Titanium alloys having refined dispersoids and method of making
    12.
    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

    IPC分类号: C22C14/00 C22C32/00

    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。

    Reinforced ceramic shell molds, and related processes
    14.
    发明授权
    Reinforced ceramic shell molds, and related processes 失效
    加强陶瓷外壳模具及相关工艺

    公开(公告)号:US06467534B1

    公开(公告)日:2002-10-22

    申请号:US09542737

    申请日:2000-04-05

    IPC分类号: B22C100

    CPC分类号: B22C9/04

    摘要: A ceramic casting shell mold having a pre-selected shape comprises alternate, repeating layers of a ceramic coating material and a ceramic stucco, defining a total thickness of the shell mold; and a ceramic-based reinforcing sheet disposed in the alternate, repeating layers of coating material and stucco at an intermediate thickness. The ceramic-based reinforcing sheet comprises a one-piece monolithic, integral body, which comprises a pattern of holes that enhance bonding between the ceramic-based reinforcing sheet and adjacent ones of the alternate, repeating layers of ceramic coating material. The ceramic-based reinforcing sheet conforms to the shape of the mold and providing structural reinforcement to the mold.

    摘要翻译: 具有预选形状的陶瓷铸造壳模具包括限定壳模的总厚度的交替重复层陶瓷涂层材料和陶瓷灰泥; 以及设置在中间厚度的涂层材料和灰泥的交替重复层中的陶瓷基增强片。 陶瓷基增强片包括一体式整体式整体,其包括增强陶瓷基增强片与陶瓷涂层材料的相邻重复层之间的粘合的孔的图案。 陶瓷基增强板符合模具的形状并为模具提供结构加固。

    Continuously-graded bond coat and method of manufacture
    17.
    发明授权
    Continuously-graded bond coat and method of manufacture 失效
    连续分级粘结涂层及其制造方法

    公开(公告)号:US06287644B1

    公开(公告)日:2001-09-11

    申请号:US09346915

    申请日:1999-07-02

    IPC分类号: B05D306

    摘要: A continuously-graded bond coat comprises a gradient of at least one material characteristic value. The gradient extends from a first material characteristic value at a first surface region to a second material characteristic value at a second surface region. The continuously-graded bond coat can be used in a thermal barrier coating system. A source ingot for forming the continuously-graded bond coat comprises aluminum, in an atomic percent range from about 50.0 to less than about 100.0; chromium in an atomic percent range from about 5.0 to about 40.0; silicon in an atomic percent range from about 1.0 to about 17.0; zirconium in an atomic percent range from about a trace to about a 0.5, yttrium in an atomic percent range from a trace to about 2.0; and hafnium in an atomic percent range from about 0.5 to about 2.0. A method for forming the continuously-graded bond coat with the gradient is also provided by the invention.

    摘要翻译: 连续分级的粘合涂层包括至少一种材料特性值的梯度。 梯度从第一表面区域处的第一材料特性值延伸到第二表面区域处的第二材料特性值。 连续分级的粘合涂层可用于热障涂层体系。 用于形成连续梯度粘合涂层的源锭包括铝,其原子百分比范围为约50.0至小于约100.0; 原子百分比范围为约5.0至约40.0的铬; 原子百分比范围为约1.0至约17.0的硅; 原子百分比范围从约痕量至约0.5的锆,原子百分比范围从痕量至约2.0的钇; 和铪的原子百分比范围为约0.5至约2.0。 通过本发明也提供了用梯度形成连续梯度粘结涂层的方法。

    Graded bond coat for a thermal barrier coating system
    18.
    发明授权
    Graded bond coat for a thermal barrier coating system 失效
    分层粘合涂层用于热障涂层系统

    公开(公告)号:US5912087A

    公开(公告)日:1999-06-15

    申请号:US905628

    申请日:1997-08-04

    摘要: A bond coat of a thermal barrier coating system for components designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The composition of the bond coat has graded thermal expansion properties that moderate the transition between a metal substrate and a thermal-insulating ceramic layer of a TBC protecting the substrate, while also reducing the service temperature of the bond coat so as to reduce its rate of oxidation. Preferably, the bond coat has multiple layers, with the coefficients of thermal conductivity of the individual bond coat layers being very close to that of the substrate in order to promote heat transfer from the outward layer of the bond coat to the substrate. By minimizing the service temperature of the bond coat while grading the thermal expansion properties through the coating system, a more spall-resistant coating system is achieved.

    摘要翻译: 用于在恶劣热环境中使用的部件的热障涂层系统的粘合涂层,例如燃气轮机的涡轮机,燃烧器和增压器部件。 粘合涂层的组成具有渐变的热膨胀性能,其可以缓和金属基材与保护基材的TBC的绝热陶瓷层之间的转变,同时也降低粘结涂层的使用温度,从而降低其 氧化。 优选地,粘合涂层具有多层,各个粘合涂层的导热系数非常接近于基底的导热系数,以便促进从粘合涂层的外层到基底的热传递。 通过使粘合涂层的使用温度最小化,同时通过涂布体系对热膨胀性能进行分级,可实现更多的防剥落涂层体系。