Abstract:
In one embodiment, a system includes a welding controller configured to receive images from multiple observation points directed toward a deposition zone. The welding controller is also configured to control a parameter affecting deposition based on a differential analysis of the images.
Abstract:
A method of coating a substrate with cryo-milled, nano-grained particles includes forming a face-centered-cubic gamma matrix comprising nickel, cobalt, chromium, tungsten and molybdenum, adding a dispersion strengthening material to the gamma matrix to form a first mixture, cryo-milling the first mixture to form a second mixture to form a nano-grained structure, and cold spraying the second mixture onto a substrate to form a coating having a nano-grained structure.
Abstract:
A coating composition, a process of applying a coating having a coating composition, and a process of forming a coating composition are disclosed. The coating composition includes an alloy and an oxide component comprising nickel oxide. The process of applying the coating includes cold spraying the coating onto the article. The process of forming the coating composition includes blending and milling the alloy with the oxide component.
Abstract:
A method of coating a substrate with cryo-milled, nano-grained particles includes forming a face-centered-cubic gamma matrix comprising nickel, cobalt, chromium, tungsten and molybdenum, adding a dispersion strengthening material to the gamma matrix to form a first mixture, cryo-milling the first mixture to form a second mixture to form a nano-grained structure, and cold spraying the second mixture onto a substrate to form a coating having a nano-grained structure.
Abstract:
A method of manufacturing a rotor includes: (a) providing a core shaft; (b) cold spraying alloy powder particles onto the core shaft; (c) controlling the cold spraying to form sections at least of different shape along the core shaft to thereby form a near-net shape rotor; and (d) heat treating the near-net shape rotor to relieve stresses and to form diffusion bonding across interfaces between individual powder particles and the core shaft, and finish-shaping said near-net shape rotor.
Abstract:
A method of joining components includes applying a first coating to a first surface of a first component. The first coating is cold sprayed onto the first surface. The method also includes applying a second coating to a second surface of a second component. The second coating is cold sprayed onto the second surface. The first surface of the first component is adjoined to the second surface of the second component to form an interface zone. A liquid layer, including at least a portion of the first and second coatings is formed at the interface zone and then solidified to form a bond between the first and second components.
Abstract:
Disclosed is a coating, a turbine component, and a process of fabricating a turbine component. The coating includes a ceramic phase formed by ceramic particles and a ductile matrix having a ductility greater than the ceramic phase. The ceramic phase includes substantially the same microstructure as the ceramic particles. The turbine component includes a surface having the coating. The process includes applying the coating to the surface of the turbine component.
Abstract:
A process for applying a hard coating to a turbine rotor comprising providing a turbine rotor having at least one surface; applying a first coating to the at least one surface, the first coating being cold sprayed onto the at least one surface; applying a second coating onto the first coating to form the hard coating, wherein the hard coating is configured to substantially resist wear of a brush seal in physical communication with the turbine rotor.
Abstract:
An enclosure system is provided having a shroud configured to cover at least a portion of a shaft. The shroud includes an input port and an output port. The input port is configured to accept at least one of a coating tool and an abrasive supplying tool. The output port is connected to a vacuum system.
Abstract:
A coating composition, a process of applying a coating having a coating composition, and a process of forming a coating composition are disclosed. The coating composition includes an alloy and an oxide component comprising nickel oxide. The process of applying the coating includes cold spraying the coating onto the article. The process of forming the coating composition includes blending and milling the alloy with the oxide component.