Method of aluminizing, in particular for aluminizing elongate me

Details Method of aluminizing, in particular for aluminizing elongate me Method of aluminizing, in particular for aluminizing elongate me

1994-06-07

1997-07-15

Silverberg, Sam

Coating processes

Nonuniform coating

Applying superposed diverse coatings or coating a coated base

C21D 812

Patent

active

056481209

ABSTRACT:
In this method, aluminization is performed by using thermochemical treatment, and an aluminum donor piece (6) based on metallic aluminum is placed in the vicinity of the surface to be treated (2), prior to said treatment. Preferably, said piece is provided with a thin metal coating (10) that withstands the treatment temperature. The invention is particularly applicable to protecting cooling channels in the blades of a gas turbine.

REFERENCES:
patent: 4427720 (1984-01-01), Gauje
patent: 5135777 (1992-08-01), Davis

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