold to actively extract heat. At least one of the mold withdrawal rate, the cooling gas mass flow rate, and mold temperature are adjusted at the active cooling zone as the melt-containing mold is withdrawn through the active cooling zone to produce an equiaxed grain microstructure along at least a part of the length of the article.

    Pt-al-hf/zr coating and method
    4.
    发明申请
    Pt-al-hf/zr coating and method 有权
    Pt-al-hf / zr涂层和方法

    公开(公告)号:US20140134447A1

    公开(公告)日:2014-05-15

    申请号:US13694124

    申请日:2012-10-31

    申请人: Kenneth S. Murphy

    发明人: Kenneth S. Murphy

    IPC分类号: F01D5/28 C22C21/00 C22C5/04

    摘要: A Pt—Al—Hf/Zr aluminide coating that can be used as a bond coat for TBC and improve TBC spallation life in service at elevated temperatures is provided. The aluminide coating can include a metastable ternary or higher X—Pt/Pd—Ni phase where the phase and other elements in the alloy system are present in a NiAl β phase of the coating. The metastable phase can be present and observable in the as-deposited condition of the bond coating; e.g. in an as-CVD deposited condition of the bond coating.

    摘要翻译: 提供了一种Pt-Al-Hf / Zr铝化物涂层,可用作TBC的粘合涂层,并提高了在高温下使用的TBC剥落寿命。 铝化物涂层可以包括亚稳三元或更高的X-Pt / Pd-Ni相,其中合金体系中的相和其它元素存在于NiAl / bgr中; 涂层的相。 亚稳相可以在粘结涂层的沉积条件下存在和观察到; 例如 以CVD的沉积条件进行粘结涂层。

    Fugitive core tooling and method
    5.
    发明申请
    Fugitive core tooling and method 审中-公开
    逃逸核心工具和方法

    公开(公告)号:US20110094698A1

    公开(公告)日:2011-04-28

    申请号:US12589801

    申请日:2009-10-28

    IPC分类号: B22C9/10 B22C7/06 B22C13/12

    CPC分类号: B22C7/02 B22C9/04

    摘要: A ceramic core is produced by introducing a fluid ceramic core material, such as a ceramic slurry, into a core-shaped cavity formed at least in part by one or more fugitive core tooling liners residing in a back-up body, removing the ceramic core from the cavity, and removing the one or more fugitive tooling liners from the back-up die body and discarding them. The fugitive tooling liners and optional tooling inserts are used in one or more production cycles (e.g. ceramic slurry injection cycle) to make a single or multiple ceramic cores and then replaced with fresh (un-used) tooling liners and optional inserts to make other ceramic cores.

    摘要翻译: 通过将诸如陶瓷浆料的流体陶瓷芯材料引入至少部分地由驻留在支撑体中的一个或多个短暂的芯模工具衬里形成的芯形空腔中来制造陶瓷芯,去除陶瓷芯 并且从备用模具主体移除一个或多个逃逸模具衬垫并将其丢弃。 在一个或多个生产周期(例如陶瓷浆料注射循环)中使用逃逸模具衬垫和可选的模具刀片,以制造单个或多个陶瓷芯,然后用新鲜(未使用的)模具衬套和可选插入件替换以制造其他陶瓷 核心。

    Pt-Al-Hf/Zr coating and method
    6.
    发明申请
    Pt-Al-Hf/Zr coating and method 有权
    Pt-Al-Hf / Zr涂层及方法

    公开(公告)号:US20100297471A1

    公开(公告)日:2010-11-25

    申请号:US12800597

    申请日:2010-05-18

    申请人: Kenneth S. Murphy

    发明人: Kenneth S. Murphy

    IPC分类号: C23C16/06 C09D1/00 B32B15/01

    摘要: A Pt—Al—Hf/Zr aluminide coating that can be used as a bond coat for TBC and improve TBC spallation life in service at elevated temperatures is provided. The aluminide coating can include a metastable ternary or higher X—Pt/Pd—Ni phase where the phase and other elements in the alloy system are present in a NiAl β phase of the coating. The metastable phase can be present and observable in the as-deposited condition of the bond coating; e.g. in an as-CVD deposited condition of the bond coating.

    摘要翻译: 提供了一种Pt-Al-Hf / Zr铝化物涂层,可用作TBC的粘合涂层,并提高了在高温下使用的TBC剥落寿命。 铝化物涂层可以包括亚稳三元或更高的X-Pt / Pd-Ni相,其中合金体系中的相和其它元素存在于NiAl / bgr中; 涂层的相。 亚稳相可以在粘结涂层的沉积条件下存在和观察到; 例如 以CVD的沉积条件进行粘结涂层。

    Crucible for melting high chromium alloys
    7.
    发明申请
    Crucible for melting high chromium alloys 审中-公开
    坩埚用于熔化高铬合金

    公开(公告)号:US20080269041A1

    公开(公告)日:2008-10-30

    申请号:US11796961

    申请日:2007-04-30

    申请人: Alfred P. Kaulius

    发明人: Alfred P. Kaulius

    IPC分类号: C04B35/48

    摘要: A crucible material comprises in weight % as a dry particulates mixture, before sintering, about 89% to about 93% ZrO2, about 7% to about 11% Y2O3, up to about 0.6% SiO2 as an impurity element, and is substantially free of magnesia. The crucible can be used in the melting or holding of a high chromium sputtering target alloy to provide a low oxygen concentration of the melted alloy of 300 ppm by weight or less.

    摘要翻译: 在烧结之前,坩埚材料以干燥颗粒混合物的重量%计含有约89%至约93%的ZrO 2,约7%至约11%的Y 2 O 3%,最多约0.6%的SiO 2作为杂质元素,并且基本上不含氧化镁。 坩埚可用于熔融或保持高铬溅射靶合金,以提供300重量ppm以下的熔融合金的低氧浓度。

    Method of forming aluminide diffusion coatings
    8.
    发明授权
    Method of forming aluminide diffusion coatings 有权
    形成铝化物扩散涂层的方法

    公开(公告)号:US07273635B2

    公开(公告)日:2007-09-25

    申请号:US10674059

    申请日:2003-09-29

    IPC分类号: C23C16/12

    摘要: Method of forming an outwardly grown aluminide diffusion coating on a superalloy substrate disposed in a coating retort including the steps of heating the substrate to a temperature of 900 to 1200 degrees C., flowing a coating gas comprising aluminum trichloride and a carrier gas through the coating retort at a flow rate of the coating gas of about 100 to about 450 standard cubic feet per hour, providing a concentration of aluminum trichloride in the retort of less than 1.4% by volume of the coating gas, and providing a total pressure of the coating gas in the coating retort of about 100 to about 450 Torr.

    摘要翻译: 在设置在涂层蒸煮器中的超级合金基底上形成向外生长的铝化物扩散涂层的方法,包括以下步骤:将基底加热至900至1200℃的温度,使包含三氯化铝和载气的涂覆气体通过涂层 以约100至约450标准立方英尺/小时的涂覆气体的流速进行蒸煮,提供在蒸煮中的三氯化铝浓度小于涂布气体的1.4体积%,并提供涂层的总压力 涂层蒸馏器中的气体约为100至约450乇。

    Method of making sputtering target and target
    9.
    发明申请
    Method of making sputtering target and target 审中-公开
    制造溅射靶和靶的方法

    公开(公告)号:US20070051623A1

    公开(公告)日:2007-03-08

    申请号:US11513822

    申请日:2006-08-31

    IPC分类号: C23C14/00

    摘要: Method of making a sputtering target wherein the number of processing steps is reduced by providing melted sputtering target material in a heated mold and solidifying the melted material in the mold using a unidirectional heat removal process to produce a sputtering target with a selective grain orientation. The method can produce a solidified sputtering target having a selectively oriented multigrain microstructure or a selectively oriented single crystal microstructure suited or tailored to the sputtering process to be subsequently employed using the target.

    摘要翻译: 制造溅射靶的方法,其中通过在加热的模具中提供熔融的溅射靶材料并使用单向除热工艺将熔融的材料固化以制备具有选择性晶粒取向的溅射靶,从而减少加工步骤的数量。 该方法可以产生具有选择性取向的多股微结构的固化溅射靶,或者适用于或适合溅射工艺的选择性取向的单晶微结构,以随后使用该靶。