Abstract: A method of verifying performance of a coated part includes calculating a deflection value as a function of a predetermined strain threshold value and a total thickness of a test coupon that comprises a coating on a substrate. The coating of the test coupon is co-deposited in a deposition process for producing a coated part. The test coupon is bent in an amount equal to the calculated deflection value and then evaluated as an indication of whether a mechanical characteristic of the coated part meets a specified level.

Abstract: A disclosed method of hard coating a wear surface of a valve of an aircraft air management system is performed by depositing a hardface alloy powder onto the wear surface, heating the wear surface and the hardface alloy powder to transform the hardface alloy powder into a molten liquid mass, and subsequently cooling the molten liquid hardface alloy mass to solidify the hardface alloy onto the wear surface. The disclosed process provides for localized application and subsequent bonding of the hardface alloy to discrete portions of the wear surface. The solidified hardface alloy coating may then be machined to obtain specific wear surface geometries.

Abstract: A method of manufacturing a sheath for protecting an airfoil component includes the steps of establishing an electro-forming solution having cobalt and phosphorus and electro-forming the sheath with a composition that includes the cobalt and the phosphorus using the electro-forming solution.

Abstract: An article includes a titanium substrate, a metallic layer diffusion bonded with the titanium substrate and a residual stress region that extends through the metallic layer and at least partially into the titanium substrate.

Abstract: A positive-displacement pump comprising a housing, a rotatable component disposed at least partially within the housing, and a film disposed at least partially between the housing and the rotatable component, where the film comprises a reinforcing material and a fluoropolymer material.

Abstract: An article for protecting an airfoil component includes a sheath having an outer side and an inner side that forms a cavity for receiving a leading edge of the airfoil component. The sheath is made of cobalt and phosphorus to protect the leading edge of the airfoil component from erosion.

Abstract: A method of and system for repairing the sheaves (24) in an elevator system has these steps. The ropes (22) associated with the sheave are removed, the sheave is cleaned, and a coating (24) is deposited on the cleaned surface. The coating is adapted to reduce the wear coefficient of the surface of the coated sheave by about 80% to 90% with respect to the sheave without a coating. The thickness of the coated sheave is adjusted to produce a specified sheave diameter.

Abstract: A method of processing an article includes mechanically working an article having a metallic layer disposed on a titanium substrate and establishing a residual stress region that extends through the metallic layer and at least partially into the titanium substrate.

Abstract: An erosion resistant coating for a substrate includes two or more coating layers affixed to the substrate having an increasing modulus of elasticity and hardness from an innermost layer of the coating adjacent to the substrate to an outermost layer of the coating furthest from the substrate. A method of applying a coating system to a substrate includes applying a first layer of a high hardness and high modulus of elasticity material combined with an added metal to the substrate. A second layer of the high hardness and high modulus of elasticity material combined with the added metal is applied to the first layer, resulting in a coating system wherein the second layer has a modulus of elasticity and hardness greater than the modulus of elasticity and hardness of the first layer.

Abstract: A positive-displacement pump comprising a housing, a rotatable component disposed at least partially within the housing, and a film disposed at least partially between the housing and the rotatable component, where the film comprises a reinforcing material and a fluoropolymer material.

Abstract: A coated sheave (24) for use in an elevator system in having at least one rope (22) and sheave combination, where the sheave has a predetermined shape and size for engagement with at least one rope in the elevator system. A coating (27) on the sheave has a wear coefficient of at least 80% less than the wear coefficient of the sheave without the coating.

Abstract: A method of processing an article having a substrate and a cobalt-phosphorous coating disposed on the substrate includes heat treating the article. At least one physical characteristic of the cobalt-phosphorous coating is altered using the heat treating to thereby change a performance characteristic of the article. For example, the article may be an actuator component having a bore or a shaft that is movably disposed at least partially within the bore.

Abstract: A method of processing an article having a substrate and a cobalt-phosphorous coating disposed on the substrate includes heat treating the article. At least one physical characteristic of the cobalt-phosphorous coating is altered using the heat treating to thereby change a performance characteristic of the article. For example, the article may be an actuator component having a bore or a shaft that is movably disposed at least partially within the bore.

Abstract: A coating which improves the wear performance of a part is described. The coating is applied over an article such as a part or a workpiece using an electroplating process. The coating broadly includes a cobalt material matrix with a hardness of at least 550 HV and a plurality of carbide particles distributed throughout the cobalt material matrix. The cobalt material matrix may be a cobalt-phosphorous alloy. The particles interspersed throughout the matrix may be chrome carbide or silicon carbide particles.

Abstract: A wear resistant device includes a substrate of a first metallic material and a wear resistant layer disposed on a substrate. The wear resistant layer includes a matrix of a second, different metallic material, particulates dispersed throughout the matrix, and a boron material dispersed within a portion of the matrix.

Abstract: A coating which improves the wear performance of a part is described. The coating is applied over an article such as a part or a workpiece using an electroplating process. The coating broadly includes a cobalt material matrix with a hardness of at least 550 HV and a plurality of carbide particles distributed throughout the cobalt material matrix. The cobalt material matrix may be a cobalt-phosphorous alloy. The particles interspersed throughout the matrix may be chrome carbide or silicon carbide particles.

Abstract: A coating process for fatigue critical components is provided. The coating process comprises the steps of providing a substrate having a first modulus of elasticity, depositing a layer of a material having a second modulus of elasticity less than the first modulus of elasticity onto the substrate, and depositing a coating over the material layer.

Abstract: A coating for protecting a surface against erosion when contacted by particles having a range of particle sizes or by high velocity fluid impingement includes a first coating on the surface forming a high bulk or composite hardness coating; and a hard ceramic coating on the first coating having a hardness higher than the hardness of the first coating and the erosion particles.

Abstract: A method of verifying performance of a coated part includes calculating a deflection value as a function of a predetermined strain threshold value and a total thickness of a test coupon that comprises a coating on a substrate. The coating of the test coupon is co-deposited in a deposition process for producing a coated part. The test coupon is bent in an amount equal to the calculated deflection value and then evaluated as an indication of whether a mechanical characteristic of the coated part meets a specified level.

Abstract: A coating process for fatigue critical components is provided. The coating process comprises the steps of providing a substrate having a first modulus of elasticity, depositing a layer of a material having a second modulus of elasticity less than the first modulus of elasticity onto the substrate, and depositing a coating over the material layer.