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    Casting processes, casting apparatuses therefor, and castings produced thereby
    1.
    发明授权
    Casting processes, casting apparatuses therefor, and castings produced thereby 有权
    铸造工艺，铸造设备和由此生产的铸件

    公开(公告)号：US08210240B2

    公开(公告)日：2012-07-03

    申请号：US12474475

    申请日：2009-05-29

    申请人： Shyh-Chin Huang ,  Stephen Francis Rutkowski ,  Michael Francis Xavier Gigliotti, Jr. ,  Roger John Petterson ,  Lawrence Bernard Kool

    发明人： Shyh-Chin Huang ,  Stephen Francis Rutkowski ,  Michael Francis Xavier Gigliotti, Jr. ,  Roger John Petterson ,  Lawrence Bernard Kool

    IPC分类号： B22C9/04 ,  B22D27/04

    CPC分类号： B22D27/045

    摘要： A casting process and apparatus for producing directionally-solidified castings, and castings produced therewith. The process entails applying a facecoat slurry to a surface within a mold cavity to form a continuous solid facecoat on the surface, introducing a molten metal alloy into the mold cavity so that the molten metal alloy contacts the facecoat, and then immersing the mold in a liquid coolant to cool and solidify the molten metal alloy and form a casting of the metal alloy, during which an oxide layer forms on the casting surface. The facecoat is sufficiently adherent to the oxide layer such that at least a portion of the facecoat detaches from the mold surface and remains tightly adhered to the casting surface in the event the casting contracts during cooling. The facecoat contains at least 60 weight percent of a first phase of yttria, and the balance of the facecoat is a binder phase of an inorganic material.

    摘要翻译： 用于生产定向凝固铸件的铸造工艺和设备，以及由其制造的铸件。 该方法需要将表面涂层浆料施加到模腔内的表面以在表面上形成连续的实心面涂层，将熔融金属合金引入模腔中，使得熔融金属合金接触面涂层，然后将模具浸入 液体冷却剂以冷却和固化熔融金属合金，并形成金属合金的铸件，在此期间在铸造表面上形成氧化物层。 表面涂层与氧化物层充分贴合，使得至少一部分正面涂层在模具表面脱离并在冷却期间铸件收缩的情况下保持紧密地粘附于铸造表面。 面涂层含有至少60重量％的第一相的氧化钇，其余的表面涂层是无机材料的粘结相。

    Liquid metal cooled directional solidification process
    4.
    发明授权
    Liquid metal cooled directional solidification process 有权
    液态金属冷却定向凝固工艺

    公开(公告)号：US06276433B1

    公开(公告)日：2001-08-21

    申请号：US09425307

    申请日：1999-10-25

    申请人： Michael Francis Xavier Gigliotti, Jr. ,  Shyh-Chin Huang ,  Roger John Petterson ,  Ji-Cheng Zhao

    发明人： Michael Francis Xavier Gigliotti, Jr. ,  Shyh-Chin Huang ,  Roger John Petterson ,  Ji-Cheng Zhao

    IPC分类号： B22D2704

    CPC分类号： B22D21/025 ,  B22D27/045

    摘要： A liquid metal cooled directional solidification process provides improved solidification characteristics at the solidification front. In the process, a mold is filled with molten metal; and a solidification interface is caused to pass through the molten metal by progressively immersing the mold into a cooling liquid. The cooling liquid is a eutectic or near eutectic metal composition. A directional solidification furnace includes a heating furnace, a liquid cooling bath and a mold positioner. The heating furnace has an open bottom end through which a heated mold containing molten metal is lowered from the furnace. The liquid cooling bath comprises a molten eutectic or near eutectic metal composition positioned beneath the open end of the furnace. The mold positioner gradually lowers the heated mold from the furnace, through the open end and immerses the mold into the liquid cooling bath.

    摘要翻译： 液态金属冷却定向凝固方法在凝固前沿提供了改进的凝固特性。 在该过程中，模具中充满熔融金属; 并且通过将模具逐渐浸入冷却液中，使凝固界面通过熔融金属。 冷却液是共晶或近共晶金属组成。 定向凝固炉包括加热炉，液体冷却槽和模具定位器。 加热炉具有开口的底端，含有熔融金属的加热模具通过该底端从炉中降低。 液体冷却浴包括位于炉的开口端下方的熔融共晶或近共晶金属组合物。 模具定位器通过开口端将炉子的加热模具逐渐降低，并将模具浸入液体冷却浴中。

    Nickel-Based Superalloys and Articles
    8.
    发明申请
    Nickel-Based Superalloys and Articles 审中-公开
    镍基超合金和制品

    公开(公告)号：US20110076181A1

    公开(公告)日：2011-03-31

    申请号：US12570861

    申请日：2009-09-30

    申请人： Akane Suzuki ,  Michael Francis Xavier Gigliotti, Jr. ,  Shyh-Chin Huang ,  Pazhayannur Ramanathan Subramanian

    发明人： Akane Suzuki ,  Michael Francis Xavier Gigliotti, Jr. ,  Shyh-Chin Huang ,  Pazhayannur Ramanathan Subramanian

    IPC分类号： C22C19/05 ,  B22D27/04

    CPC分类号： C22C19/057 ,  C30B11/00 ,  C30B28/06 ,  C30B29/52 ,  C30B29/605

    摘要： Rhenium-free nickel based alloys are provided. More particularly, the alloys comprise preferred levels and ratios of elements so as to achieve good high temperature strength of both gamma matrix phase and gamma prime precipitates, as well as good environmental resistance, without using rhenium. When cast and directionally solidified into single crystal form, the alloys exhibit oxidation resistance better than or comparable to rhenium-bearing single-crystal alloys, and creep rupture life comparable to rhenium-bearing single-crystal alloys. Further, the alloys can be processed by directional solidification into articles in single crystal form or columnar structure comprising fine dendrite arm spacing, e.g., less than 400 μm, if need be, so that further improvements in mechanical properties in the articles can be seen.

    摘要翻译： 提供无铼镍基合金。 更具体地，合金包括优选的含量和元素比例，以便在不使用铼的情况下实现γ基质相和γ初始沉淀物的良好的高温强度以及良好的耐环境性。 当铸造和定向凝固成单晶形式时，合金表现出比具有铼承载单晶合金更好或可媲美的抗氧化性，以及与含铼单晶合金相当的蠕变断裂寿命。 此外，如果需要，合金可以通过定向固化加工成单晶形状或柱状结构的制品，包括细小的枝晶臂间距，例如小于400μm，从而可以看到制品中机械性能的进一步改善。

    Titanium alloys having refined dispersoids and method of making
    10.
    发明授权
    Titanium alloys having refined dispersoids and method of making 失效
    具有精制分散体和制造方法的钛合金

    公开(公告)号：US5830288A

    公开(公告)日：1998-11-03

    申请号：US619225

    申请日：1996-03-20

    申请人： Michael Francis Xavier Gigliotti, Jr. ,  Ernest Leroy Hall

    发明人： Michael Francis Xavier Gigliotti, Jr. ,  Ernest Leroy Hall

    IPC分类号： C22C14/00 ,  C22C32/00

    CPC分类号： C22C32/0031 ,  C22C14/00 ,  B22F2998/10

    摘要： Additions of a first alloy constituent of at least one element from the group consisting of Y, Sc, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, or any combinations of them, and a second alloy constituent of at least one element from the group consisting of C, Si, Ge, Sn and Pb, or any combinations of them, to Ti-base alloys can be employed so as to result in an alloy containing an very fine, substantially homogeneous oxide dispersoid of the first constituent, and produce alloys having improved tensile properties, especially tensile elongation. The dispersoid results from the decomposition of an intermediate phase dispersoid comprising a compound of the first and second constituents which results from rapid solidification of the alloy from a melt. It is preferred that the second alloy constituent should be at a concentration sufficient to form the intermediate phase with all of the element or elements comprising the first alloy constituent.

    摘要翻译： 从Y，Sc，La，Ce，Pr，Nd，Pm，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb和Lu组成的组中添加至少一种元素的第一合金成分 ，或它们的任何组合，并且可以使用由C，Si，Ge，Sn和Pb组成的组中的至少一种元素或它们的任意组合的第二合金成分与Ti基合金，从而得到 在含有第一组分的非常细的基本上均匀的氧化物分散体的合金中，并且生产具有改善的拉伸性能，特别是拉伸伸长率的合金。 分散体是由中间相分散体的分解产生的，该中间相分散体包含第一和第二组分的化合物，这是由熔体快速固化合金而产生的。 优选地，第二合金成分的浓度足以形成中间相，其中所有的元素或元素都包含第一合金成分。