Aluminum articles with wear-resistant coatings and methods...

C - Chemistry – Metallurgy – 23 – C

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C23C 24/04 (2006.01)

Patent

CA 2585728

A method for coating a surface of a component formed from aluminum or an alloy thereof includes the step (204) of cold gas-dynamic spraying a powder material on the component surface to form a coating, the powder material comprising at least one alloy from the group consisting of titanium, a titanium alloy, nickel, a nickel alloy, iron, an iron alloy, aluminum, an aluminum alloy, copper, a copper alloy, cobalt, and a cobalt alloy. In one embodiment, the method further includes the step (210) of heat treating the turbine component after the cold gas-dynamic spraying.

L'invention porte sur un procédé qui permet d'appliquer un revêtement sur la surface d'un composant formé en aluminium ou dans un alliage d'aluminium, selon lequel, dans une première étape (204), on procède à une projection dynamique à froid d'un matériau en poudre sur la surface du composant afin de former un revêtement, le matériau en poudre comprenant au moins un alliage choisi dans le groupe composé du titane, d'un alliage de titane, du nickel, d'un alliage de nickel, du fer, d'un alliage de fer, de l'aluminium, d'un alliage d'aluminium, du cuivre, d'un alliage de cuivre, du cobalt et d'un alliage de cobalt. Dans un mode de réalisation, le procédé comprend une étape (210) lors de laquelle le composant de turbine est soumis à un traitement thermique après la projection dynamique à froid.

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