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    On-line monitor for detecting excessive temperatures of critical components of a turbine
    5.
    发明授权
    On-line monitor for detecting excessive temperatures of critical components of a turbine 有权
    用于检测涡轮机关键部件温度过高的在线监视器

    公开(公告)号：US06200088B1

    公开(公告)日：2001-03-13

    申请号：US09566572

    申请日：2000-05-08

    申请人： Paul J. Zombo ,  Brij B. Seth ,  Kent G. Hultgren ,  Michael A. Burke

    发明人： Paul J. Zombo ,  Brij B. Seth ,  Kent G. Hultgren ,  Michael A. Burke

    IPC分类号： F01D518

    CPC分类号： F01D5/187 ,  C23C4/00

    摘要： A monitor for detecting overheating of a critical component in a combustion turbine is provided. The monitor, when used in conjunction with a closed-loop cooling system, comprises a coating comprising an indicator material having an activation temperature. The coating is situated on the internal cooling passages of the critical component. The monitor further comprises a sensor connected to an outlet conduit of the cooling system for determining the amount of degradation of indicator material by monitoring the cooling fluid flowing through the outlet conduit. Embodiments further comprising “sniffer” tubes for use with open-loop air cooling systems also are provided. In alternative embodiments, auxiliary cooling systems for supplying auxiliary cooling to critical components at certain activation temperatures also are provided.

    摘要翻译： 提供了一种用于检测燃气轮机中的关键部件的过热的监视器。 当与闭环冷却系统结合使用时，监测器包括包含具有活化温度的指示剂材料的涂层。 涂层位于关键部件的内部冷却通道上。 显示器还包括连接到冷却系统的出口导管的传感器，用于通过监测流经出口导管的冷却流体来确定指示剂材料的劣化量。 还提供了还包括用于开环空气冷却系统的“嗅探”管的实施例。 在替代实施例中，还提供用于在某些激活温度下向关键部件提供辅助冷却的辅助冷却系统。

    On-line monitor for detecting excessive temperatures of critical components of a turbine
    6.
    发明授权
    On-line monitor for detecting excessive temperatures of critical components of a turbine 有权
    用于检测涡轮机关键部件温度过高的在线监视器

    公开(公告)号：US6062811A

    公开(公告)日：2000-05-16

    申请号：US129905

    申请日：1998-08-06

    申请人： Paul J. Zombo ,  Brij B. Seth ,  Kent G. Hultgren ,  Michael A. Burke

    发明人： Paul J. Zombo ,  Brij B. Seth ,  Kent G. Hultgren ,  Michael A. Burke

    IPC分类号： C23C4/00 ,  F01D5/18 ,  G01N33/00 ,  F01B25/26

    CPC分类号： F01D5/187 ,  C23C4/00

    摘要： A monitor for detecting overheating of a critical component in a combustion turbine is provided. The monitor, when used in conjunction with a closed-loop cooling system, comprises a coating comprising an indicator material having an activation temperature. The coating is situated on the internal cooling passages of the critical component. The monitor further comprises a sensor connected to an outlet conduit of the cooling system for determining the amount of degradation of indicator material by monitoring the cooling fluid flowing through the outlet conduit. Embodiments further comprising "sniffer" tubes for use with open-loop air cooling systems also are provided.

    摘要翻译： 提供了一种用于检测燃气轮机中的关键部件的过热的监视器。 当与闭环冷却系统结合使用时，监测器包括包含具有活化温度的指示剂材料的涂层。 涂层位于关键部件的内部冷却通道上。 显示器还包括连接到冷却系统的出口导管的传感器，用于通过监测流经出口导管的冷却流体来确定指示剂材料的劣化量。 还提供了还包括用于开环空气冷却系统的“嗅探”管的实施例。

    Component having wear coating applied by cold spray process
    7.
    发明授权
    Component having wear coating applied by cold spray process 有权
    通过冷喷涂工艺涂覆耐磨涂层的组件

    公开(公告)号：US08168289B2

    公开(公告)日：2012-05-01

    申请号：US10836560

    申请日：2004-04-30

    申请人： Brij B. Seth ,  Gregg P. Wagner

    发明人： Brij B. Seth ,  Gregg P. Wagner

    IPC分类号： B32B7/02

    CPC分类号： F01D5/005 ,  C23C24/04 ,  C23C28/021 ,  C23C28/023 ,  C23C28/321 ,  C23C28/324 ,  F01D5/288 ,  F05D2230/31 ,  Y10T407/27 ,  Y10T428/12063 ,  Y10T428/12139 ,  Y10T428/12146 ,  Y10T428/24769 ,  Y10T428/24942 ,  Y10T428/24983 ,  Y10T428/252 ,  Y10T428/31678 ,  Y10T428/8305

    摘要： A component (10) including a substrate material (12) and a wear alloy coating (14) applied to the substrate by a cold spray process. Particles of the wear alloy coating material (16) are directed toward a target surface (18) of the substrate at a velocity sufficiently high for the particles to deform and to adhere to the target surface. The size and/or composition of the particles may be varied during the cold spray process to produce a coating with a varying property across the depth of the coating. Particles of the wear alloy material may be applied by cold spraying along with particles of a second material such as a lubricant or a ceramic material. For Group 5 hard facing materials, the size and distribution of the embedded carbide nodules may be controlled by controlling the selection of the carbide particles being sprayed. The cold spray process permits a wear alloy coating to be applied proximate a brazed joint or over a directionally stabilized or single crystal material without degrading the underlying material.

    摘要翻译： 包括通过冷喷涂工艺施加到基底的基底材料（12）和耐磨合金涂层（14）的部件（10）。 磨损合金涂层材料（16）的颗粒以足够高的速度被引导到基板的目标表面（18），以使颗粒变形并附着到目标表面。 颗粒的尺寸和/或组成可以在冷喷涂过程中变化，以在涂层的深度上产生具有不同性质的涂层。 耐磨合金材料的颗粒可以通过冷喷涂以及诸如润滑剂或陶瓷材料的第二材料的颗粒施加。 对于第5组硬质材料，可以通过控制喷涂的碳化物颗粒的选择来控制嵌入的碳化物结节的尺寸和分布。 冷喷涂工艺允许磨损合金涂层施加在钎焊接头附近或在定向稳定或单晶材料上施加，而不会降低底层材料。

    Crack-free erosion resistant coatings on steels
    8.
    发明授权
    Crack-free erosion resistant coatings on steels 有权
    钢无裂纹耐腐蚀涂层

    公开(公告)号：US07758925B2

    公开(公告)日：2010-07-20

    申请号：US11858979

    申请日：2007-09-21

    申请人： Brij B. Seth

    发明人： Brij B. Seth

    IPC分类号： B05D3/00

    CPC分类号： C23C8/80 ,  C21D1/84 ,  C23C26/00 ,  Y10S428/938 ,  Y10T428/1275 ,  Y10T428/12757 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/12951 ,  Y10T428/12979

    摘要： A method for preparing a protective layer (38) on a surface of the substrate (36) that requires a bonding temperature (BT) above a detrimental phase transformation temperature range (28) of the substrate, and then cooling the layer and substrate without cracking the layer or detrimentally transforming the substrate. The protective layer (38) and the substrate (36) are cooled from the bonding temperature (BT) to a temperature (46) above the detrimental phase transformation range (28) at a first cooling rate (30) slow enough to avoid cracking the protective layer. Next, the protective layer and the substrate are cooled to a temperature below the detrimental phase transformation range of the substrate at a second cooling rate (27) fast enough to pass the detrimental phase transformation range before a substantial transformation of the substrate into the detrimental phase can occur.

    摘要翻译： 一种用于在衬底（36）的表面上制备保护层（38）的方法，其需要高于衬底的有害相变温度范围（28）的接合温度（BT），然后冷却层和衬底而不破裂 该层或有害地转化底物。 将保护层（38）和基板（36）从接合温度（BT）到高于有害相变范围（28）的温度（46）以足够慢的第一冷却速率（30）冷却，以避免破裂 保护层。 接下来，将保护层和衬底冷却至低于衬底的有害相变范围的温度，第二冷却速率（27）足够快以在将衬底基本转化为有害相之前通过有害的相变范围 可以发生。

    Mixed powder deposition of components for wear, erosion and abrasion resistant applications
    9.
    发明授权
    Mixed powder deposition of components for wear, erosion and abrasion resistant applications 有权
    用于磨损，侵蚀和耐磨应用的组分的混合粉末沉积

    公开(公告)号：US06706319B2

    公开(公告)日：2004-03-16

    申请号：US10206416

    申请日：2002-07-26

    申请人： Brij B. Seth ,  Gregg P. Wagner

    发明人： Brij B. Seth ,  Gregg P. Wagner

    IPC分类号： B05D112

    CPC分类号： F01D11/12 ,  B24D18/00 ,  C23C24/04 ,  F05D2230/31

    摘要： An abrasive coating and a process for forming the abrasive coating by co-depositing hard particles within a matrix material onto a substrate using a cold spray process. The cold sprayed combination of hard particles and matrix material provides a coating that is wear, erosion and oxidation resistant. The abrasive coating may have different compositions across its depth. The hard particles may be deposited at different densities across the thickness of the matrix material. A first layer of the abrasive coating proximate the surface of the substrate may be devoid of hard particles.

    摘要翻译： 磨料涂层和用于通过使用冷喷涂方法将基质材料中的硬颗粒共沉积到基底上来形成磨料涂层的方法。 硬质颗粒和基体材料的冷喷涂组合提供了耐磨损，抗侵蚀和抗氧化的涂层。 研磨涂层在其深度上可以具有不同的组成。 硬颗粒可以跨越基质材料的厚度以不同的密度沉积。 接近基材表面的磨料涂层的第一层可能没有硬质颗粒。

    Repair of nickel-based alloy turbine disk
    10.
    发明授权
    Repair of nickel-based alloy turbine disk 有权
    镍基合金涡轮盘修复

    公开(公告)号：US08266800B2

    公开(公告)日：2012-09-18

    申请号：US10938713

    申请日：2004-09-10

    申请人： David Scott Segletes ,  Brij B. Seth ,  Srikanth C. Kottilingam ,  Peter Jon Ditzel

    发明人： David Scott Segletes ,  Brij B. Seth ,  Srikanth C. Kottilingam ,  Peter Jon Ditzel

    IPC分类号： B23P6/00

    CPC分类号： F01D5/005 ,  F05D2230/232 ,  F05D2230/30 ,  F05D2300/606 ,  F05D2300/607 ,  Y10T29/49318 ,  Y10T29/49726 ,  Y10T29/4973 ,  Y10T29/49732 ,  Y10T29/49734 ,  Y10T29/49737 ,  Y10T29/49742 ,  Y10T29/49746

    摘要： A method of adding material to a nickel-based superalloy component, such as a gas turbine rotor disk, without damaging the underlying material and without creating an unacceptable level of cracking. The method is advantageously applied in the repair of Alloy 706 turbine rotors having experienced operating failures in the steeple region of the disk. Once the damaged material is removed, replacement nickel-based superalloy material is added using a welding process that protects both the underlying material and the replacement material. The replacement material may be added by welding, with the preheat temperature maintained no lower than 100° C. below the aging temperature of the deposited alloy and with the interpass temperature maintained below the solution annealing temperature of the alloy. Alternatively, the replacement material may be preformed and welded to the original material using a friction welding process. In one embodiment, a replacement steeple of directionally solidified or single crystal material is installed onto a disk hub using a linear friction welding technique.

    摘要翻译： 将材料添加到镍基超级合金部件（例如燃气轮机转子盘）上而不损坏下面的材料并且不产生不可接受的开裂水平的方法。 该方法有利地应用于在盘的尖顶区域中经历操作故障的合金706涡轮转子的修复中。 一旦损坏的材料被去除，使用保护底层材料和替换材料的焊接工艺来添加替代的镍基超级合金材料。 替代材料可以通过焊接加入，预热温度保持在低于沉积合金的老化温度的100℃以下，层间温度保持在合金的固溶退火温度以下。 或者，可以使用摩擦焊接方法将更换材料预成型并焊接到原始材料。 在一个实施例中，使用线性摩擦焊接技术将定向凝固或单晶材料的替换尖顶安装到盘毂上。