Pratt-whitney Canada Corp

Thomas Georges

Marc Lorenzo Campomanes

Orlando Scalzo

Josianne Coulombe

Addison Rayner

Jessie Gagnon

A repair method for a component having a damaged portion on a surface thereof includes obtaining a feedstock mixture comprising base material particles and a binder, forming a preform with the feedstock mixture, placing the preform on the damaged portion of the surface of the component, and subjecting the component and the preform to at least one thermal cycle for forming a metallurgical bond in a solid state between the preform and the surface of the component after the at least one thermal cycle, the at least one thermal cycle occurring below a melting temperature of the component and the preform. A repair method involving pouring fluid feedstock mixture on a damaged portion of the surface of the component is also disclosed.

Repair methods for components having a damaged portion on a surface thereof

There is provided a method of treating a nickel base super alloy (NiSa) article. First, the NiSa article having fine grains is obtained. The NiSa article has a uniform distribution of the fine grains and substantially uniform mechanical properties throughout. One or more regions within the NiSa article are mechanically deformed. Then, the NiSa article is heat treated to obtain coarse grains in the one or more regions, the coarse grains having a size that is larger than that of the fine grains of the NiSa article outside of the one or more regions.

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Longueuil, Canada

Thomas Georges