Abstract: A belt for an elevator system includes a plurality of tension members arranged along a belt width and a jacket material at least partially encapsulating the plurality of tension members defining a traction surface, a back surface opposite the traction surface together with the traction surface defining a belt thickness, and two end surfaces extending between the traction surface and the back surface defining the belt width. A metallic coating layer is applied via deposition of solid particles over at least one end surface of the two end surfaces.

Abstract: A cost-effective method of forming a hydrophobic coating on a substrate and coated substrates are disclosed. Specifically, the method comprises applying amorphous powders of an alloy to the substrate through a cold spray process. Also provided is a novel type of hydrophobic coating made of metallic glasses or amorphous alloys. The hydrophobic coatings offer advantages such as, low cost, low maintenance, and high corrosion resistance.

Abstract: A method of repairing or, in certain cases, strengthening a metallic substrate at a damage site is provided and includes removing material from the substrate around the damage site to form a recess, and cold spraying particulate material into the recess to form a bead of deposited material.

Abstract: An adapter for connecting a cold-spray nozzle to a cold-spray machine includes a receiver having a first end and a second end and defining an internal space for receiving the cold-spray nozzle; an end cap engageable with the first end of the receiver for securing the cold-spray nozzle in the receiver and having an opening aligned with an outlet of the cold-spray nozzle; and a threaded connection at the second end of the receiver, the threaded connection being configured for connection to the cold-spray machine.

Abstract: An example method of modifying a powder according to the present disclosure includes contacting a powder comprising particles with a nitrogen-containing gas and improved flowability of the powder. A method of providing a powder and a reactor are also disclosed.

Abstract: A system for quality monitoring of additive manufacturing includes an acoustic emission (AE) sensor configured to be attached to an additive manufacturing substrate and to output a sensor signal indicative of acoustic vibrations received at the AE sensor and an AE module. The AE module is configured to receive the sensor signal from the AE sensor and process the sensor signal to determine at least one characteristic of an additive manufacturing process and/or an additively manufactured article.

Abstract: A method for marking an article may comprise forming a raised pad on a substrate of the existing article by applying a material to a surface of the substrate using a material addition process, and forming a design on a surface of the raised pad. The raised pad may be formed on the surface of the substrate to prevent mechanical stress from being propagated from the raised pad to the substrate in response to the design being formed on the raised pad.

Abstract: A carrier gas recovery system for use in cold spray manufacturing recovers carrier gas utilized during the cold spray process and recycles the carrier gas for immediate use or stores the carrier gas for future use. The carrier gas recovery system includes an enclosure subsystem, a filtration subsystem, a reclamation subsystem, and a compensation subsystem. An article is placed in the enclosure and particulate matter is carried to the article on a carrier gas stream. Carrier gas in the enclosure is filtered through the filtration subsystem to remove particulate from the carrier gas, and the filtered carrier gas is fed to the reclamation subsystem. The carrier gas either flows to a gas separator, to increase the concentration of carrier gas, or to the compensation subsystem if the carrier gas concentration is sufficiently high. The carrier gas can be stored in the compensation subsystem or used in further cold spray manufacturing.

Abstract: A feedstock cartridge for a cold spray system including at least one powder; and a binder that interconnects at least two particles of the at least one powder.

Abstract: A fluidized powder heat treatment classification assembly includes a gas source. A fluidized bed is connected to the gas source via a metered connection. The fluidized bed includes a first output connected to a powder classifier via at least a first valve. The powder classifier includes a catch container operable to decelerate a gas flow from the output and operable to catch particles entrained in the gas flow.

Abstract: A spray nozzle has a body having a flow passage. At least along a portion of the flow passage the body has a depth-wise compositional variation having: a cemented carbide first region; and a cemented carbide second region closer to the flow passage than the first region and having a higher boron content than a boron content, if any, of the first region.

Abstract: A method for cold spray deposition of a material on a substrate, comprising the steps of entraining a metal powder material in a stream of accelerant gas comprising hydrogen; forming a flow of shield gas around the stream of accelerant gas; and impacting the substrate with the stream of accelerant gas whereby the metal powder material is deposited on the substrate.

Abstract: A method of applying a coating system to a substrate includes applying a first layer of a high hardness and high modulus of elasticity with an added metal to the substrate, applying a second layer of the high hardness and high modulus of elasticity in combination with the added metal to the first layer. A percent by volume of the added metal in the second layer is lower than the percent by volume of the added metal in the first layer. The method also includes applying two or more intermediate layers formed from an applied mixture of the high hardness, high modulus of elasticity material and a metal material between the first layer and the second layer.

Abstract: An elevator safety brake for stopping an elevator car, the brake including a brake shoe including a base, and a brake pad disposed on the base, wherein the brake pad includes a rail contacting friction surface for contacting an elevator guide rail surface, wherein the brake pad is fuse bonded to the base, wherein the brake pad is chosen from a group consisting of: molybdenum and molybdenum alloys.

Abstract: A nozzle assembly for a cold spray deposition system includes a nozzle body with an axial bore. The axial bore defines a converging segment, a diverging segment downstream of the converging segment, and a throat fluidly connected between the converging and diverging segments of the axial bore. A particulate conduit is fixed within the axial bore and extends along the axial bore diverging segment for issuing solid particulate into the diverging segment of the axial bore.

Abstract: A powder feeder for a cold spray system includes a rotatable drum body, a housing surrounding the drum body, and a support structure. The support structure couples to the housing and supports the housing such that the drum body rotates about a rotation axis to provide in-situ blending of powder disposed within an interior of the drum body.

Abstract: A fluidized powder heat treatment classification assembly includes a gas source. A fluidized bed is connected to the gas source via a metered connection. The fluidized bed includes a first output connected to a powder classifier via at least a first valve. The powder classifier includes a catch container operable to decelerate a gas flow from the output and operable to catch particles entrained in the gas flow.

Abstract: An environmental barrier coating deposited onto a substrate by cold spraying has a microstructure having a porosity that increases through a thickness dimension extending from the substrate toward an outer layer. A process for forming an environmental barrier coating includes sequentially depositing a plurality of layers of solid powder onto a substrate by cold spraying and heat treating the plurality of layers.

Abstract: A nozzle assembly for a cold spray deposition system includes a nozzle body with an axial bore. The axial bore defines a converging segment, a diverging segment downstream of the converging segment, and a throat fluidly connected between the converging and diverging segments of the axial bore. A particulate conduit is fixed within the axial bore and extends along the axial bore diverging segment for issuing solid particulate into the diverging segment of the axial bore.

Abstract: A feedstock cartridge for a cold spray system including at least one powder; and a binder that interconnects at least two particles of the at least one powder.