公开(公告)号：US20150071788A1

公开(公告)日：2015-03-12

申请号：US14023568

申请日：2013-09-11

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Christopher Edward THOMPSON ,  John David WARD ,  James Ryan CONNOR ,  Mark Lawrence HUNT ,  Blake Allen FULTON

IPC: B23P6/04 ,  F01D5/14

CPC classification number: F01D5/14 ,  B23P6/005 ,  F01D5/005 ,  Y10T29/49734

Abstract: A modification process and modified article are disclosed. The modification process includes locating an area in an article, removing the area by machining to form a machined region, inserting a modification material into the machined region, securing the modification material to the article, machining the modification material flush with a geometry of the article, and applying a coating over at least a portion of the article. Another modification process includes locating an area under a suction side leading edge tip shroud fillet of an airfoil, removing the area by machining to form a hole, inserting a modification material having improved material properties as compared to an original base material into the hole, securing the modification material in place, machining the modification material and the airfoil to form a new fillet contour, and applying a coating over at least a portion of the airfoil. Also disclosed is the modified article.

Abstract translation: 公开了修改过程和修改的文章。 修改过程包括将制品中的区域定位，通过机加工去除区域以形成机加工区域，将改性材料插入加工区域，将改性材料固定到制品上，用制品的几何形状加工改性材料 ，并且在所述制品的至少一部分上施加涂层。 另一种改进方法包括将机翼的吸力侧前缘尖端护罩圆角下方的区域定位，通过加工去除该区域以形成孔，将与原始基底材料相比具有改善的材料特性的改性材料插入到孔中，固定 所述改性材料就位，加工所述改性材料和所述翼型件以形成新的圆角轮廓，以及在所述翼型的至少一部分上施加涂层。 还公开了修改的文章。

公开(公告)号：US20180163548A1

公开(公告)日：2018-06-14

申请号：US15377304

申请日：2016-12-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Dheepa SRINIVASAN ,  James Ryan CONNOR ,  Joydeep PAL

IPC: F01D5/28 ,  C23C4/134 ,  C23C4/129 ,  C23C4/01 ,  C23C4/11 ,  C23C14/04 ,  C23C14/08 ,  C23C14/34 ,  C23C14/30 ,  C23C24/04 ,  F01D9/04 ,  F01D9/02 ,  F01D11/00 ,  F23R3/00 ,  F02C7/22

CPC classification number: F01D5/288 ,  C23C4/01 ,  C23C4/11 ,  C23C14/04 ,  C23C14/081 ,  C23C14/083 ,  C23C14/30 ,  C23C14/34 ,  C23C24/04 ,  F01D9/023 ,  F05D2230/312 ,  F05D2230/313 ,  F05D2230/90 ,  F05D2300/171 ,  F05D2300/177 ,  F23R3/002 ,  F23R2900/00019

Abstract: A method of selectively applying an overlay coating to a coated article and a selectively treated coated article are provided. The method includes the steps of providing the coated article having a treatment region that includes a bond coat and a thermal barrier coating and selectively applying an overlay coating to the treatment region without stripping the treatment region from the coated article. The bond coat of the coated article which has been exposed to an operational temperature includes a first volume fraction of a β-phase microstructure that is less than a second volume fraction of a β-phase microstructure of a comparable bond coat of a comparable article which has not been exposed to the operational temperature. A coated article including an overlay coating selectively applied over a treatment region is also disclosed.

公开(公告)号：US20170081753A1

公开(公告)日：2017-03-23

申请号：US14859587

申请日：2015-09-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Liming ZHANG ,  Christopher Edward THOMPSON ,  James Ryan CONNOR ,  John D. WARD ,  Michael Anthony DEPALMA

IPC: C23C4/134 ,  F01D5/28 ,  F23R3/00 ,  C23C14/22

CPC classification number: C23C4/134 ,  C23C10/18 ,  C23C10/20 ,  C23C10/30 ,  C23C10/60 ,  C23C14/221 ,  C23C28/321 ,  C23C28/3455 ,  F01D5/288 ,  F05D2300/134 ,  F23R3/002

Abstract: A process for forming a thermal barrier coating system on a substrate is disclosed including preparing a slurry including a donor powder, an activator powder, and a binder. The donor powder includes a metallic aluminum alloy having a melting temperature higher than aluminum, and the binder includes at least one organic polymer gel. The process further includes applying the slurry to the substrate, heating the slurry to form an aluminide bond coating including an additive aluminide layer and an aluminide interdiffusion zone disposed between the substrate and the additive aluminide layer, and applying a thermal barrier coating to the aluminide bond coating. The thermal barrier coating may be a dense vertically-cracked thermal barrier coating, and the substrate may be a gas turbine component. Thermal barrier coating systems formed by the process are also disclosed.