Method for recording microstructural changes in a component
    11.
    发明授权
    Method for recording microstructural changes in a component 失效
    用于记录组件中的微结构变化的方法

    公开(公告)号:US07584669B2

    公开(公告)日:2009-09-08

    申请号:US10589791

    申请日:2005-02-14

    IPC分类号: G01N3/00

    摘要: Method for recording microstructural changes in a layer system component. A specific material parameter of the component is measured. The layer system may include an alloy substrate and an alloy or porous ceramic layer. The material parameter may be measured a plurality of times. The measured material parameter may include electrical capacitance, specific heat capacity, peltier coefficient or magnetic susceptibility. The material parameter may first be measured on a new component and subsequent measurements may be performed at a time interval after operational use. The recorded material parameter is then used to determine microstructural changes in the substrate or the layer material of the component caused by changes in precipitation, cracks, or depletion of an alloying element.

    摘要翻译: 在层系统组件中记录微结构变化的方法。 测量组件的具体材料参数。 层系统可以包括合金基底和合金或多孔陶瓷层。 可以多次测量材料参数。 测量的材料参数可以包括电容,比热容,珀耳替系数或磁化率。 材料参数可以首先在新组件上测量,并且可以在操作使用之后的时间间隔执行后续测量。 然后记录的材料参数用于确定由沉淀,裂纹或合金元素的消耗的变化引起的基板或部件的层材料中的微结构变化。

    Method and device for detecting contaminants on turbine components
    14.
    发明申请
    Method and device for detecting contaminants on turbine components 审中-公开
    用于检测涡轮机部件污染物的方法和装置

    公开(公告)号:US20070194773A1

    公开(公告)日:2007-08-23

    申请号:US10591511

    申请日:2005-03-01

    IPC分类号: G01N27/00

    CPC分类号: F01D25/002

    摘要: To detect contaminants on turbine components of a turbine, at least one current oscillation characteristic value of at least one turbine component is determined. Said value is preferably compared to an oscillation reference value. This permits contaminants to be detected, as the weight of the latter modifies the oscillation characteristic value of the turbine component.

    摘要翻译: 为了检测涡轮机的涡轮机部件上的污染物,确定至少一个涡轮机部件的至少一个当前振动特性值。 所述值优选地与振荡参考值进行比较。 这允许检测污染物,因为后者的重量改变了涡轮机部件的振荡特性值。

    Thermal barrier coating having subsurface inclusions for improved thermal shock resistance
    15.
    发明授权
    Thermal barrier coating having subsurface inclusions for improved thermal shock resistance 失效
    具有地下夹杂物的热障涂层,以提高耐热冲击性

    公开(公告)号:US06939603B2

    公开(公告)日:2005-09-06

    申请号:US10087716

    申请日:2002-03-01

    申请人: Matthias Oechsner

    发明人: Matthias Oechsner

    摘要: A component (10) having a thermal barrier coating (14) exhibiting an improved resistance to thermal shock. A plurality of stress relieving cracks (22) are formed at the free surface (24) of the thermal barrier coating as a result of the expansion of an inclusion (20) having a higher coefficient of thermal expansion than that of the surrounding matrix material (16). The inclusions function as crack initiators during the fabrication process as well as crack arrestors preventing the propagation of the cracks farther into the matrix material. The inclusion material may be selected to have an evaporation temperature that is less than the peak matrix material processing temperature, wherein the inclusion material will evaporate to leave a plurality of voids (30). In one embodiment, a superalloy substrate (12) is coated with a ceramic thermal barrier coating material having a plurality of spherical polymer inclusions disposed below its free surface. When the ceramic material is heated to its sintering temperature, the polymer inclusions induce cracks in the ceramic material through which the polymer then diffuses upon its subsequent evaporation.

    摘要翻译: 具有耐热冲击性改善的热障涂层(14)的部件(10)。 由于具有比周围基体材料的热膨胀系数高的夹杂物(20)的膨胀,在隔热涂层的自由表面(24)处形成多个应力消除裂纹(22) 16)。 夹杂物在制造过程中用作裂纹引发剂以及防止裂纹进一步扩散到基质材料中的裂纹抑制剂。 可以选择包含材料具有小于峰值基体材料加工温度的蒸发温度,其中包含材料将蒸发以留下多个空隙(30)。 在一个实施例中,超耐热合金基材(12)涂覆有陶瓷热障涂层材料,其具有设置在其自由表面下方的多个球形聚合物夹杂物。 当陶瓷材料被加热到其烧结温度时,聚合物夹杂物在陶瓷材料中引起裂纹,聚合物随后在其随后的蒸发时扩散。