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19 条记录 (耗时 0.026 秒)

    Thermal stress relaxation type ceramic coated heat-resistant element
    5.
    发明授权
    Thermal stress relaxation type ceramic coated heat-resistant element 失效
    热应力松弛型陶瓷涂层耐热元件

    公开(公告)号：US5630314A

    公开(公告)日：1997-05-20

    申请号：US320780

    申请日：1994-10-11

    申请人： Yoshitaka Kojima ,  Hideyuki Arikawa ,  Mitsuo Haginoya ,  Akira Mebata ,  Tetsuo Sasada ,  Hajime Toriya

    发明人： Yoshitaka Kojima ,  Hideyuki Arikawa ,  Mitsuo Haginoya ,  Akira Mebata ,  Tetsuo Sasada ,  Hajime Toriya

    IPC分类号： C23C4/02 ,  C23C14/02 ,  C23C14/08 ,  C23C14/22 ,  C23C28/00 ,  F01D5/28 ,  F02C6/18

    CPC分类号： C23C28/321 ,  C23C14/022 ,  C23C14/083 ,  C23C14/22 ,  C23C28/00 ,  C23C28/345 ,  C23C28/3455 ,  C23C4/02 ,  F01D5/28 ,  F01D5/288 ,  F05D2300/2112 ,  F05D2300/2118 ,  F05D2300/611 ,  Y02T50/67 ,  Y02T50/671 ,  Y10T428/12549 ,  Y10T428/131 ,  Y10T428/1317 ,  Y10T428/25 ,  Y10T428/2949 ,  Y10T428/2991 ,  Y10T428/30

    摘要： The present invention provides ceramic coated heat-resistant elements which suffer no damages even under high heat load conditions and can afford a thermal barrier effect stably for a long period of time and can be used, for example, as buckets and stationary blades of turbines. A method for making the elements is also provided. The ceramic coated heat-resistant element comprises a heat resisting alloy base mainly composed of Ni and/or Co and a heat-resistant coating layer provided on the surface of the base and is characterized in that said heat-resistant coating layer comprises a metal layer of an alloy superior to the base in high-temperature corrosion and oxidation resistance and provided on the base, an Al.sub.2 O.sub.3 ceramic thin film layer provided on the metal layer, a ZrO.sub.2 ceramic coating layer having dense texture provided on the Al.sub.2 O.sub.3 ceramic thin film layer and a ZrO.sub.2 ceramic coating layer having columnar texture provided on the ZrO.sub.2 ceramic coating layer having dense texture and cracks are present only in said ZrO.sub.2 ceramic coating layer having columnar texture in the direction of thickness along the boundary of the columns. A mixed layer composed of a metal superior to the base in high-temperature corrosion and oxidation resistance and a ZrO.sub.2 ceramic may be provided between the base and the metal layer.

    摘要翻译： 本发明提供陶瓷涂层耐热元件，即使在高热负荷条件下也不会遭受损坏，并且能够长时间稳定地提供热障效果，并且可以用作例如水轮机和涡轮机的固定叶片。 还提供了制造元件的方法。 陶瓷涂层耐热元件包括主要由Ni和/或Co组成的耐热合金基体和设置在基体表面上的耐热涂层，其特征在于所述耐热涂层包括金属层 在高温腐蚀和抗氧化性优于基体的合金中，在基体上设置设置在金属层上的Al 2 O 3陶瓷薄膜层，在Al 2 O 3陶瓷薄膜层上提供具有致密纹理的ZrO 2陶瓷涂层，以及 具有密集纹理和裂纹的ZrO 2陶瓷涂层上具有柱状结构的ZrO 2陶瓷涂层仅存在于沿着柱边界的厚度方向上具有柱状结构的所述ZrO 2陶瓷涂层中。 在基材和金属层之间可以设置由高温耐腐蚀和抗氧化性优于基材的金属和ZrO 2陶瓷组成的混合层。

    Alloy-coated gas turbine blade and manufacturing method thereof
    6.
    发明授权
    Alloy-coated gas turbine blade and manufacturing method thereof 失效
    合金涂层燃气轮机叶片及其制造方法

    公开(公告)号：US5507623A

    公开(公告)日：1996-04-16

    申请号：US286787

    申请日：1994-04-04

    申请人： Yoshitaka Kojima ,  Kiyoshi Otake ,  Akira Mebata ,  Hideyuki Arikawa ,  Tetsuo Sasada ,  Hajime Toriya

    发明人： Yoshitaka Kojima ,  Kiyoshi Otake ,  Akira Mebata ,  Hideyuki Arikawa ,  Tetsuo Sasada ,  Hajime Toriya

    IPC分类号： C22C19/05 ,  C22C19/07 ,  C23C4/02 ,  C23C4/18 ,  C23C10/02 ,  C23C10/48 ,  C23C28/02 ,  F01D5/28 ,  F01D9/02

    CPC分类号： C23C4/02 ,  C23C10/02 ,  C23C10/48 ,  C23C4/18 ,  F01D5/286 ,  F01D5/288 ,  Y10T428/12458 ,  Y10T428/1275 ,  Y10T428/12944

    摘要： A coated layer of this invention is composed of a lower alloy-coated layer 2 formed of an MCrAlY alloy whose principal element is Co or Co and Ni, an upper alloy-coated layer 1 formed of an MCrAlY alloy whose principal element is Ni and a portion 4 in which an Al content of the surface portion of the upper coated layer 1 is largest and is reduced gradually towards a more internal part. Manufacturing thereof involves the steps of forming the lower and upper coated layers and effecting an Al diffusion treatment into the upper coated layer. The upper coated layer having the portion which exhibits the large Al content contributes to a high-temperature anticorrosive property. A gas turbine blade is provided with the alloy-coated layer, wherein the lower coated layer incorporates a composite function to prevent a high-temperature corrosion of a base material when cracks are caused in the upper coated layer due to thermal stress. The gas turbine blade exhibits effects of improving the reliability and increasing a life-time.

    摘要翻译： 本发明的涂层由主要元素为Co或Co和Ni的MCrAlY合金形成的下合金涂层2，由主要元素为Ni的MCrAlY合金形成的上合金涂层1和 部分4，其中上涂层1的表面部分的Al含量最大并且朝向更内部的部分逐渐减小。 其制造包括形成下涂层和上涂层并对Al涂层进行Al扩散处理的步骤。 具有大Al含量的部分的上涂层有助于高温防腐蚀性能。 燃气轮机叶片具有合金涂层，其中下涂层具有复合功能，以防止由于热应力在上涂层中引起裂纹时基体材料的高温腐蚀。 燃气轮机叶片具有提高可靠性和延长使用寿命的效果。